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1.
Iran J Allergy Asthma Immunol ; 23(2): 127-138, 2024 Apr 07.
Article in English | MEDLINE | ID: mdl-38822508

ABSTRACT

The tragic COVID-19 pandemic affected many children worldwide. Among the factors that may influence the course of viral infections including COVID-19, it is still uncertain whether atopy has a protective or predisposing role. The study aims to address the knowledge gap by investigating the prevalence and severity of COVID-19 among atopic children in Kerman, in 2022. A descriptive-analytical cross-sectional study on children with a history of atopy was performed in Kerman Medical University. Demographic information, type of atopy (including allergic rhinitis, Hyper-Reactive Airway Disease (HRAD) or asthma, eczema, urticaria, anaphylaxis, and food allergy), history of COVID-19 infection, and disease severity were recorded. A total of 1007 children and adolescents, (boys: 56.4%, girls: 43.6%, age:5.61±2.64 years) were included in the study. History of COVID-19 infection was positive in 53.5%, with 75.9% of the cases exhibiting mild disease severity. The frequency of atopies was HRAD or asthma (67.2%), allergic rhinitis (42.6%), and food allergy (27.4%). The frequency of COVID-19 cases was significantly higher among patients with HRAD or asthma, whereas it was significantly lower among those with food allergies, anaphylaxis, and eczema. Among atopic individuals, COVID-19 severity was significantly lower in those with allergic rhinitis, while the opposite trend was observed among food-allergic individuals. This study sheds light on the relationship between atopy and COVID-19 among pediatric patients. It seems specific types of atopies may influence the risk and severity of COVID-19 infection differently. A better understanding of these associations can inform clinical management and preventive measures for vulnerable pediatric populations.


Subject(s)
COVID-19 , SARS-CoV-2 , Severity of Illness Index , Humans , COVID-19/epidemiology , COVID-19/immunology , Iran/epidemiology , Female , Male , Cross-Sectional Studies , Child , Prevalence , Child, Preschool , Adolescent , Asthma/epidemiology , Rhinitis, Allergic/epidemiology , Food Hypersensitivity/epidemiology
2.
Iran J Allergy Asthma Immunol ; 23(2): 139-148, 2024 Apr 07.
Article in English | MEDLINE | ID: mdl-38822509

ABSTRACT

BACKGROUND: There are limited data on severe cutaneous adverse reactions (SCARs) associated with antiepileptic medications. The current study aims to investigate the clinical and epidemiological characteristics of antiepileptic medication-induced SCARs in hospitalized children. MATERIALS AND METHODS: The current five-year retrospective study was conducted at Isfahan University of Medical Sciences, Iran. This study included all children with a definite diagnosis of SCARs secondary to the use of antiepileptic medications based on the world health organization (WHO) definition. In our study SCARs were categorized into three fields: Hypersensitivity syndrome, drug reaction with eosinophilia and systemic symptoms (DRESS), and Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN). RESULTS: Among 259 children with SCARs induced by antiepileptic medications, 199 (76.83%), 42 (16.22%), and 18 (6.95%) had hypersensitivity syndrome, DRESS, and SJS/TEN, respectively. Phenobarbital was the most common offending drug in all types of SCARs. The multinomial logistic regression model revealed that lymphadenopathy increased the occurrence of DRESS by 35 times compared to hypersensitivity syndrome (P < 0.001). Girls were at risk of SJS/TEN approximately 6 times more than boys (P = 0.027). Age (P = 0.021), weight (P = 0.036), and mucosal involvement (P < 0.001) affected the hospitalization duration in children with SCARs related to antiepileptic medication. CONCLUSION: There are some similarities and differences in the clinical and epidemiological features of Iranian children suffering from antiepileptic medication-induced SCARs.


Subject(s)
Anticonvulsants , Stevens-Johnson Syndrome , Humans , Anticonvulsants/adverse effects , Female , Male , Child , Retrospective Studies , Child, Preschool , Iran/epidemiology , Stevens-Johnson Syndrome/epidemiology , Stevens-Johnson Syndrome/etiology , Drug Hypersensitivity Syndrome/epidemiology , Drug Hypersensitivity Syndrome/etiology , Drug Hypersensitivity Syndrome/diagnosis , Adolescent , Infant , Child, Hospitalized , Hospitalization/statistics & numerical data , Risk Factors
3.
Parasit Vectors ; 17(1): 244, 2024 May 31.
Article in English | MEDLINE | ID: mdl-38822348

