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2.
Teach Learn Med ; 35(3): 356-367, 2023.
Article in English | MEDLINE | ID: mdl-35491868

ABSTRACT

CONSTRUCT: We compared the quality of clinician-authored and student-authored multiple choice questions (MCQs) using a formative, mock examination of clinical knowledge for medical students. BACKGROUND: Multiple choice questions are a popular format used in medical programs of assessment. A challenge for educators is creating high-quality items efficiently. For expediency's sake, a standard practice is for faculties to repeat items in examinations from year to year. This study aims to compare the quality of student-authored with clinician-authored items as a potential source of new items to include in faculty item banks. APPROACH: We invited Year IV and V medical students at the University of Adelaide to participate in a mock examination. The participants first completed an online instructional module on strategies for answering and writing MCQs, then submitted one original MCQ each for potential inclusion in the mock examination. Two 180-item mock examinations, one for each year level, were constructed. Each consisted of 90 student-authored items and 90 clinician-authored items. Participants were blinded to the author of each item. Each item was analyzed for item difficulty and discrimination, number of item-writing flaws (IWFs) and non-functioning distractors (NFDs), and cognitive skill level (using a modified version of Bloom's taxonomy). FINDINGS: Eighty-nine and 91 students completed the Year IV and V examinations, respectively. Student-authored items, compared with clinician-authored items, tended to be written at both a lower cognitive skill and difficulty level. They contained a significantly higher rate of IWFs (2-3.5 times) and NFDs (1.18 times). However, they were equally or better discriminating items than clinician-authored items. CONCLUSIONS: Students can author MCQ items with comparable discrimination to clinician-authored items, despite being inferior in other parameters. Student-authored items may be considered a potential source of material for faculty item banks; however, several barriers exist to their use in a summative setting. The overall quality of items remains suboptimal, regardless of author. This highlights the need for ongoing faculty training in item writing.


Subject(s)
Education, Medical, Undergraduate , Students, Medical , Humans , Educational Measurement , Faculty , Writing
3.
Am J Manag Care ; 28(10): e388-e391, 2022 10 01.
Article in English | MEDLINE | ID: mdl-36252179

ABSTRACT

OBJECTIVES: To evaluate the effectiveness of a pilot smoking cessation service in an emergency department (ED) clinical observation unit. STUDY DESIGN: A descriptive case series review was undertaken of smoking cessation service patients in the short-stay unit of an acute hospital in Singapore from July 1, 2018, to December 31, 2019. METHODS: Upon admission, ED nurses screen all patients regarding their current smoking status and implement the 5 A's framework, which involves the steps of Ask-Advise-Assess-Assist-Arrange. Patients in the "contemplation" and "preparation" stages were offered the following components: (1) a bedside counseling session by a pharmacist and (2) a follow-up appointment at an outpatient smoking cessation clinic. Postdischarge follow-up telephone calls at 1, 6, and 12 months were carried out as part of the study data collection to obtain abstinence information. RESULTS: Forty-seven patients were included in the study; the majority were male (n = 41; 87.2%). The median numbers of cigarettes smoked per day at baseline, 1 month, 6 months, and 12 months were 14, 5, 3, and 5, respectively. The overall point-prevalence abstinence rates over the same follow-up time points were 26.5%, 38.7%, and 31.3%, respectively. The proportions of patients lost to follow-up at 1 month, 6 months, and 12 months were 27.7%, 34.0%, and 31.9%, respectively. CONCLUSIONS: Given the small sample and high number of uncontactable patients, more research is needed to assess whether the trend toward increasing point-prevalence abstinence rate over time and the trend toward decreasing median number of cigarettes smoked are observed in a larger sample.


