A Review on the Use of Artificial Intelligence in Spinal Diseases

Artificial neural networks (ANNs) have been used in a wide variety of real-world applications and it emerges as a promising field across various branches of medicine. This review aims to identify the role of ANNs in spinal diseases. Literature were searched from electronic databases of Scopus and Medline from 1993 to 2020 with English publications reported on the application of ANNs in spinal diseases. The search strategy was set as the combinations of the following keywords: “artificial neural networks,” “spine,” “back pain,” “prognosis,” “grading,” “classification,” “prediction,” “segmentation,” “biomechanics,” “deep learning,” and “imaging.” The main findings of the included studies were summarized, with an emphasis on the recent advances in spinal diseases and its application in the diagnostic and prognostic procedures. According to the search strategy, a set of 3,653 articles were retrieved from Medline and Scopus databases. After careful evaluation of the abstracts, the full texts of 89 eligible papers were further examined, of which 79 articles satisfied the inclusion criteria of this review. Our review indicates several applications of ANNs in the management of spinal diseases including (1) diagnosis and assessment of spinal disease progression in the patients with low back pain, perioperative complications, and readmission rate following spine surgery; (2) enhancement of the clinically relevant information extracted from radiographic images to predict Pfirrmann grades, Modic changes, and spinal stenosis grades on magnetic resonance images automatically; (3) prediction of outcomes in lumbar spinal stenosis, lumbar disc herniation and patient-reported outcomes in lumbar fusion surgery, and preoperative planning and intraoperative assistance; and (4) its application in the biomechanical assessment of spinal diseases. The evidence suggests that ANNs can be successfully used for optimizing the diagnosis, prognosis and outcome prediction in spinal diseases. Therefore, incorporation of ANNs into spine clinical practice may improve clinical decision making.

Cut-off Value for Body Mass Index in Predicting Surgical Success in Patients with Lumbar Spinal Canal Stenosis

STUDY DESIGN: Case-control. PURPOSE: To determine optimal cut-off value for body mass index (BMI) in predicting surgical success in patients with lumbar spinal canal stenosis (LSCS). OVERVIEW OF LITERATURE: BMI is an essential variable in the assessment of patients with LSCS. METHODS: We conducted a prospective study with obese and non-obese LSCS surgical patients and analyzed data on age, sex, duration of symptoms, walking distance, morphologic grade of stenosis, BMI, postoperative complications, and functional disability. Obesity was defined as BMI of ≥30 kg/m². Patients completed the Oswestry Disability Index (ODI) questionnaire before surgery and 2 years after surgery. Surgical success was defined as ≥30% improvement from the baseline ODI score. Receiver operating characteristic (ROC) analysis was used to estimate the optimal cut-off values of BMI to predict surgical success. In addition, correlation was assessed between BMI and stenosis grade based on morphology as defined by Schizas and colleague in total, 189 patients were eligible to enter the study. RESULTS: Mean age of patients was 61.5±9.6 years. Mean follow-up was 36±12 months. Most patients (88.4%) were classified with grades C (severe stenosis) and D (extreme stenosis). Post-surgical success was 85.7% at the 2-year follow-up. A weak correlation was observed between morphologic grade of stenosis and BMI. Rates of postoperative complications were similar between patients who were obese and those who were non-obese. Both cohorts had similar degree of improvement in the ODI at the 2-year follow-up. However, patients who were non-obese presented significantly higher surgical success than those who were obese. In ROC curve analysis, a cut-off value of ≤29.1 kg/m² for BMI in patients with LSCS was suggestive of surgical success, with 81.1% sensitivity and 82.2% specificity (area under the curve, 0.857; 95% confidence interval, 0.788–0.927). CONCLUSION: This study showed that the BMI can be considered a parameter for predicting surgical success in patients with LSCS and can be useful in clinical practice.