ABSTRACT

BACKGROUND: Snails of the Lymnaeidae family are the intermediate hosts of Fasciola species, the causative agents of fascioliasis. The purpose of this study was to determine the prevalence of Fasciola species in lymnaeid snails and to investigate the association of geoclimatic factors and Fasciola species distribution in northwestern provinces of Iran using geographical information system (GIS) data. METHODS: A total of 2000 lymnaeid snails were collected from 33 permanent and seasonal habitats in northwestern Iran during the period from June to November 2021. After identification by standard morphological keys, they were subjected to shedding and crushing methods. Different stages of Fasciola obtained from these snails were subjected to the ITS1 polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method for species identification. The associations of weather temperature, rainfall, humidity, evaporation, air pressure, wind speed, elevation, and land cover with the distribution of Fasciola species were investigated. Geographical and statistical analysis was performed using ArcMap and SPSS software, respectively, to determine factors related to Fasciola species distribution. RESULTS: Of the 2000 snails collected, 19 were infected with Fasciola hepatica (0.09%), six with F. gigantica (0.03%), and 13 with other trematodes. Among geoclimatic and environmental factors, mean humidity, maximum humidity, and wind speed were significantly higher in areas where F. hepatica was more common than F. gigantica. The altitude of F. hepatica-prevalent areas was generally lower than F. gigantica areas. No significant relationship was observed between other investigated geoclimatic factors and the distribution of infected snails. CONCLUSIONS: The present study showed the relationship of humidity and wind speed with the distribution of snails infected with F. hepatica or F. gigantica in the northwestern regions of Iran. In contrast to F. gigantica, F. hepatica was more prevalent in low-altitude areas. Further research is recommended to elucidate the relationship between geoclimatic factors and the presence of intermediate hosts of the two Fasciola species.


Subject(s)
Fasciola , Fascioliasis , Snails , Animals , Iran/epidemiology , Fascioliasis/epidemiology , Fascioliasis/veterinary , Fascioliasis/parasitology , Snails/parasitology , Fasciola/genetics , Fasciola/isolation & purification , Fasciola/classification , Fasciola hepatica/genetics , Fasciola hepatica/isolation & purification , Fasciola hepatica/physiology , Fasciola hepatica/classification , Climate , Ecosystem , Seasons , Polymorphism, Restriction Fragment Length
4.
Sci Rep ; 14(1): 12703, 2024 Jun 03.
Article in English | MEDLINE | ID: mdl-38830913

ABSTRACT

Studies on the beneficial role of dietary antioxidants in preventing or managing hypertension in postmenopausal women are infrequent. The present cross-sectional study aimed to assess the association between dietary antioxidants and hypertension among menopausal women in Rafsanjan, a city located in the southeast of Iran. This study was based on data from the Rafsanjan Cohort Study (RCS), as part of the Prospective Epidemiological Research Studies in IrAN (PERSIAN). Among 2359 postmenopausal women, finally, 1936 women were included in this study. Participants were grouped as having normal blood pressure (BP), elevated BP, stage 1 hypertension, or stage 2 hypertension as defined by the 2017 American College of Cardiology (ACC)/American Heart Association (AHA) BP guideline. A food frequency questionnaire (FFQ), was utilized to ascertain the levels of various nutrients and dietary antioxidants in the diet. The association between dietary intakes of antioxidants and blood pressure groups was evaluated by crude and adjusted models in the multinominal logistics regression analysis. Normal BP, elevated BP, stage 1 hypertension, and stage 2 hypertension were observed in 35.69%, 3.62%, 10.59%, and 50.10% of postmenopausal women respectively. In the adjusted model, in subjects with higher consumption of ß-carotene, the odds ratios of elevated BP in the 3rd quartile was about 2 times (OR: 2.04 (1.06-3.93) higher than 1st quartile. Also, in subjects with medium quality of DAQS, the odds ratios of elevated BP and stage 1 blood pressure were about 2 times (OR: 2.09 (1.05-4.17) and 1.69 times (OR: 1.69 (1.09-2.63) higher than subjects with low quality respectively. Furthermore, we did not find any statistically significant association between increased intake of dietary antioxidants and decreased odds of hypertension. After controlling the effects of confounding variables, increased dietary intake of selenium, carotenoids, vitamin A, vitamin C, and vitamin E did not decrease the odds of hypertension in postmenopausal women. Accordingly, it is suggested that this association be further investigated in the follow-up phase of this prospective study.


Subject(s)
Antioxidants , Hypertension , Humans , Female , Hypertension/epidemiology , Hypertension/prevention & control , Antioxidants/administration & dosage , Middle Aged , Iran/epidemiology , Cross-Sectional Studies , Diet , Postmenopause , Blood Pressure , Cohort Studies , Menopause , Prospective Studies , Aged
5.
BMC Infect Dis ; 24(1): 553, 2024 Jun 03.
Article in English | MEDLINE | ID: mdl-38831292

