Global incidence, prevalence, years lived with disability (YLDs), disability-adjusted life-years (DALYs), and healthy life expectancy (HALE) for 371 diseases and injuries in 204 countries and territories and 811 subnational locations, 1990-2021: a systematic analysis for the Global Burden of Disease Study 2021

BACKGROUND

Detailed, comprehensive, and timely reporting on population health by underlying causes of disability and premature death is crucial to understanding and responding to complex patterns of disease and injury burden over time and across age groups, sexes, and locations. The availability of disease burden estimates can promote evidence-based interventions that enable public health researchers, policy makers, and other professionals to implement strategies that can mitigate diseases. It can also facilitate more rigorous monitoring of progress towards national and international health targets, such as the Sustainable Development Goals. For three decades, the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) has filled that need. A global network of collaborators contributed to the production of GBD 2021 by providing, reviewing, and analysing all available data. GBD estimates are updated routinely with additional data and refined analytical methods. GBD 2021 presents, for the first time, estimates of health loss due to the COVID-19 pandemic.

METHODS

The GBD 2021 disease and injury burden analysis estimated years lived with disability (YLDs), years of life lost (YLLs), disability-adjusted life-years (DALYs), and healthy life expectancy (HALE) for 371 diseases and injuries using 100 983 data sources. Data were extracted from vital registration systems, verbal autopsies, censuses, household surveys, disease-specific registries, health service contact data, and other sources. YLDs were calculated by multiplying cause-age-sex-location-year-specific prevalence of sequelae by their respective disability weights, for each disease and injury. YLLs were calculated by multiplying cause-age-sex-location-year-specific deaths by the standard life expectancy at the age that death occurred. DALYs were calculated by summing YLDs and YLLs. HALE estimates were produced using YLDs per capita and age-specific mortality rates by location, age, sex, year, and cause. 95% uncertainty intervals (UIs) were generated for all final estimates as the 2·5th and 97·5th percentiles values of 500 draws. Uncertainty was propagated at each step of the estimation process. Counts and age-standardised rates were calculated globally, for seven super-regions, 21 regions, 204 countries and territories (including 21 countries with subnational locations), and 811 subnational locations, from 1990 to 2021. Here we report data for 2010 to 2021 to highlight trends in disease burden over the past decade and through the first 2 years of the COVID-19 pandemic.

FINDINGS

Global DALYs increased from 2·63 billion (95% UI 2·44-2·85) in 2010 to 2·88 billion (2·64-3·15) in 2021 for all causes combined. Much of this increase in the number of DALYs was due to population growth and ageing, as indicated by a decrease in global age-standardised all-cause DALY rates of 14·2% (95% UI 10·7-17·3) between 2010 and 2019. Notably, however, this decrease in rates reversed during the first 2 years of the COVID-19 pandemic, with increases in global age-standardised all-cause DALY rates since 2019 of 4·1% (1·8-6·3) in 2020 and 7·2% (4·7-10·0) in 2021. In 2021, COVID-19 was the leading cause of DALYs globally (212·0 million [198·0-234·5] DALYs), followed by ischaemic heart disease (188·3 million [176·7-198·3]), neonatal disorders (186·3 million [162·3-214·9]), and stroke (160·4 million [148·0-171·7]). However, notable health gains were seen among other leading communicable, maternal, neonatal, and nutritional (CMNN) diseases. Globally between 2010 and 2021, the age-standardised DALY rates for HIV/AIDS decreased by 47·8% (43·3-51·7) and for diarrhoeal diseases decreased by 47·0% (39·9-52·9). Non-communicable diseases contributed 1·73 billion (95% UI 1·54-1·94) DALYs in 2021, with a decrease in age-standardised DALY rates since 2010 of 6·4% (95% UI 3·5-9·5). Between 2010 and 2021, among the 25 leading Level 3 causes, age-standardised DALY rates increased most substantially for anxiety disorders (16·7% [14·0-19·8]), depressive disorders (16·4% [11·9-21·3]), and diabetes (14·0% [10·0-17·4]). Age-standardised DALY rates due to injuries decreased globally by 24·0% (20·7-27·2) between 2010 and 2021, although improvements were not uniform across locations, ages, and sexes. Globally, HALE at birth improved slightly, from 61·3 years (58·6-63·6) in 2010 to 62·2 years (59·4-64·7) in 2021. However, despite this overall increase, HALE decreased by 2·2% (1·6-2·9) between 2019 and 2021.