Subject(s)
Smoking Cessation , Aftercare , Clinical Observation Units , Counseling , Emergency Service, Hospital , Female , Humans , Male , Patient Discharge
4.
ANZ J Surg ; 91(7-8): 1497-1503, 2021 Jul.
Article in English | MEDLINE | ID: mdl-34013543

ABSTRACT

BACKGROUND: Complicated appendicitis encompasses a spectrum of severity with heterogeneity in definition and substantial variation in care. Enhanced recovery after surgery or 'fast-track' protocols aim to reduce practice variation by standardizing care. These initiatives may improve quality and efficiency of care, preserve resources and expedite discharge. This study aims to evaluate the impact of a standardized Enhanced Recovery Pathway (ERP) on the post-operative recovery of children with a subset of complicated appendicitis termed 'advanced' appendicitis. METHODS: We defined advanced appendicitis as gangrenous or suppurative appendicitis without perforation, contained iatrogenic perforation, or localized purulent fluid. Children with operative findings reflecting these criteria were enrolled in the ERP protocol. Key protocol components include early upgrade of diet, avoidance of intravenous analgesia, abridged intravenous antibiotics, early ambulation and standardized discharge criteria. The study period was May 2018 to June 2019. A historical cohort was used as the comparator group. RESULTS: Outcomes for 44 children treated under the ERP were compared to 44 historical controls. There was a 20% reduction in median post-operative length of stay (1.80 vs. 2.24 days, p = 0.02). Intravenous analgesia was received by fewer patients (6.8% vs. 36.4%, p = 0.01) with significant reduction in antiemetic requirement (p = 0.03). No significant difference in 30-day complication rates was observed. CONCLUSION: Reduced post-operative length of stay and reduction in practice variation were achieved after implementation of a 'fast-track' protocol for children with advanced appendicitis. Additional benefits of this protocol include reduced provision of intravenous morphine analgesia, decreased resource use and cost savings.


Subject(s)
Appendicitis , Anti-Bacterial Agents/therapeutic use , Appendectomy , Appendicitis/drug therapy , Appendicitis/surgery , Child , Gangrene , Humans , Length of Stay , Patient Discharge , Retrospective Studies
5.
ANZ J Surg ; 89(11): 1379-1385, 2019 11.
Article in English | MEDLINE | ID: mdl-30989778

ABSTRACT

BACKGROUND: 'Fast-track' surgery protocols aim to standardize and rationalize post-operative care, with evidence of safety and efficacy in both uncomplicated and complicated childhood appendicitis. Generalization for broader adoption has been limited by variation in protocol design, including specific antibiotic choice, discharge criteria, post-operative monitoring and patient selection. METHODS: A systematic review of the literature was performed to evaluate the current evidence underpinning fast-track protocols for childhood appendicitis and identify areas of consensus and controversy. RESULTS: About 33 studies met the inclusion criteria, including four prospective observational studies, 20 case-control studies, seven cohort studies and two randomized controlled trials studying uncomplicated (n = 9), complicated (n = 18) and mixed cohorts (n = 6). Reduction in length of hospital stay was almost universally reported, with equivalent or improved complication rates. Key themes of protocols included antibiotic choice and duration, discharge criteria and post-operative laboratory and radiographic testing. Rationalized analgesia is an underexplored aspect of protocol design, and a standardized definition of complicated appendicitis remains elusive. CONCLUSION: Standardized care of childhood appendicitis has been shown to be safe and effective in several local and international centres. Next steps include investigation of a complicated appendicitis protocol that integrates rationalized analgesia in appendicectomy recovery, and development of a consistent classification scheme for complicated disease to aid in identification of amenable cohorts.


Subject(s)
Appendectomy/methods , Appendicitis/surgery , Postoperative Care/standards , Acute Disease , Adolescent , Anti-Bacterial Agents/therapeutic use , Case-Control Studies , Child , Child, Preschool , Clinical Protocols , Humans , Infant , Length of Stay , Observational Studies as Topic , Patient Discharge , Perioperative Period/standards , Prospective Studies , Randomized Controlled Trials as Topic , Safety , Treatment Outcome , Young Adult
6.
Ultrason Sonochem ; 53: 25-43, 2019 May.
Article in English | MEDLINE | ID: mdl-30594523