ABSTRACT

BACKGROUND: The emergence of coronavirus disease 2019 (COVID-19) as a global health emergency necessitates continued investigation of the disease progression. This study investigated the relationship between eosinophilia and the severity of COVID-19 in chronic obstructive pulmonary disease (COPD) patients. METHODS: This cross-sectional study was conducted on 73 COPD patients infected by COVID-19 in Afzalipour Hospital, Iran. Peripheral blood samples were collected for hematological parameter testing, including eosinophil percentage, using Giemsa staining. Eosinophilia was defined as≥ 2% and non-eosinophilia as< 2%. The severity of pulmonary involvement was determined based on chest CT severity score (CT-SS) (based on the degree of involvement of the lung lobes, 0%: 0 points, 1-25%: 1 point, 26-50%: 2 points, 51-75%: 3 points, and 76-100%: 4 points). The CT-SS was the sum of the scores of the five lobes (range 0-20). RESULTS: The average age of patients was 67.90±13.71 years, and most were male (54.8%). Non-eosinophilic COPD patients were associated with more severe COVID-19 (P= 0.01) and lower oxygen saturation (P= 0.001). In addition, the study revealed a significant difference in the chest CT severity score (CT-SS) between non-eosinophilic (9.76±0.7) and eosinophilic COPD patients (6.26±0.63) (P< 0.001). Although non-eosinophilic COPD patients had a higher mortality rate, this difference was not statistically significant (P= 0.16). CONCLUSIONS: Our study demonstrated that reduced peripheral blood eosinophil levels in COPD patients with COVID-19 correlate with unfavorable outcomes. Understanding this association can help us identify high-risk COPD patients and take appropriate management strategies to improve their prognosis.


Subject(s)
COVID-19 , Eosinophilia , Eosinophils , Pulmonary Disease, Chronic Obstructive , SARS-CoV-2 , Severity of Illness Index , Humans , Pulmonary Disease, Chronic Obstructive/complications , Pulmonary Disease, Chronic Obstructive/physiopathology , COVID-19/complications , COVID-19/mortality , COVID-19/blood , Male , Female , Aged , Cross-Sectional Studies , Middle Aged , Eosinophilia/blood , Aged, 80 and over , Iran/epidemiology , Hospitalization/statistics & numerical data , Tomography, X-Ray Computed , Lung/diagnostic imaging , Lung/pathology , Lung/physiopathology , Leukocyte Count
6.
Am J Disaster Med ; 19(2): 161-174, 2024.
Article in English | MEDLINE | ID: mdl-38698515

ABSTRACT

INTRODUCTION: Terrorism is a combined phenomenon, the concept of which is strongly affected by the spatial and temporal situation. Terrorist attacks can affect the demand for and delivery of healthcare services and often put a unique burden on the first responders, hospitals, and health systems. This study provides an epidemiological description of all -terrorist-related attacks in Iran from 1979 to 2020. METHODS: Data were collected using a retrospective search through Global Terrorism Database (GTD). GTD was searched using internal database search functions for all incidents that occurred in Iran from January 1, 1979, to December 31, 2020. The target type, attack type, primary weapon type, perpetrator group, country where the incident occurred, and the number of fatalities and injuries were collected, and the results were analyzed. RESULTS: In total, 543 terrorist attacks were identified in the study period, which resulted in the fatality of 1,150 people and the injury of 3,792 people. It indicates 2.12 fatalities and 7,009 injuries per incident. Explosives were used in 301 attacks (55.63 percent), followed by incendiary weapons in 177 attacks (32.71 percent). The most significant types of attacks are bombings in 290 attacks (52.3 percent), followed by assassination in 99 attacks (17.9 percent), and armed assaults in 81 attacks (14.6 percent). CONCLUSION: Due to a decreasing trend of terrorist incidents in Iran, we can state that national security and stability have improved in Iran. However, the development of security promotion policies and passive defense approaches can help prevent the occurrence of such incidents.


Subject(s)
Terrorism , Iran/epidemiology , Humans , Retrospective Studies , Wounds and Injuries/epidemiology , Wounds and Injuries/mortality
7.
BMC Health Serv Res ; 24(1): 570, 2024 May 02.
Article in English | MEDLINE | ID: mdl-38698401

ABSTRACT

BACKGROUND: HIV partner notification services can help people living with HIV (PLHIV) to identify, locate, and inform their sexual and injecting partners who are exposed to HIV and refer them for proper and timely counseling and testing. To what extent these services were used by PLHIV and what are the related barriers and facilitators in southeast Iran are not known. So, this study aimed to explore HIV notification and its barriers and facilitators among PLHIV in Iran. METHODS: In this qualitative study, the number of 23 participants were recruited from November 2022 to February 2023 including PLHIV (N = 12), sexual partners of PLHIV (N = 5), and staff members (N = 6) of a Voluntary Counseling and Testing (VCT) center in Kerman located in the southeast of Iran. Our data collection included purposive sampling to increase variation. The content analysis was conducted using the Graneheim and Lundman approach. The analysis yielded 221 (out of 322) related codes related to HIV notification, its barriers, and its facilitators. These codes were further categorized into one main category with three categories and nine sub-categories. RESULTS: The main category was HIV notification approaches, HIV notification barriers, and facilitators. HIV notification approaches were notification through clear, and direct conversation, notification through gradual preparation and reassurance, notification due to being with PLHIV, notification through suspicious talking of the physician, and notification due to the behavior of others. Also, the barriers were classified into individual, social, and environmental, and healthcare system barriers and the facilitators were at PLHIV, healthcare staff, and community levels. Stigma was a barrier mentioned by most participants. Also, the main facilitator of HIV notification was social support, especially from the family side. CONCLUSIONS: The findings highlighted the multidimensionality of HIV notification emphasizing the importance of tailored support and education to enhance the notification process for PLHIV and their networks. Also, our results show that despite all the efforts to reduce stigma and discrimination in recent years, stigma still exists as a main obstacle to disclosing HIV status and other barriers are the product of stigma. It seems that all programs should be directed towards destigmatization.