INTERPRETATION

Putting the COVID-19 pandemic in the context of a mutually exclusive and collectively exhaustive list of causes of health loss is crucial to understanding its impact and ensuring that health funding and policy address needs at both local and global levels through cost-effective and evidence-based interventions. A global epidemiological transition remains underway. Our findings suggest that prioritising non-communicable disease prevention and treatment policies, as well as strengthening health systems, continues to be crucially important. The progress on reducing the burden of CMNN diseases must not stall; although global trends are improving, the burden of CMNN diseases remains unacceptably high. Evidence-based interventions will help save the lives of young children and mothers and improve the overall health and economic conditions of societies across the world. Governments and multilateral organisations should prioritise pandemic preparedness planning alongside efforts to reduce the burden of diseases and injuries that will strain resources in the coming decades.

FUNDING

Bill & Melinda Gates Foundation.

Global burden of 288 causes of death and life expectancy decomposition in 204 countries and territories and 811 subnational locations, 1990-2021: a systematic analysis for the Global Burden of Disease Study 2021

BACKGROUND

Regular, detailed reporting on population health by underlying cause of death is fundamental for public health decision making. Cause-specific estimates of mortality and the subsequent effects on life expectancy worldwide are valuable metrics to gauge progress in reducing mortality rates. These estimates are particularly important following large-scale mortality spikes, such as the COVID-19 pandemic. When systematically analysed, mortality rates and life expectancy allow comparisons of the consequences of causes of death globally and over time, providing a nuanced understanding of the effect of these causes on global populations.

METHODS

The Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021 cause-of-death analysis estimated mortality and years of life lost (YLLs) from 288 causes of death by age-sex-location-year in 204 countries and territories and 811 subnational locations for each year from 1990 until 2021. The analysis used 56 604 data sources, including data from vital registration and verbal autopsy as well as surveys, censuses, surveillance systems, and cancer registries, among others. As with previous GBD rounds, cause-specific death rates for most causes were estimated using the Cause of Death Ensemble model-a modelling tool developed for GBD to assess the out-of-sample predictive validity of different statistical models and covariate permutations and combine those results to produce cause-specific mortality estimates-with alternative strategies adapted to model causes with insufficient data, substantial changes in reporting over the study period, or unusual epidemiology. YLLs were computed as the product of the number of deaths for each cause-age-sex-location-year and the standard life expectancy at each age. As part of the modelling process, uncertainty intervals (UIs) were generated using the 2·5th and 97·5th percentiles from a 1000-draw distribution for each metric. We decomposed life expectancy by cause of death, location, and year to show cause-specific effects on life expectancy from 1990 to 2021. We also used the coefficient of variation and the fraction of population affected by 90% of deaths to highlight concentrations of mortality. Findings are reported in counts and age-standardised rates. Methodological improvements for cause-of-death estimates in GBD 2021 include the expansion of under-5-years age group to include four new age groups, enhanced methods to account for stochastic variation of sparse data, and the inclusion of COVID-19 and other pandemic-related mortality-which includes excess mortality associated with the pandemic, excluding COVID-19, lower respiratory infections, measles, malaria, and pertussis. For this analysis, 199 new country-years of vital registration cause-of-death data, 5 country-years of surveillance data, 21 country-years of verbal autopsy data, and 94 country-years of other data types were added to those used in previous GBD rounds.