ABSTRACT

This study investigates the feasibility of achieving a modified rough rice air-drying with ultrasound intervention (US) set at 21 kHz frequency. The process was carried out using an ultrasound assisted convective dryer and analyzed in terms of drying time, energy consumption (EC), evaporation rate (ER), broken kernel (BK), water activity (aw), vitamin B3 (niacin), and total phenolic content (TPC). The lab-scale dryer was set to transmit energy at power levels of 30, 60, 90, 120, and 150 W in the air temperatures of 35, 40, 45, 50, and 55 °C and velocities of 0.2, 0.5, 0.8, 1.1, and 1.4 m/s for a thickness of 20 cm. The results showed that in-range drying parameters played a major role in response analysis, suggesting that ultrasound efficiency during convective drying heavily depends on the power, air temperature, and velocity levels. Ultrasound assistance significantly increased bed evaporation rate up to 38.93%. Subsequently, it caused a reasonable reduction in total drying time, EC, and BK percentage up to 27.92%, 25.98%, and 34.22%, respectively in the case of 35 °C, v = 0.8 m/s, and P = 90 W. Remarkable advances were attained in the ultrasound assisted drying domain in grain quality via acceptable decrease in niacin and TPC losses within shorter drying time. There was a significant linear trend in BK, niacin, and TPC values across the bed thickness, which all was increased by the ultrasound application. The highest nutrient retention and physical quality preservation belonged to the top layer, which was influenced by the ultrasound radiation by the highest degree.

7.
Food Technol Biotechnol ; 55(2): 197-205, 2017 Jun.
Article in English | MEDLINE | ID: mdl-28867949

ABSTRACT

In this paper the kinetics of osmotic dehydration of carrot and the influence of this pretreatment on the post-drying processes and the quality of obtained products are analysed. Osmotic dehydration was carried out in the aqueous fructose solution in two different ways: with and without ultrasound assistance. In the first part of the research, the kinetics of osmotic dehydration was analysed on the basis of osmotic dewatering rate, water loss and solid gain. Next, the effective time of dehydration was determined and in the second part of research samples were initially dehydrated for 30 min and dried. Five different procedures of drying were established on the grounds of convective method enhanced with microwave and infrared radiation. The influence of osmotic dehydration on the drying kinetics and final product quality was analysed. It was found that it did not influence the drying kinetics significantly but positively affected the final product quality. Negligible influence on the drying kinetics was attributed to solid uptake, which may block the pores, hindering heat and mass transfer. It was also concluded that the application of microwave and/or infrared radiation during convective drying significantly influenced the kinetics of the final stage of drying. A proper combination of aforementioned techniques of hybrid drying allows reducing the drying time. Differences between the particular dehydration methods and drying schedules were discussed.

8.
Int J Clin Pharm ; 39(4): 867-873, 2017 Aug.
Article in English | MEDLINE | ID: mdl-28550348

ABSTRACT

Background There is a relative paucity of information to characterise potential changes in medication regimen complexity and prevalence of prescribing of potentially inappropriate medications after hospitalisation, both in Australia and elsewhere. Objective To evaluate medication regimen complexity and the prevalence of potentially inappropriate medications before and after admission to hospital. Setting General medical units of a tertiary care hospital in Australia. Methods Retrospective cohort study of patients aged 65 years and above. Medication complexity was measured by using the Medication Regimen Complexity Index (MRCI). Main outcome measure The primary outcome was the change in the Medication Regimen Complexity Index for all prescribed medications after hospitalization. Results A convenience sample of 100 patients was included in the study. There was a significant change in the mean medication complexity score (as measured using the MRCI), increasing from 29 at the time of admission to 32 at the time of discharge (p < 0.05). Factors such as baseline medication regimen complexity (pre-admission MRCI) and length of stay in the hospitals appear to influence the change in medication complexity. However, the proportion of patients prescribed at least one potentially inappropriate medicine (PIM) decreased significantly, from 52% pre-hospitalization to 42% at discharge (p = 0.04). Conclusions Relative to the time of admission, overall medication complexity increased and the proportion of patients who were prescribed PIMs decreased after hospitalisation.


Subject(s)
Inappropriate Prescribing/trends , Medication Reconciliation/trends , Patient Discharge/trends , Polypharmacy , Potentially Inappropriate Medication List/trends , Aged , Aged, 80 and over , Cohort Studies , Female , Hospitalization/trends , Humans , Inappropriate Prescribing/prevention & control , Male , Medication Reconciliation/methods , Medication Reconciliation/standards , Patient Discharge/standards , Potentially Inappropriate Medication List/standards , Prevalence , Retrospective Studies
9.
Ultrason Sonochem ; 34: 531-539, 2017 01.
Article in English | MEDLINE | ID: mdl-27773279

ABSTRACT

The effectiveness of hybrid drying based on convective drying with application of ultrasound and microwave enhancement is the main subject of the studies. The drying kinetics, energy consumption as well as the quality aspect of green pepper is analysed. It was shown that hybrid drying methods shorten significantly the drying time, reduce the energy consumption and affect positively the quality factors. Each of the analysed aspects depend on combination of the convective-ultrasound-microwave drying programs. Besides, based on the drying model elaborated earlier by one of the authors, the effects of ultrasound on convective drying assessed by such phenomena as "heating effect", "vibration effect" and "synergistic effect" are presented.