Subject(s)
Contact Tracing , HIV Infections , Qualitative Research , Humans , Iran/epidemiology , HIV Infections/epidemiology , HIV Infections/psychology , Male , Contact Tracing/methods , Female , Adult , Sexual Partners/psychology , Middle Aged , Social Stigma , Counseling
8.
J Prim Care Community Health ; 15: 21501319241251941, 2024.
Article in English | MEDLINE | ID: mdl-38708693

ABSTRACT

In this era in which the vast majority of the global population have developed COVID-19 infection and/or got vaccinated against it, identification of the late disorders as the vaccines' side effect or long-COVID manifestation seems essential. This study included the vaccinated individuals of 4 different vaccine regimens including inactivated virus-based, subunit protein, and adenovirus-based vaccines in a follow-up schedule 6-month post the booster shot. All the documented vaccine adverse events were thoroughly assessed considering the cases' medical history by Adverse Events Committee of Pasteur Institute of Iran. Totally 329 individuals who got 3 doses of vaccination were followed 6 months after the booster shots among whom 41 (12.4%) cases with the mean age of 40.9 ± 10.48 years had a type of disorder. Gynecological and osteoarticular involvements were the most common recorded disorders of which 73.1% were possibly linked to vaccination outcomes and the rest were affected by both long-COVID-19 and vaccination. Notably, the average time of symptoms persistence was 155 ± 10.4 days. This study has the advantage of long-term follow-up which presents various forms of late events in each episode of COVID-19 infection and vaccination. About 26.8% of people with persistent complications suffered from both long-COVOD/ vaccination in whom the differentiation between the vaccine side effect and long-COVID manifestation was quite challenging. Long-term follow-up studies in large population seems essential to outline the role of long-COVID and vaccination regarding persistent complications.


Subject(s)
COVID-19 Vaccines , COVID-19 , Post-Acute COVID-19 Syndrome , Adult , Female , Humans , Male , Middle Aged , COVID-19/prevention & control , COVID-19/epidemiology , COVID-19 Vaccines/adverse effects , COVID-19 Vaccines/administration & dosage , Immunization, Secondary , Iran/epidemiology , SARS-CoV-2 , Vaccination/adverse effects , Vaccination/statistics & numerical data
9.
J Int Med Res ; 52(5): 3000605241247706, 2024 May.
Article in English | MEDLINE | ID: mdl-38717041

ABSTRACT

OBJECTIVE: To systematically review the reported cases of Creutzfeldt-Jakob disease (CJD) in Iran. METHODS: A comprehensive literature review of CJD cases in Iran was undertaken using the PubMed®, Scopus® and Google Scholar databases. In addition, the Iranian database MagIran was searched for Persian language reports. Case selection used the following criteria: (i) patients of Iranian origin; (ii) publication in peer-reviewed journals or reputable medical databases; (iii) a definitive diagnosis of CJD based on established diagnostic criteria. RESULTS: Thirteen cases from twelve reports were included in this systematic review. The majority of the cases were female (11 of 13; 84.6%). The mean ± SD age of patients at hospital admission was 59.38 ± 7.44 years. The findings of the case review suggested that the prevalence of CJD in Iran is not fully established. CJD may be misdiagnosed alongside other clinical signs. The most prevalent early indications of the disease were psychiatric and neurological in nature. A considerable delay in diagnosis was observed in some cases and there was a shortage of brain autopsy records. CONCLUSION: Efforts to improve diagnostic capabilities, promote awareness and establish monitoring systems are necessary for managing the challenges of providing an early diagnosis of CJD in Iran.


Subject(s)
Creutzfeldt-Jakob Syndrome , Creutzfeldt-Jakob Syndrome/diagnosis , Creutzfeldt-Jakob Syndrome/epidemiology , Creutzfeldt-Jakob Syndrome/pathology , Humans , Iran/epidemiology , Female , Male , Middle Aged , Aged , Brain/pathology , Brain/diagnostic imaging , Prevalence
10.
Sci Rep ; 14(1): 10604, 2024 05 08.
Article in English | MEDLINE | ID: mdl-38719879