Development and psychometric evaluation of the sexual knowledge and attitudes scale for premarital couples [SKAS-PC]: an exploratory mixed method study

Background: Designing a valid and reliable questionnaire that allows a fair evaluation of sexual knowledge and attitudes and develop a proper sexual educational program is necessary

Objective: The present study was designed to develop and psychometric evaluation of the sexual knowledge and attitudes scale for premarital couples

Materials and Methods: An exploratory mixed method study was conducted in two phases; in the first, in order to develop a questionnaire an item pool was generated on sexual knowledge and attitudes through focus group discussions and individual interviews. In the second phase, the psychometric properties of the questionnaire were examined. For this purpose, face validity, content validity as well as construct validity were conducted. Reliability was assessed by the Cronbach's alpha coefficient to assess internal consistency and test-retest reliability

Results: In the first phase an item pool with 88 questions was generated [sexual knowledge 45 items and sexual attitudes 43 items]. In the second phase, the number of final items reduced to 33 and 34 items of sexual knowledge and sexual attitudes respectively, through exploratory factor analysis [EFA]. Five factors for sexual knowledge and six factors for sexual attitudes identified by EFA. The Cronbach's alpha coefficient for two sections was 0.84 and 0.81 respectively. The test- retest correlations for sexual knowledge and sexual attitude was 0.74 and 0.82 respectively

Conclusion: The findings suggest that the Sexual Knowledge and Attitudes Scale for Premarital Couples is a valid and reliable instrument. Further studies are needed to establish stronger psychometric properties for the questionnaire

Validation of the Iranian Version of the ECOS-16 Questionnaire in Patients with Osteoporotic Vertebral Fractures

STUDY DESIGN: Prospective clinical study. PURPOSE: To translate and validate the Quality of Life Questionnaire of the European Foundation for Osteoporosis (ECOS-16) in patients with osteoporotic vertebral fractures in Iran. OVERVIEW OF LITERATURE: It is important to assess the psychometric properties of instruments measuring patient-reported outcomes. METHODS: The translation was performed using the backward-forward translation method. The final version was generated by consensus among the translators. Every woman who had a T-score of 0.70 for all scales. Test-retest reliability as indicated by intraclass correlation coefficient was found to be 0.85 (0.68–0.91). Additionally, the correlation of each item with its hypothesized domain of the ECOS-16 showed acceptable results, suggesting that the items had a substantial relationship with their own domains. Further analysis also indicated that the questionnaire was responsive to change (effect size, 0.85; standardized response mean, 0.93) (p<0.001). Significant correlations existed between scores of similar subscales of ECOS-16 and SF-36 (p<0.001). CONCLUSIONS: ECOS-16 is an acceptable, reliable, valid, and responsive measure to assess the quality of life in patients with osteoporotic vertebral fractures.

An Iranian Version of the Fukushima Lumbar Spinal Stenosis Scale (FLS-25): A Validation Study

STUDY DESIGN: Cross-sectional study. PURPOSE: To translate and validate the Fukushima lumbar spinal stenosis (LSS) scale 25 (FLS-25) for use in Iran. OVERVIEW OF LITERATURE: Tools measuring patient-reported outcomes should satisfy certain psychometric properties. METHODS: FLS-25 is a self-administered scale for evaluating symptoms of LSS. A forward-backward procedure was applied to translate the questionnaire from English into Persian. A sample of patients with LSS completed the questionnaire at two points in time: once before surgery and once 6 months after the surgery. The Neurogenic Claudication Outcome Score (NCOS) was also used for assessment. The psychometric properties of FLS-25 were evaluated for internal consistency, test-retest and interobserver reliabilities, responsiveness to change, known-group comparison, and convergent validity. RESULTS: In all, 131 patients were included in the study. The mean age of the patients was 61.4 (standard deviation, 11.1) years. The Cronbach's alpha coefficient for FLS-25 was 0.89. Test-retest reliability as carried out by the intraclass correlation coefficient was 0.94 (95% confidence interval, 0.95). Interobserver agreement as measured by the kappa statistics also was found to be acceptable (kappa value, 0.88), and validity was found to be satisfactory. The instrument was able to discriminate between the subgroups of patients who differed in symptom severity. The correlation between FLS-25 and NCOS scores was excellent, indicating good convergent validity (r=0.82, p<0.001). The results also indicated that the instrument was responsive to change (p<0.001). CONCLUSIONS: The Iranian version of FLS-25 performed well, and the findings suggest that it is a valid measure of symptom severity in LSS patients.