Subject(s)
Air , Capsicum/chemistry , Convection , Desiccation/methods , Food Handling/methods , Microwaves , Ultrasonic Waves , Desiccation/instrumentation , Food Handling/instrumentation , Models, Theoretical , Time Factors
10.
J Med Internet Res ; 18(6): e156, 2016 06 27.
Article in English | MEDLINE | ID: mdl-27349441

ABSTRACT

BACKGROUND: The objective of disease screening is to encourage high-risk subjects to seek health care diagnosis and treatment. Mobile phone apps can effectively screen mental health conditions, including depression. However, it is not known how effective such screening methods are in motivating users to discuss the obtained results of such apps with health care professionals. Does a mobile phone depression-screening app motivate users with high depressive symptoms to seek health care professional advice? This study aimed to address this question. METHOD: This was a single-cohort, prospective, observational study of a free mobile phone depression app developed in English and released on Apple's App Store. Apple App Store users (aged 18 or above) in 5 countries, that is, Australia, Canada, New Zealand (NZ), the United Kingdom (UK), and the United States (US), were recruited directly via the app's download page. The participants then completed the Patient Health Questionnaire (PHQ-9), and their depression screening score was displayed to them. If their score was 11 or above and they had never been diagnosed with depression before, they were advised to take their results to their health care professional. They were to follow up after 1 month. RESULTS: A group of 2538 participants from the 5 countries completed PHQ-9 depression screening with the app. Of them, 322 participants were found to have high depressive symptoms and had never been diagnosed with depression, and received advice to discuss their results with health care professionals. About 74% of those completed the follow-up; approximately 38% of these self-reported consulting their health care professionals about their depression score. Only positive attitude toward depression as a real disease was associated with increased follow-up response rate (odds ratio (OR) 3.2, CI 1.38-8.29). CONCLUSIONS: A mobile phone depression-screening app motivated some users to seek a depression diagnosis. However, further study should investigate how other app users use the screening results provided by such apps.


Subject(s)
Cell Phone , Depression/diagnosis , Depressive Disorder/diagnosis , Help-Seeking Behavior , Mobile Applications , Motivation , Adolescent , Adult , Aged , Attitude to Health , Australia , Canada , Female , Health Personnel , Humans , Male , Mass Screening , Middle Aged , New Zealand , Prospective Studies , Self Report , United Kingdom , United States , Young Adult
11.
Saudi Pharm J ; 24(4): 494-505, 2016 Jul.
Article in English | MEDLINE | ID: mdl-27330380

ABSTRACT

Hyperphosphatemia in chronic kidney disease (CKD) patients is a potentially life altering condition that can lead to cardiovascular calcification, metabolic bone disease (renal osteodystrophy) and the development of secondary hyperparathyroidism (SHPT). It is also associated with increased prevalence of cardiovascular diseases and mortality rates. To effectively manage hyperphosphatemia in CKD patients it is important to not only consider pharmacological and nonpharmacological treatment options but also to understand the underlying physiologic pathways involved in phosphorus homoeostasis. This review will therefore provide both a background into phosphorus homoeostasis and the management of hyperphosphatemia in CKD patients. In addition, it will cover some of the most important reasons for failure to control hyperphosphatemia with emphasis on the effect of the gastric pH on phosphate binders efficiency.