ABSTRACT

Neoplasm is an umbrella term used to describe either benign or malignant conditions. The correlations between socioeconomic and environmental factors and the occurrence of new-onset of neoplasms have already been demonstrated in a body of research. Nevertheless, few studies have specifically dealt with the nature of relationship, significance of risk factors, and geographic variation of them, particularly in low- and middle-income communities. This study, thus, set out to (1) analyze spatiotemporal variations of the age-adjusted incidence rate (AAIR) of neoplasms in Iran throughout five time periods, (2) investigate relationships between a collection of environmental and socioeconomic indicators and the AAIR of neoplasms all over the country, and (3) evaluate geographical alterations in their relative importance. Our cross-sectional study design was based on county-level data from 2010 to 2020. AAIR of neoplasms data was acquired from the Institute for Health Metrics and Evaluation (IHME). HotSpot analyses and Anselin Local Moran's I indices were deployed to precisely identify AAIR of neoplasms high- and low-risk clusters. Multi-scale geographically weight regression (MGWR) analysis was worked out to evaluate the association between each explanatory variable and the AAIR of neoplasms. Utilizing random forests (RF), we also examined the relationships between environmental (e.g., UV index and PM2.5 concentration) and socioeconomic (e.g., Gini coefficient and literacy rate) factors and AAIR of neoplasms. AAIR of neoplasms displayed a significant increasing trend over the study period. According to the MGWR, the only factor that significantly varied spatially and was associated with the AAIR of neoplasms in Iran was the UV index. A good accuracy RF model was confirmed for both training and testing data with correlation coefficients R2 greater than 0.91 and 0.92, respectively. UV index and Gini coefficient ranked the highest variables in the prediction of AAIR of neoplasms, based on the relative influence of each variable. More research using machine learning approaches taking the advantages of considering all possible determinants is required to assess health strategies outcomes and properly formulate policy planning.


Subject(s)
Machine Learning , Neoplasms , Socioeconomic Factors , Humans , Iran/epidemiology , Cross-Sectional Studies , Incidence , Neoplasms/epidemiology , Neoplasms/etiology , Geographic Information Systems , Risk Factors , Female , Male , Environmental Exposure/adverse effects
11.
Sci Rep ; 14(1): 10493, 2024 05 07.
Article in English | MEDLINE | ID: mdl-38714819

ABSTRACT

The pattern of poisoning varies in different societies. In this study, we investigated the clinical-epidemiological features and outcomes of poisoned patients based on the substances involved, whether pharmaceutical or non- pharmaceutical toxins. This cross-sectional study involved a retrospective chart review of all poisoned patients who presented to the poisoning emergency hospital in the center of Iran between January 2015 and December 2019. We collected data on socio-demographics, the nature of the poisoning, and the outcomes. Backward stepwise binary regression analysis was conducted to predict the mortality. Throughout the study period, 5777 patients with acute poisoning met the inclusion criteria. Of these, 3524 cases (61%) were attributed to pharmaceutical, and 2253 cases (39%) were due to non-pharmaceutical poisoning. The majority of pharmaceutical poisonings (82.9%) were intentional, whereas non-pharmaceutical poisonings accounted for 46.2% of intentional exposures (P < 0.001). Patients with non-pharmaceutical poisoning were predominantly men, older in age, and had a history of addiction compared to those with pharmaceutical poisoning (P < 0.001). In binary logistic regression analysis, patients poisoned by non-pharmaceutical substances had a significantly higher risk of mortality [Odds ratio, 3.14; (95% CI 1.39-7.10); P = 0.006] compared to those poisoned by pharmaceutical substances (P < 0.001). The pattern of poisoning differs in terms of age and gender when comparing pharmaceutical to non-pharmaceutical poisoning. Patients poisoned by non-pharmaceutical may have a worse outcome compared to those poisoned by pharmaceutical substances.


Subject(s)
Poisoning , Humans , Iran/epidemiology , Male , Female , Adult , Poisoning/epidemiology , Middle Aged , Cross-Sectional Studies , Retrospective Studies , Young Adult , Emergency Service, Hospital , Aged , Adolescent , Referral and Consultation
12.
BMC Public Health ; 24(1): 1256, 2024 May 07.
Article in English | MEDLINE | ID: mdl-38714969

ABSTRACT

OBJECTIVES: Exposure to cigarette smoke introduces a large amount of nicotine into the bloodstream through the lungs. So, smoking can be a risk factor for many diseases. The present study was conducted to investigate the effect of active and passive cigarette smoke on the blood lipid profile and dyslipidemia. METHODS: This cross-sectional study was performed on 5052 individuals who participated in the recruitment phase of the Shahedieh cohort study. A logistic regression model was used to investigate the relationship between smoking exposure status and lipid profiles. RESULTS: The prevalence of abnormal low-density lipoprotein-cholesterol (LDL-C), abnormal HDL-C, abnormal total cholesterol (TC), abnormal triglyceride (TG), and dyslipidemia were 254 (5.00%), 562 (11.10%), 470 (9.30%), 1008 (20.00%), and 1527 (30.20%), respectively. Adjusting for confounders, it was observed that current smokers had higher odds of having abnormal HDL-C [OR (95% CI), 2.90 (2.28-3.69)], abnormal TG [OR (95% CI), 1.71 (1.38-2.13)] and dyslipidemia [OR (95% CI), 1.86 (1.53-2.25)]. Ex-smokers also had greater odds of abnormal HDL-C [OR (95% CI), 1.51 (1.06-2.16)] compared to non-smokers who were not exposed to cigarette smoke. CONCLUSIONS: The findings indicated that current smokers had higher TG and lower HDL. So, necessary measures should be taken to reduce smoking. The findings also showed that the prevalence of abnormal TG and HDL in ex-smokers was lower than in current smokers. Therefore, the existence of incentive policies to quit smoking seems necessary.