An Outcome Measure of Functionality and Pain in Patients with Low Back Disorder: A Validation Study of the Iranian version of Low Back Outcome Score

STUDY DESIGN: Cross-sectional study. PURPOSE: This study aimed to cross-culturally translate and validate the low back outcome score (LBOS) in Iran. OVERVIEW OF LITERATURE: Lumbar disc hernia (LDH) is the most common diagnoses of low back pain and imposes a heavy burden on both individual and society. Instruments measuring patient reported outcomes should satisfy cetain psychometric properties. METHODS: The translation and cross-cultural adaptation of the original questionnaire was performed using Beaton's guideline. A total of 163 patients with LDH were asked to respond to the questionnaire at three points in time: preoperative and twice within 1-week interval after surgery assessments. The Oswestry disabilty index (ODI) was also completed. The internal consistency, test-retest, convergent validity, and responsiveness to change were assessed. Responsiveness to change also was assessed comparing patients' pre- and postoperative scores. RESULTS: The mean age of the cohort was 49.8 years (standard deviation=10.1). The Cronbach's alpha coefficients for the LBOS at preoperative and postoperative assessments ranged from 0.77 to 0.79, indicating good internal consistency. Test-retest reliability as performed by intraclass correlation coefficient was found to be 0.82 (0.62–0.91). The instrument discriminated well between sub-groups of patients who differed in the Finneson-Cooper score. The ODI correlated strongly with the LBOS score, lending support to its good convergent validity (r=––0.83; p<0.001). Further analysis also indicated that the questionnaire was responsive to change (p<0.001). CONCLUSIONS: The Iranian version of LBOS performed well and the findings suggest that it is a valid measure of back pain treatment evaluation among LDH patients.

Quality of Life among Iranian Infertile Women in Postmenopausal Period: A Cross-sectional Study

OBJECTIVES: Infertility has a significant impact on a women's quality of life (QOL). Infertile women face with physical and mental challenges during their postmenopausal period. Therefore, the present study aimed to evaluate the QOL among Iranian infertile women in the postmenopausal period using a valid and reliable instrument. METHODS: In this cross-sectional study both snowball and social networking methods were used for sampling. Two demographic and QOL questionnaire were used for data collection. The QOL questionnaire includes 41 items which measure the QOL in five dimensions: socioeconomic, mental health, religiousness, physical health and future imagining. Data analyzed was carried out in IBM SPSS ver. 20.0 using descriptive statistic, χ2 test, and Fisher test. A P value of 0.01 or less was considered significant. RESULTS: Overall 211 eligible participants were studied. Some participants obtained full score on socioeconomic, religiousness, physical health and future imagining dimensions of QOL but none on the mental health dimension of the QOL. Only, 6.6% of study participants have a good QOL. There was a significant relationship between age and financial provider whit status of QOL. CONCLUSION: Most Iranian infertile women in the postmenopausal period have poor or moderate QOL. Therefore, improving the QOL among these women should be considered.

Outcome Measure of Pain in Patients with Lumbar Disc Herniation: Validation Study of the Iranian version of Pain Sensitivity Questionnaire

STUDY DESIGN: Cross-sectional. PURPOSE: To translate and culturally adapt an Iranian version of the Pain Sensitivity Questionnaire (PSQ) in Iran. OVERVIEW OF LITERATURE: Instruments measuring patient reported outcomes should satisfy certain psychometric properties. METHODS: The PSQ was translated following cross-cultural adaptation guidelines. A total of 101 patients with lumbar disc herniation (LDH), and 39 healthy cases were included in the study. All participants completed the PSQ and the Pain Catastrophizing Scale (PCS). The internal consistency, test-retest reliability, known group comparison, criterion validity and item-scale correlations were assessed. RESULTS: The mean age of participants was 51.7 years. Reliability, validity and correlation of PSQ and PCS showed satisfactory results. Cronbach's alpha coefficients were 0.81 for PSQ-total, 0.82 for PSQ-minor, and 0.82 for PSQ-moderate. The intraclass correlation coefficients value was 0.84 (0.616-0.932) indicating an excellent test-retest reliability. The instrument discriminated well between sub-groups of patients who differed in a standard predictive measure of LDH surgery (the Finneson-Cooper score). Total PSQ were also significantly correlated with the total scores of the PCS, lending support to its good convergent validity. Additionally, the correlation of each item with its hypothesized domain on the PSQ indicated acceptable results, suggesting that the items had a substantial relationship with their own domains. CONCLUSIONS: The adapted Iranian PSQ is a valid and reliable questionnaire for the assessment of pain in patients with LDH.