12.
Bioelectromagnetics ; 36(3): 245-50, 2015 Apr.
Article in English | MEDLINE | ID: mdl-25703451

ABSTRACT

This study was designed to determine whether long-term (2 years) brain exposure to mobile telephone radiofrequency (RF) fields produces any astrocytic activation as these glia react to a wide range of neural perturbations by astrogliosis. Using a purpose-designed exposure system at 900 MHz, mice were given a single, far-field whole body exposure at a specific absorption rate of 4 W/kg on five successive days per week for 104 weeks. Control mice were sham-exposed or freely mobile in a cage to control any stress caused by immobilization in the exposure module. Brains were perfusion-fixed with 4% paraformaldehyde and three coronal levels immunostained for glial fibrillary acidic protein (GFAP). These brain slices were then examined by light microscopy and the amount of this immunomarker quantified using a color deconvolution method. There was no change in astrocytic GFAP immunostaining in brains after long-term exposure to mobile telephony microwaves compared to control (sham-exposed or freely moving caged mice). It was concluded that long-term (2 years) exposure of murine brains to mobile telephone RF fields did not produce any astrocytic reaction (astrogliosis) detectable by GFAP immunostaining.


Subject(s)
Astrocytes/metabolism , Astrocytes/radiation effects , Brain/cytology , Brain/radiation effects , Cell Phone , Radiation Exposure/adverse effects , Radio Waves/adverse effects , Animals , Astrocytes/cytology , Astrocytes/immunology , Female , Glial Fibrillary Acidic Protein , Mice , Nerve Tissue Proteins/metabolism , Time Factors
13.
Eur J Clin Pharmacol ; 71(4): 411-23, 2015 Apr.
Article in English | MEDLINE | ID: mdl-25687918

ABSTRACT

PURPOSE: Evidence regarding the relationship between red blood cell methotrexate polyglutamate concentration and response to treatment and adverse drug reactions in patients using methotrexate for inflammatory arthropathies is complex and in some respects appears conflicting. Accordingly, we undertook a systematic analysis of available evidence to determine the clinical utility of dosing methotrexate to a target red blood cell methotrexate polyglutamate concentration. METHODS: A systematic literature review was conducted to identify all studies that had reported an association between red blood cell methotrexate polyglutamate concentration and disease activity or adverse drug reactions in users of methotrexate for the treatment of rheumatoid arthritis, juvenile idiopathic arthritis or psoriatic arthritis. RESULTS: No randomised controlled trials were identified. Thirteen studies (ten in patients with rheumatoid arthritis and three in patients with juvenile idiopathic arthritis) were identified. All studies evaluated an association between red blood cell methotrexate polyglutamate concentration and response to treatment, and eight evaluated an association with toxicity. Eight studies identified lower disease activity with at least one higher red blood cell methotrexate polyglutamate concentration, although there was at least moderate potential for bias in all of these studies. Relatively large increases in concentration appeared to be required to produce a meaningful reduction in disease activity. Only one study identified an association between red blood cell methotrexate polyglutamate concentration and methotrexate-induced side effects, although studies were likely underpowered to detect this type of association. CONCLUSIONS: The manner in which data were presented in the included studies had many limitations that hampered its conclusive assessment, but red blood cell methotrexate polyglutamate concentrations appear to be a potentially useful guide to treatment in patients with inflammatory arthropathies, but the specific polyglutamate that should be monitored and how monitoring could be integrated into treat-to-target approaches should be clarified before it can be routinely implemented.


Subject(s)
Antirheumatic Agents/metabolism , Antirheumatic Agents/therapeutic use , Arthritis/drug therapy , Arthritis/metabolism , Erythrocytes/metabolism , Methotrexate/analogs & derivatives , Polyglutamic Acid/analogs & derivatives , Adolescent , Adult , Aged , Aged, 80 and over , Antirheumatic Agents/adverse effects , Child , Clinical Trials as Topic , Cross-Sectional Studies , Dose-Response Relationship, Drug , Drug-Related Side Effects and Adverse Reactions/metabolism , Female , Humans , Male , Methotrexate/adverse effects , Methotrexate/metabolism , Methotrexate/therapeutic use , Middle Aged , Polyglutamic Acid/adverse effects , Polyglutamic Acid/metabolism , Polyglutamic Acid/therapeutic use , Prospective Studies
14.
Pan Afr Med J ; 14: 132, 2013.
Article in English | MEDLINE | ID: mdl-23734277