Subject(s)
Dyslipidemias , Lipids , Tobacco Smoke Pollution , Humans , Male , Female , Cross-Sectional Studies , Adult , Middle Aged , Tobacco Smoke Pollution/adverse effects , Tobacco Smoke Pollution/statistics & numerical data , Tobacco Smoke Pollution/analysis , Dyslipidemias/epidemiology , Lipids/blood , Iran/epidemiology , Cohort Studies , Risk Factors , Cigarette Smoking/epidemiology , Smoking/epidemiology , Triglycerides/blood , Cholesterol, HDL/blood , Prevalence
13.
Accid Anal Prev ; 202: 107603, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38701559

ABSTRACT

Chain reaction crashes (CRC) begin with a two-vehicle collision and rapidly intensify as more vehicles get directly involved. CRCs result in more extensive damage compared to two-vehicle crashes and understanding the progression of a two-vehicle collision into a CRC can unveil preventive strategies that have received less attention. In this study, to align with recent research direction and overcome the limitations of econometric and machine learning (ML) modelling, a hybrid approach is adopted. Moreover, to tackle the existing challenges in crash analysis, addressing unobserved heterogeneity in ML, and exploring random parameter effects and interactions more precisely, a new approach is proposed. To achieve this, a hybrid random parameter logit model and interpretable ML, joint with prior latent class clustering is implemented. Notably, this is the first attempt at using a clustering with hybrid modeling. The significant risk factors, their critical values, distinct effects, and interactions are interpreted using both marginal effects and the SHAP (SHapley Additive exPlanations) method across clusters. This study utilizes crash, traffic, and geometric data from eleven suburban freeways in Iran collected over a 5-year period. The overall results indicate an increased risk of CRC in congested traffic, higher traffic variation, and on horizontal curves combined with longitudinal slopes. Some parameters exhibit distinct or fluctuating effects, which are discussed across different conditions or considering interactions. For instance, during nighttime, heightened congestion on 2-lane freeways, increased traffic variation in less congested conditions, and adverse weather combined with horizontal curves and slopes pose risks. During daytime, increased traffic variation within highly congested sections, higher proportion of heavy vehicle traffic in moderately congested sections, and two lanes in each direction coupled with curves, elevate the levels of risk. The results of this study provide a better understanding of risk factors impact across different conditions, which are usable for policy makers.


Subject(s)
Accidents, Traffic , Machine Learning , Accidents, Traffic/statistics & numerical data , Humans , Cluster Analysis , Iran/epidemiology , Logistic Models , Risk Factors
14.
PLoS One ; 19(5): e0303043, 2024.
Article in English | MEDLINE | ID: mdl-38722835

ABSTRACT

INTRODUCTION: The COVID-19 pandemic posed significant risks to children worldwide. This study aimed to assess the COVID-19 protection status of children and explored the relationship between household socio-economic status and COVID-19 morbidity and preventive measures, including vaccination and mask-wearing, in two cities in Iran. METHOD: A population-based cross-sectional study was conducted from July to October 2022 among 7 to 18-year-old children and their families in Tehran and Karaj. A total of 3,022 samples were selected using stratified multistage cluster sampling. Data were collected through interviews with children and adults, using questionnaires and was analyzed with Stata software version 14. RESULTS: The analysis focused on 2,878 children with a median age of 12. Over half (54%) reported that the pandemic negatively affected their family's financial status, with 45% describing its impact on children's needs as negative or very negative. Just under 50% of respondents consistently wore masks during the study period, and around 54% had received at least one dose of the COVID-19 vaccine. Reasons for not getting vaccinated included concerns about side effects, ineligibility for the target age group, and overcrowding at vaccination sites. The odds of not getting vaccinated were significantly lower for children aged 15-18, with boys more likely to refuse vaccination than girls. CONCLUSION: The financial impact of the pandemic in Iran affected families' ability to meet their children's needs. Moreover, low vaccination acceptance rates increased children's vulnerability to health problems and contributed to COVID-19 infections. Efforts should be made to increase vaccination acceptance, particularly among immigrant populations.