Outcome Measure of Pain in Patients with Lumbar Disc Herniation: Validation Study of the Iranian version of Pain Sensitivity Questionnaire

STUDY DESIGN: Cross-sectional. PURPOSE: To translate and culturally adapt an Iranian version of the Pain Sensitivity Questionnaire (PSQ) in Iran. OVERVIEW OF LITERATURE: Instruments measuring patient reported outcomes should satisfy certain psychometric properties. METHODS: The PSQ was translated following cross-cultural adaptation guidelines. A total of 101 patients with lumbar disc herniation (LDH), and 39 healthy cases were included in the study. All participants completed the PSQ and the Pain Catastrophizing Scale (PCS). The internal consistency, test-retest reliability, known group comparison, criterion validity and item-scale correlations were assessed. RESULTS: The mean age of participants was 51.7 years. Reliability, validity and correlation of PSQ and PCS showed satisfactory results. Cronbach's alpha coefficients were 0.81 for PSQ-total, 0.82 for PSQ-minor, and 0.82 for PSQ-moderate. The intraclass correlation coefficients value was 0.84 (0.616-0.932) indicating an excellent test-retest reliability. The instrument discriminated well between sub-groups of patients who differed in a standard predictive measure of LDH surgery (the Finneson-Cooper score). Total PSQ were also significantly correlated with the total scores of the PCS, lending support to its good convergent validity. Additionally, the correlation of each item with its hypothesized domain on the PSQ indicated acceptable results, suggesting that the items had a substantial relationship with their own domains. CONCLUSIONS: The adapted Iranian PSQ is a valid and reliable questionnaire for the assessment of pain in patients with LDH.

Outcome Measures of Functionality, Social Interaction, and Pain in Patients with Cervical Spondylotic Myelopathy: A Validation Study for the Iranian Version of the Copenhagen Neck Functional Disability Scale

STUDY DESIGN: Cross-sectional. PURPOSE: To translate and validate the Iranian version of the Copenhagen Neck Functional Disability Scale (CNFDS). OVERVIEW OF LITERATURE: Instruments measuring patient-reported outcomes should satisfy certain psychometric properties. METHODS: Ninety-three cases of cervical spondylotic myelopathy were entered into the study and completed the CNFDS pre and postoperatively at the 6 month follow-up. The modified Japanese Orthopedic Association Score was also completed. The internal consistency, test-retest, convergent validity, construct validity (item scale correlation), and responsiveness to change were assessed. RESULTS: Mean age of the patients was 54.3 years (standard deviation, 8.9). The Cronbach alpha coefficient was satisfactory (alpha=0.84). Test-retest reliability as assessed by the intraclass correlation coefficient analysis was 0.95 (95% confidence interval, 0.92-0.98). The modified Japanese Orthopedic Association score correlated strongly with the CNFDS score, lending support to its good convergent validity (r=-0.80; p<0.001). Additionally, the correlation of each item with its hypothesized domain on the CNFDS was acceptable, suggesting that the items had a substantial relationship with their own domains. These results also indicate that the instrument was responsive to change (p<0.0001). CONCLUSIONS: The findings suggest that the Iranian version of the CNFDS is a valid measure to assess functionality, social interaction, and pain among patients with cervical spondylotic myelopathy.

Health-related quality of life in polycystic ovary syndrome patients: a systematic review