ABSTRACT

INTRODUCTION: Evidence suggests that 80-90% of doctors in most countries across the world are frequently visited by pharmaceutical company representatives (PCRs). The objective of study to examine perceptions of Libyan doctors between August and October 2010, regarding the benefits, ethical issues and influences of their interactions with (PCRs). METHODS: An anonymous questionnaire was circulated to 1,000 Libyan doctors in selected public and private practice settings in Tripoli, Benghazi and Sebha. RESULTS: The major benefits of PCR visits reported in the 608 evaluable responses were; receiving new information about products (94.4%). The majority of doctors (75%) were not against the provision of gifts but were more comfortable if it was "cheap" (51%) and had educational value (51%). Doctors who received more printed materials, simple gifts or drug samples were less likely to disapprove of accepting gifts (p5]. Effective marketing can positively influence an individual's attitude towards a product and because there is an association between attitude, intention and behaviour [6], persuasive communication can generate a positive attitude and increase the potential for influence [7]. PCRs can accomplish behaviour change because they directly communicate with prescribers. During a visit they attempt to raise awareness of their products, provide product information and encourage a favourable attitude towards their company and product [8]. They employ verbal persuasion techniques and also provide other incentives such as gifts, free drug samples and sponsored educational events [2]. The provision of promotional gifts can be seen as a friendship building technique to reinforce the communication nexus between PCRs and doctors but it can also potentially erode professional barriers [9]. Contact between a PCR and a medical practitioner is therefore viewed by drug companies as a vital part of their marketing strategy and frequent visits, together with written promotional materials, gifts and other incentives, can help alter behaviour even if the initial attitudes towards a product were weak or unclear [10].


Subject(s)
Attitude of Health Personnel , Drug Industry , Interprofessional Relations/ethics , Physicians/ethics , Physicians/psychology , Humans , Libya , Surveys and Questionnaires
15.
Article in English | MEDLINE | ID: mdl-23205141

ABSTRACT

OBJECTIVE: To examine the opinions of Libyan doctors regarding the quality of drug information provided by pharmaceutical company representatives (PCRs) during detailing visits. METHOD: An anonymous survey was conducted among 1,000 doctors from selected institutes in Tripoli, Benghazi and Sebha. Doctors were asked questions regarding the quality of information provided during drug-detailing visits. RESULTS: A questionnaire return rate of 61% (608 returned questionnaires out of 1,000) was achieved. The majority (n=463, 76%) of surveyed participants graded the quality of information provided as average. Approximately, 40% of respondents indicated that contraindications, precautions, interactions and adverse effects of products promoted by PCRs were never or rarely mentioned during promotional visits, and 65% of respondents indicated that an alternative drug to the promoted product was never or rarely mentioned by the representatives. More than 50% of respondents (n=310, 51%) reported that PCRs were not always able to answer all questions about their products. Only seven respondents (1%) believed that PCRs never exaggerated the uniqueness, efficacy or safety of their product. The majority of respondents (n=342, 56%) indicated that verbal information was not always consistent with written information provided. Seven per cent of respondents (n=43) admitted that they did not know whether or not the verbal information provided by PCRs was consistent with written information. CONCLUSION: Doctors believe that the provision of drug information by PCRs in Libya is incomplete and often exaggerated. Pharmaceutical companies should ensure that their representatives are trained to a standard to provide reliable information regarding the products they promote.

16.
J Acquir Immune Defic Syndr ; 61(4): 455-61, 2012 Dec 01.
Article in English | MEDLINE | ID: mdl-22955054

ABSTRACT

BACKGROUND: We evaluated the longitudinal association of alcohol use with immunologic response to combination antiretroviral therapy (ART) among HIV-infected individuals. METHODS: This was a prospective cohort study of individuals initiating ART. Participants underwent an Audio Computer-Assisted Self-interview querying drug and alcohol use within 6 months of treatment. Immunologic response to ART was defined by CD4 T-cell count (CD4). Primary independent variables were self-reported number of drinks consumed per drinking day (quantity) and days of alcohol consumption in a typical week (frequency). We used linear mixed effects models to quantify the association between CD4 T-cell count and alcohol quantity and frequency and Cox proportional hazards models to estimate the relative hazard of an increase in 100, 150, and 200 CD4 cells per cubic millimeter per additional drink per drinking day. Analyses were stratified by sex. Viral suppression was examined as a time-varying covariate. RESULTS: Between 2000 and 2008, 1107 individuals were eligible for inclusion in this study. There was no statistically significant difference in CD4 T-cell count by average drinks per drinking day at any frequency of alcohol use irrespective of sex or viral suppression. Similarly, we found no difference in the hazard ratio for drinks per drinking day within the categories of drinking frequency for time to CD4 T-cell count increase of 100, 150, and 200 cells per cubic millimeter, respectively. CONCLUSIONS: Among individuals initiating ART, the benefits of therapy and viral suppression on the immune system outweigh detrimental effects of alcohol, reinforcing the importance of initiating ART and ensuring adequate adherence to therapy.