Subject(s)
COVID-19 Vaccines , COVID-19 , SARS-CoV-2 , Vaccination , Humans , COVID-19/prevention & control , COVID-19/epidemiology , Iran/epidemiology , Adolescent , Child , Male , Female , Cross-Sectional Studies , Vaccination/statistics & numerical data , COVID-19 Vaccines/administration & dosage , COVID-19 Vaccines/therapeutic use , Prevalence , Socioeconomic Factors , Pandemics/prevention & control , Surveys and Questionnaires
15.
PLoS One ; 19(5): e0302847, 2024.
Article in English | MEDLINE | ID: mdl-38709796

ABSTRACT

Heat exposure exceeding the ISO7243:1989 standard limit can contribute to health problems among employees in a variety of workplaces. Ignoring heat standard requirements in hot working conditions such as bakeries results in physiologic and health problems, as well as an elevated risk of later illnesses. In this analytical case-control study, the serum levels of four inflammatory factors (interleukin-1 beta, interleukin-6, tumor necrosis factor-α, and C-reactive protein) were assessed using an enzyme-linked immunosorbent assay. 105 male artisan bakers (in four job classifications in bakeries and staff) were compared based on demographic characteristics and inflammatory factors. The findings of the study showed correlations between serum interleukin-1ß, interleukin-6, and C-reactive protein levels and thermal exposure in the occupational environment and employment type. Moreover, some differences in serum level of interleukin-1ß and job type were observed. Heat overexposure affected the increase of interleukin-1ß and C-reactive protein secretion. As a result of years of working in high-temperature conditions, inflammation can lead to subsequent diseases in workers. To protect their health from this occupational hazard, additional safeguards are needed. Our recommendations could also be applied to overly hot work environments that may cause heat stress in workers.


Subject(s)
C-Reactive Protein , Cytokines , Occupational Exposure , Humans , Male , Iran/epidemiology , Adult , Occupational Exposure/adverse effects , Case-Control Studies , Cytokines/blood , C-Reactive Protein/metabolism , C-Reactive Protein/analysis , Interleukin-1beta/blood , Middle Aged , Hot Temperature , Heat Stress Disorders/blood , Heat Stress Disorders/epidemiology , Interleukin-6/blood , Inflammation/blood , Occupational Diseases/blood , Occupational Diseases/epidemiology , Heat-Shock Response
16.
BMC Geriatr ; 24(1): 393, 2024 May 03.
Article in English | MEDLINE | ID: mdl-38702602

ABSTRACT

BACKGROUND: Depression is a multifaceted condition with a high prevalence and burden to society. Handgrip strength (HGS) and gait speed (GS) are indices of physical health, which is linked to mental health. Previous studies have shown heterogeneity among countries in the association of physical parameters and depression. In this study, we aimed to investigate the association of HGS and GS with depressive symptoms in older adults. METHODS: This is a cross-sectional study analyzing data from the Birjand Longitudinal Aging Study, a cohort of community-dwelling older adults (≥ 60 years old). Depressive symptoms were assessed by the nine-item Patient Health Questionnaire. HGS was measured with a hand dynamometer in a sitting position, and GS was estimated by a 15-foot walk test at usual pace. RESULTS: Compared to participants in the first quartile, those in the second quartile of HGS had significantly lower odds of suffering from depressive symptoms, while GS was not significantly associated with depressive symptoms. A higher HGS was associated with a lower risk of moderate depressive symptoms, while a higher GS was related to a lower risk of moderately severe and severe symptoms. CONCLUSIONS: Our findings suggest that older people residing in Birjand, Iran with a moderate HGS are less likely to suffer from depressive symptoms than those with lower HGS.


Subject(s)
Depression , Hand Strength , Independent Living , Walking Speed , Humans , Male , Aged , Female , Depression/epidemiology , Depression/psychology , Depression/physiopathology , Depression/diagnosis , Walking Speed/physiology , Hand Strength/physiology , Longitudinal Studies , Cross-Sectional Studies , Middle Aged , Iran/epidemiology , Aged, 80 and over , Aging/physiology , Aging/psychology
17.
BMC Surg ; 24(1): 131, 2024 May 03.
Article in English | MEDLINE | ID: mdl-38702645

ABSTRACT

BACKGROUND: Surgical resection of colorectal cancer liver metastasis (CRLM) has been associated with improved survival in these patients. The purpose of this study was to investigate the usefulness of liver metastasectomy, also finding independent factors related to survival after liver metastasectomy. METHODS: In a retrospective study, all patients with CRLM who underwent resection of liver metastases between 2012 and 2022 at Imam Khomeini Hospital Complex in Tehran, Iran, were enrolled. All patients were actively followed based on clinicopathologic and operative data. RESULTS: A total of 248 patients with a median follow-up time of 46 months (Range, 12 to 122) were studied. Eighty-six patients (35.0%) underwent major hepatectomy, whereas 160 (65.0%) underwent minor hepatectomy. The median overall survival was 43 months (Range, 0 to 122 months), with estimated 1-, 3- and 5-year overall survival rates of 91%, 56%, and 42%, respectively. Multivariate analysis demonstrated that a metastasis size > 6 cm, major hepatectomy, rectum as the primary tumor site, and involved margin (< 1 mm) were independent factors associated with decreased overall survival (OS). CONCLUSION: Surgical resection is an effective treatment for patients with CRLM that is associated with relatively favorable survival. A negative margin of 1 mm seems to be sufficient for oncological resection.