Increasing attention to the concept of polycystic ovary syndrome [PCOS] health-related quality of life has led to the development of tool that aims to measure this concept. The purpose of this study was to conduct a systematic review of psychometric properties of the PCOS health-related quality of life questionnaire. A search of database [Pubmed, PsychInfo, CINAHL, CENTRAL, Scopus and SID] from January1998 to December 2013 yielded 6152 references of which 27 papers remained after review of the titles and abstracts. The reviewers used structural tools to analyze the articles, critically appraise papers, and extract the data. Finally, eight papers met the full inclusion criteria. A search of database [Pubmed, PsychInfo, CINAHL, CENTRAL, Scopus and SID] from January1998 to December 2013 yielded 6152 references of which 27 papers remained after review of the titles and abstracts. The reviewers used structural tools to analyze the articles, critically appraise papers, and extract the data. Finally, eight papers met the full inclusion criteria. The PCOSQ/MPCOSQ showed acceptable content and construct validity, reliability and internal consistency. However, some other properties, particularly those related to factor and longitudinal validity, absolute error of measurement, minimal clinically important difference and responsiveness still need to be evaluated

impact of polycystic ovary syndrome on the health-related quality of life: a systematic review and meta-analysis

Polycystic ovary syndrome [PCOS] has been shown to cause a reduction in health-related quality of life [HRQOL]. However, the relative degree of impairment in each domain differed among samples, and it was not clear which aspect of disease-specific HRQOL [modified polycystic ovary syndrome health-related quality of life questionnaire] was most negatively affected. To systematically review the effects of PCOS on specific domains of HRQOL. Literature search using search engine of database [PubMed, PsychInfo, CINAHL, CENTRAL, and Scopus] between 1998 to December 2013 yields 6 relevant publications. Pairs of raters used structural tools to analyze these articles, through critical appraisal and data extraction. The scores of each domain of polycystic ovarian syndrome questionnaire [PCOSQ] or modified version [MPCOSQ] of 1140 women with PCOS were used in meta-analysis. The combine mean of emotional [4.40; 95% CI 3.77-5.04], infertility [4.13; 95% CI 3.81-4.45] and weight [3.88; 95% CI 2.33-5.42] dimensions were better, but menstruation [3.84; 95% CI 3.63-4.04] and hirsutism [3.81; 95% CI 3.26-4.35] domains were lower than the mean score of PCOSQ/MPCOSQ in related dimension. The meta-analysis showed that the most affected domains in specific HRQOL were hirsutism and menstruation. Based on these findings, we recommend healthcare providers to be made aware that HRQOL impairment of PCOS is mainly caused by their hirsutism and menstruation, which requires appropriate management

effect of sexual health education program on women sexual function in Iran

Sexual dysfunction is the most common disorder in women. According to the WHO, sexual education programs are considered as a need. Therefore, this study was designed to investigate the effect of educational program on sexual function in women with sexual dysfunction. This randomized trial, was conducted in 2013 on 90 married women by convenient sampling in Qazvin, central Iran. The demographic, Female Sexual Function Index [FSFI], and Beck's Depression Inventory [BDI] questionnaires were completed during structured interviews. After completing the sample size, subjects were divided randomly into two groups by using the table of random numbers [educational and control groups], then respectively received an educational intervention in the four sessions with one week interval and routine program offered by the center and following-up was done with refilling questionnaires 8 weeks after intervention. Sexual function improved after sex educational programs in all dimensions [sexual desire [P=0.006], sexual exciting [P=0.006], vaginal moisture [P=0.002], sexual satisfaction [P=0.011], and total score of sexual function [P=0.001]. Considering the importance role of sexual function in family strength, health, and development, it can be claimed that educational sex programs can help practitioners to improve sexual function of married women with sexual dysfunction

Sexual functioning among married Iranian women with polycystic ovary syndrome

This study aimed to assess sexual functioning among women with polycystic ovary syndrome [PCOS] in Iran. A cross-sectional study was conducted to ascertain factors related to sexual functioning in 300 PCOS patients attending to the private practice centers in Kashan, Isfahan Province, Iran, from May to October 2012. The Female Sexual Function Index [FSFI] was used to measure sexual functioning. Moreover, the socio-demographic details and clinical information of PCOS including obesity, hirsutism, acne, menstrual cycle disturbances, infertility and endocrine profile were recorded for each patient. Overall the prevalence of female sexual dysfunction [FSD] was 16.6%. In particular patients indicated poorer sexual functioning for the desire [48.3%] and the arousal [44.7%] subscales. Multiple logistic regression analysis suggested patients with lower educational level [OR: 2.94; 95% CI: 1.46-5.92] and irregular menstrual status [OR: 4.61; 95% CI: 1.93-11] were more likely to report sexual dysfunction. The findings suggest that desire and arousal were the most prevalent sexual disorders reported in this patient population. In addition, findings suggested that women with limited or no formal education and a history of menstrual irregularities were the most likely to report female sexual dysfunction. Further investigations are needed to examine female sexual functioning among women with PCOS, to educate their health care providers, and to develop therapeutic interventions