Subject(s)
Alcohol Drinking , Anti-Retroviral Agents/administration & dosage , HIV Infections/drug therapy , Adult , Aged , CD4 Lymphocyte Count , Cohort Studies , Female , HIV Infections/immunology , Humans , Male , Middle Aged , Prospective Studies , Surveys and Questionnaires , Young Adult
17.
Article in English | MEDLINE | ID: mdl-23002397

ABSTRACT

OBJECTIVES: To examine the frequency of pharmaceutical company representative (PCR) interactions with doctors in Libya and review possible associations between these interactions and the personal and practice setting characteristics of doctors. METHOD: An anonymous survey questionnaire was circulated to 1,000 Libyan doctors in selected public and private practice settings in Tripoli, Benghazi and Sebha. RESULTS: A questionnaire return rate of 61% (608 returned questionnaires) was achieved. Most respondents (94%) reported that they had been visited by PCRs at least 'once' in the last year. Fifty per cent of respondents met with PCRs at least once a month, and 20% at least once a week. The following characteristics were significantly associated with meeting with a representative more than once a week: age, gender (male > female), years of practice, being a specialist (other than an anaesthesiologist) or working in private practice. Ninety-one per cent of doctors reported that they had received at least one kind of relationship gift during the last year. Printed materials (79%), simple gifts (73%) and drug samples (69%) were the most common relationship products given to respondents. Reimbursements or sponsored items were reported by 33% of respondents. Physician specialists were more likely to receive drug samples or sponsored items than residents, general practitioners, anaesthesiologists or surgeons (P<0.01). Participants working in private practice alone or in both sectors were more likely to receive printed materials, simple gifts or free samples from PCRs than doctors working in the public sector (P<0.05). CONCLUSION: Libyan doctors are frequently visited by PCRs. Doctors, working in private practice or specialist practice, are especially targeted by promotional activities. An agreed code of conduct for pharmaceutical promotion in Libya between doctors and PCRs should be created.

18.
Int J Clin Pharm ; 34(6): 855-62, 2012 Dec.
Article in English | MEDLINE | ID: mdl-22864867

ABSTRACT

BACKGROUND: The elderly population is increasing worldwide. Due to age-related physiological changes that affect the pharmacokinetics and pharmacodynamics of drugs, the elderly are predisposed to adverse drug reactions. Prescribing of potentially inappropriate medications (PIMs) has been found to be prevalent among the elderly and PIM use has been associated with hospitalisations and mortality. OBJECTIVES: This study aims to identify the prevalence and nature of pre-admission inappropriate prescribing by using the STOPP (screening tool of older people's prescriptions) criteria amongst a sample of hospitalised elderly inpatients in South Australia. SETTING: Medical, surgical and rehabilitation wards of a public teaching hospital in Adelaide, South Australia. MAIN OUTCOME MEASURE: Pre-admission prevalence of PIM. METHOD: Medication management plans of 100 patients of ≥65 years old were prospectively studied to determine the prevalence of pre-admission PIM use. Sixty-five criteria of STOPP were applied to identify PIMs. RESULTS: The total number of pre-admission medications screened during the study period was 949; the median number of medicines per patient was nine (range 2-28). Overall the STOPP criteria identified 138 PIMs in 60 % of patients. The most frequently encountered PIM was opiates prescribed in patients with recurrent falls (12.3 %), followed by benzodiazepines in fallers (10.1 %) and proton pump inhibitors when prescribed for peptic ulcer disease for long-term at maximum doses (9.4 %). The number of medications were found to have a positive correlation with pre-admission PIM use (r(s) = 0.49, P < 0.01). CONCLUSIONS: Pre-admission PIM use is highly prevalent among the studied population. Strategies to reduce PIM use should be undertaken by physicians and pharmacists. The use of the STOPP criteria in clinical practice to reduce prescriptions of inappropriate medications requires further investigation.