Subject(s)
Colorectal Neoplasms , Hepatectomy , Liver Neoplasms , Humans , Liver Neoplasms/secondary , Liver Neoplasms/surgery , Liver Neoplasms/mortality , Colorectal Neoplasms/pathology , Colorectal Neoplasms/mortality , Colorectal Neoplasms/surgery , Male , Female , Hepatectomy/methods , Retrospective Studies , Iran/epidemiology , Middle Aged , Aged , Adult , Survival Rate , Aged, 80 and over , Follow-Up Studies , Treatment Outcome , Metastasectomy
18.
BMC Cancer ; 24(1): 579, 2024 May 11.
Article in English | MEDLINE | ID: mdl-38734656

ABSTRACT

INTRODUCTION: Knowledge, attitudes, and practices are essential measures for planning and evaluating cancer control programs. Little is known about these in Iran. METHODS: We conducted a population-based interview survey of adults aged 30-70 using the Farsi version of the Awareness and Beliefs about Cancer questionnaire in the capital province of Tehran, Iran, 2019. We calculated weighted estimates of levels of cancer knowledge, attitudes, and practices to allow for different selection probabilities and nonresponse. We used multivariate logistic regression to understand demographic factors associated with bowel, cervix, and breast screening practices. RESULTS: We interviewed 736 men and 744 women. The mean number of recalled cancer warning signs was less than one; 57.7% could not recall any cancer warning signs. Participants recognized 5.6 out of 11 early cancer warning signs and 8.8 of 13 cancer risk factors. Most (82.7%) did not know that HPV infection was a cancer risk factor. Approximately, half had negative attitudes towards cancer treatment, but over 80% had positive attitudes towards the effectiveness of screening for improving survival. Colorectal, breast, and cervical screening rates were 24%, 42%, and 49%, respectively. Higher socioeconomic status increased the odds of taking up screening for cancer. Women aged 60-70 were less likely to report taking up breast and cervical screening than younger women. DISCUSSION: The Iranian population has poor awareness and negative attitudes about cancer, and participation in screening programs is low. Public awareness and early detection of cancer should be promoted in Iran.


Subject(s)
Early Detection of Cancer , Health Knowledge, Attitudes, Practice , Neoplasms , Humans , Female , Male , Iran/epidemiology , Middle Aged , Adult , Aged , Neoplasms/psychology , Neoplasms/epidemiology , Neoplasms/diagnosis , Early Detection of Cancer/psychology , Early Detection of Cancer/statistics & numerical data , Surveys and Questionnaires
19.
J Neonatal Perinatal Med ; 17(2): 161-167, 2024.
Article in English | MEDLINE | ID: mdl-38759028

ABSTRACT

OBJECTIVES: Hypernatremia may facilitate the diffusion of bilirubin through the blood-brain barrier and increase the risk of bilirubin encephalopathy. This study was conducted to compare the prognosis of jaundice infants with those with jaundice and hypernatremia. METHODS: A total of 615 term infants with idiopathic jaundice with or without hypernatremia were enrolled in this cohort study with 24-months follow-up at Ghaem Hospital, Mashhad, Iran, between 2010 and 2022. An in-house questionnaire including the laboratory evaluation and neonatal characteristics was used as the data collection tool. The follow-up of neonatal development status was performed using the Denver test II at 6, 12, 18, and 24 months after discharging from hospital. RESULTS: Normal outcomes were seen in 555 (90.2%) out of 615 studied infants, while 60 cases (9.8%) showed abnormal outcomes. Serum levels of sodium (P = 0.017), bilirubin (P = 0.001), urea (P = 0.024), and creatinine (P = 0.011) as well as hyperthermia (P = 0.046) and unconsciousness (P = 0.005) showed significant differences between the two groups. Approximately 16% of the newborns with both jaundice and hypernatremia, and 9% of those with only jaundice had unfavorable prognoses. Also, bilirubin level had the most predictive power (91.3%). CONCLUSIONS: Our results suggest that hypernatremia or jaundice alone, may affect the prognosis of infants aged 2 years; but jaundice and hypernatremia together, will intensify the developmental problems in jaundice infants. However, the role of hyperbilirubinemia in the incidence of complications is more than hypernatremia.


Subject(s)
Bilirubin , Hypernatremia , Humans , Hypernatremia/blood , Hypernatremia/epidemiology , Hypernatremia/diagnosis , Female , Infant, Newborn , Male , Prognosis , Bilirubin/blood , Iran/epidemiology , Infant , Jaundice, Neonatal/blood , Jaundice, Neonatal/epidemiology , Hyperbilirubinemia, Neonatal/complications , Hyperbilirubinemia, Neonatal/blood , Hyperbilirubinemia, Neonatal/epidemiology , Kernicterus/epidemiology , Kernicterus/blood , Kernicterus/etiology , Follow-Up Studies , Cohort Studies
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