Adherence and attrition in a web-based lifestyle intervention for people with metabolic syndrome

The aim of this study was to determine adherence and attrition rates in a lifestyle intervention for people with metabolic syndrome. Adherence and attrition data from a randomized controlled trial were collected. Participants were classified as adherence group if they completed assessments at 3 and 6 months follow-up and as attrition group if they did not. Physical activity and quality of life was measured using the International Physical Activity Questionnaire [IPAQ] and the Short Form Health Survey [SF-36]. Generalized Estimating Equations [GEE] was used to explore predictors of attrition. The mean age of participants [n=160] was 44.1 years. Attrition rate in the intervention and control groups at first follow-up were the same [20%]. However, the control group had significantly higher attrition rate [%33.7] compared to the intervention group [%20] at 6 months follow up. Results showed that low educated participants were more likely to not stay in the study than better educated participants [OR=2.95,CI:1.39-6.33,P=0.05]. According with length of the study, attrition was decreased at six month [OR=0.66,CI:0.52-0.83,P<0.001]. Also, some aspects of health-related quality of life contributed to the attrition rate. Those who had higher scores on general health [OR=0.66,CI:0.54-0.97,P=0.023], social functioning [OR=0.44,CI:0.40-0.76,P=0.032], role emotional [OR=0.74,CI:0.54-0.98,P=0.18], vitality [OR=0.55,CI:0.38-0.90,P=0.015] and mental health [OR=0.63,CI:0.45-0.85,P=0.033] were more likely to stay in the study. It remains a concern that Web-based lifestyle programs may fail to reach those who need it most. Participant in the study generally had better quality of life than those who were lost to follow up

Self-confidence in women with and without polycystic ovary syndrome

To compare self-confidence in woman with and without PCOS according to their ages. This comparative study was conducted on 400 women [100 with and 300 without PCOS] in clinics of Shahid Akbar-Abadi and Firouzgar Hospitals, from July 2012 to February 2013. SPSS-16 used for statistical analysis [SPSS; SPSS Inc., Chicago, IL, USA]. This study showed 98% of PCOS and 93% in non-PCOS groups had average self-confidence with scores of 15-25. None of women in PCOS group and 6.7% of non-PCOS group had high self-confidence [score>25]. There was a significant difference between two groups in term of self-confidence level [p< 0.001]. There was no significant difference in self-confidence between age group 30 in both group, but in PCOS group, self-confidence were significantly higher in both age group under 30 [p<0.0001] and 30 and higher [p<0.0001]. Impaired self-confidence in PCOS groups [under 30 and 30 and higher age groups] in comparison with related value of non-PCOS group shows that mental health status in women with PCOS requires urgent psychological attention and support

Modifiable lifestyle risk factors and metabolic syndrome: opportunities for a web-based preventive program

Lifestyle is recognized as a key factor as the cause and management of the metabolic syndrome. The aim of this study was to identify individuals at increased cardiovascular diseases risk and determine main features of lifestyle of participants with metabolic syndrome via internet. The study was conducted from Jun 22 to August 22, 2012 in Tehran, Iran. Recruitment was carried out through the study website. Participants with metabolic syndrome who were interested and met the study criteria were invited for free clinic visits and clinical assessments. Baseline measurements were metabolic syndrome risk factors. Physical activity and dietary intake were measured by international physical activity questionnaire [IPAQ- short form] and the frequency food questionnaire [FFQ] respectively. Metabolic syndrome was defined according to Adult Treatment Panel III diagnostic criteria. Mean [SD] age for men and women were 41.9 [10.4] and 48.1 [7.8] yr respectively. Men were well educated and more likely to participate in the study than women. Men with metabolic syndrome had larger waist circumference [105.5] and lower BMI [29.1] than women with metabolic syndrome [P<0.001]. Approximately 73% of the sample was inactive and 3% of participants had health enhancing physical activity. There were significant differences in the intakes of total fat and cholesterol between men and women [P<0.001]. Because of the high prevalence of metabolic syndrome, national lifestyle modification policies must be developed for population. Web-based healthy lifestyle programs may contribute to the reduction of the metabolic syndrome components