Subject(s)
Health Services for the Aged , Inappropriate Prescribing , Inpatients , Medication Reconciliation , Age Factors , Aged , Aged, 80 and over , Cross-Sectional Studies , Drug Interactions , Drug Prescriptions , Female , Hospitals, Public , Hospitals, Teaching , Humans , Inappropriate Prescribing/prevention & control , Male , Polypharmacy , Prospective Studies , South Australia
19.
Int J Clin Pharm ; 34(4): 561-8, 2012 Aug.
Article in English | MEDLINE | ID: mdl-22552577

ABSTRACT

BACKGROUND: Gastrointestinal disorders frequently present symptoms which are often self-treated. OBJECTIVE: To record demographic profile of patients visiting community pharmacies for self-treatment with medications for gastrointestinal disorders, the number of these patients who fulfilled irritable bowel syndrome diagnostic criteria, and to judge the appropriateness of their treatment requests. SETTING: Singapore community pharmacies. METHOD: The multicentre study was conducted using ROME III adapted criteria on adults above 18 years who have self-selected medicinal products for treatment of irritable bowel syndrome or gastrointestinal symptoms in the community pharmacy. RESULTS: Among those seeking self-medication, 36.8 % fulfilled criteria for irritable bowel syndrome, with irritable bowel syndrome-mixed (16.3 %) being the most prevalent subtype. For patients not fulfilling criteria for irritable bowel syndrome diagnosis, rates for other functional gastrointestinal disorders were constipation (20.5 %), dyspepsia (16.3 %), gastroesophageal reflux disease (12.1 %), diarrhoea (8.9 %), bloating (4.2 %), and heartburn (3.2 %). There were more females with gastrointestinal complaints. Overall, 21.6 % of the total participants had recently sought medical attention for their gastrointestinal complaint. 20 % of patients selected inappropriate medication for their gastrointestinal complaints, and the antacids class had the highest incidence of inappropriate medication use. Possible co-existing relationships were seen between gastroesophageal reflux disease with dyspepsia, irritable bowel syndrome with gastroesophageal reflux disease, irritable bowel syndrome with dyspepsia, and diarrhoea with constipation. CONCLUSION: Patients who fulfilled criteria for irritable bowel syndrome had a high tendency to self-treat their gastrointestinal symptoms. Constipation complaints were also common. Around one in five patients self-medicated gastrointestinal symptoms inappropriately, with antacids being the most common.


Subject(s)
Community Pharmacy Services/statistics & numerical data , Gastrointestinal Diseases/epidemiology , Irritable Bowel Syndrome/epidemiology , Self Medication/statistics & numerical data , Adolescent , Adult , Aged , Asian People/statistics & numerical data , Gastrointestinal Diseases/complications , Gastrointestinal Diseases/drug therapy , Humans , Irritable Bowel Syndrome/complications , Irritable Bowel Syndrome/drug therapy , Male , Middle Aged , Nonprescription Drugs/therapeutic use , Prevalence , Singapore/epidemiology
20.
Libyan J Med ; 52010 Oct 21.
Article in English | MEDLINE | ID: mdl-21483563

ABSTRACT

UNLABELLED: Medicines are health technologies that can translate into tangible benefits for numerous acute as well as chronic health conditions. A nation's pharmaceutical sector needs to be appropriately structured and managed in order to ensure a safe, effective and quality supply of medicines to society. The process of medicines management involves the sequential management of five critical activity areas; namely; registration, selection, procurement, distribution and use. Formalized and standardized management of all five critical activity areas positively influences the availability, quality and affordability of medicines and ultimately increases the reliability and quality of the national healthcare system. AIM: The aim of this review is to examine the current structure and operation of medicines management (i.e. the pharmaceutical sector) in Libya. CONCLUSION: In the Libyan healthcare system all five critical activity areas are compromised. Restructuring of the pharmaceutical sector in Libya is required in order to provide and sustain sound pharmaceutical services for Libyan society and improve the national public health outcomes.

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