Towards a holistic approach to healthy diet: evidence from Iranian health perception study

The aim of present study was to investigate the relation between the perception of population on healthy diet and lifestyle related behaviors. As part of national study on Iranian Health Perception, a cross-sectional study was carried out in Iran, 2010. A multistage sampling approach was applied to include a representative sample of population aged between 18 and 65 in the study. To collect data a designed questionnaire was administered. In all 27,883 individuals [50.4% women, 48.8% men] were included in the study. The mean age of participants was 34.6 years [SD = 12.8] and most were married [61%]. The findings indicated that Iranian population often pay attention to healthy diet [39.5%], never smoke [74.9%], sometimes were doing exercise [29.5%], felt happy to some extent [39.5%], often care about themselves [47.1%] and rated their health as good [54.5%]. Further analysis of the data showed that increased paying attention to healthy diet was associated with reduced smoking, more exercise, more self-care and happiness, and a better self-rated health status. The findings suggest that a healthy diet and other determinants of lifestyle are very integrated into each other. The efforts for changing any components of lifestyle can potentially change all individual related lifestyle behaviors. Indeed, one of effective strategies in fostering healthy diet is fostering other healthy lifestyles. This holistic approach might help decision-makers to design appropriate interventions in order to influence diet behaviors of people

Health-related quality of life and primi-gravid: a comparative study of natural conception and conception by assisted reproduction technologies [ARTs]

Background: Childbearing for the first time is a unique experience. Quality of life is an important indicator in health studies. This study aimed to assess the quality of life of women who were conceived by ARTs and had successful childbirth for the first time and to compare it with quality of life in women who become pregnant naturally and similarly had successful childbirth for the first time

Materials and Methods: This was a cross sectional comparative study. The accessible sample was recruited from patients attending an infertility clinic and two obstetric and gynecology clinics in Tehran, Iran, during March 2010 to March 2011. In all 276 patients were approached. Of these, 162 women [76 women in natural conception group and 86 women in assisted reproduction technologies group] who met the inclusion criteria were entered into the study. Quality of life was assessed using the 36-item Short Form Health Survey [SF-36]. Women completed the questionnaire at two time points: i. last trimester and ii. first month after delivery. Comparison was made between two groups using Mann-Whitney U test and paired samples t test

Results: Comparing the SF-36 scores between women in natural conception group and ARTs group before childbirth, it was found that natural group had better condition on physical functioning, role limitation due to physical problems, bodily pain and social functioning, while the ARTs group reported better status on general health, vitality, role limitation due to emotional problems, and mental health. However, after childbirth, the ARTs group reported a better condition almost on all measures, except for physical functioning. Comparing differences in obtained scores between two groups before and after childbirth, the results showed that improvements in health related quality of life measures for the ARTs group were greater in all measures, expect for general health

Conclusion: The findings from this study suggest that health-related quality of life was improved in women who became a mother for the first time by either method. Comparing to women who became mother by natural conception, women who received ARTs showed better quality of life from this first successful experience

[Waiting time to visit an endocrinologist in Iran: shortage of workforce or inappropriate distribution of patients?]

Objective [s]: Shortage in human resources is an important challenge for health sector. It is the main cause of demand rationing and queues to receive services. Proper information about the present situation helps to manage queues and waiting time. This study aimed to estimate waiting time to visit an endocrinologist and provide practical solution for its management

Method: This was a cross - sectional study. Samples were selected from participants of the annual Iranian endocrinologist conference, 2008 in Tehran. Twenty four endocrinologist completed the questionnaires. The research tool was a self - administered questionnaire

Results: The study findings showed that the median and mean waiting time of endocrinologists was 15 and 30 days for first visit respectively [0 -135 days]. Number of endocrinologists' activity was the only variable that had positive correlation with waiting time [P= 0.027]. About % 41.7 of endocrinologists had the possibility of increasing their clinical working hours by 10.8 hours per week

Conclusion: Waiting time to visit an endocrinologist seems occurred due to inappropriate distribution of patients and not the shortage of workforce