FINDINGS

The leading causes of age-standardised deaths globally were the same in 2019 as they were in 1990; in descending order, these were, ischaemic heart disease, stroke, chronic obstructive pulmonary disease, and lower respiratory infections. In 2021, however, COVID-19 replaced stroke as the second-leading age-standardised cause of death, with 94·0 deaths (95% UI 89·2-100·0) per 100 000 population. The COVID-19 pandemic shifted the rankings of the leading five causes, lowering stroke to the third-leading and chronic obstructive pulmonary disease to the fourth-leading position. In 2021, the highest age-standardised death rates from COVID-19 occurred in sub-Saharan Africa (271·0 deaths [250·1-290·7] per 100 000 population) and Latin America and the Caribbean (195·4 deaths [182·1-211·4] per 100 000 population). The lowest age-standardised death rates from COVID-19 were in the high-income super-region (48·1 deaths [47·4-48·8] per 100 000 population) and southeast Asia, east Asia, and Oceania (23·2 deaths [16·3-37·2] per 100 000 population). Globally, life expectancy steadily improved between 1990 and 2019 for 18 of the 22 investigated causes. Decomposition of global and regional life expectancy showed the positive effect that reductions in deaths from enteric infections, lower respiratory infections, stroke, and neonatal deaths, among others have contributed to improved survival over the study period. However, a net reduction of 1·6 years occurred in global life expectancy between 2019 and 2021, primarily due to increased death rates from COVID-19 and other pandemic-related mortality. Life expectancy was highly variable between super-regions over the study period, with southeast Asia, east Asia, and Oceania gaining 8·3 years (6·7-9·9) overall, while having the smallest reduction in life expectancy due to COVID-19 (0·4 years). The largest reduction in life expectancy due to COVID-19 occurred in Latin America and the Caribbean (3·6 years). Additionally, 53 of the 288 causes of death were highly concentrated in locations with less than 50% of the global population as of 2021, and these causes of death became progressively more concentrated since 1990, when only 44 causes showed this pattern. The concentration phenomenon is discussed heuristically with respect to enteric and lower respiratory infections, malaria, HIV/AIDS, neonatal disorders, tuberculosis, and measles.

INTERPRETATION

Long-standing gains in life expectancy and reductions in many of the leading causes of death have been disrupted by the COVID-19 pandemic, the adverse effects of which were spread unevenly among populations. Despite the pandemic, there has been continued progress in combatting several notable causes of death, leading to improved global life expectancy over the study period. Each of the seven GBD super-regions showed an overall improvement from 1990 and 2021, obscuring the negative effect in the years of the pandemic. Additionally, our findings regarding regional variation in causes of death driving increases in life expectancy hold clear policy utility. Analyses of shifting mortality trends reveal that several causes, once widespread globally, are now increasingly concentrated geographically. These changes in mortality concentration, alongside further investigation of changing risks, interventions, and relevant policy, present an important opportunity to deepen our understanding of mortality-reduction strategies. Examining patterns in mortality concentration might reveal areas where successful public health interventions have been implemented. Translating these successes to locations where certain causes of death remain entrenched can inform policies that work to improve life expectancy for people everywhere.

FUNDING

Bill & Melinda Gates Foundation.

The Effect of the COVID-19 Pandemic on the Factors Influencing Iranian Medical Residents' Specialty Selection: A Qualitative Study

Background

Medical students' specialty selection influences the composition of the physician workforce and the effectiveness of health systems. Therefore, the identification of factors that influence the choice of specialty is critical for an evidence-based health policy. This study aimed to investigate the effect of the Coronavirus Disease 2019 (COVID-19) pandemic on the determinants of specialty choice among Iranian medical residents.

Methods

In early 2022, this qualitative study was conducted among Iranian medical residents in seven provinces, including Tehran, Isfahan, Fars, Khorasan Razavi, Kerman, Kermanshah, and Khuzestan. The participants were selected using a purposeful sampling method. Data were collected using 74 semi-structured in-depth face-to-face interviews. Finally, a thematic content analysis (conventional content analysis) method was applied for data synthesis.

Results

The participant's mean age was 28.7±2.5 years, and more than 52% (N=39) were men. Following data synthesis, 10 sub-themes and four main themes were identified, including educational aspects affected by the pandemic, career-related hazards, personal and professional lifestyles affected by the disease, and experiences and beliefs regarding the pandemic.

Conclusion

The COVID-19 pandemic has had a significant impact on medical students' educational, professional, and personal aspects of specialty choices. This study demonstrated how the disease affected the choice of specialty. Therefore, the findings could be used for developing national health policy and planning.

Global age-sex-specific mortality, life expectancy, and population estimates in 204 countries and territories and 811 subnational locations, 1950-2021, and the impact of the COVID-19 pandemic: a comprehensive demographic analysis for the Global Burden of Disease Study 2021

BACKGROUND

Estimates of demographic metrics are crucial to assess levels and trends of population health outcomes. The profound impact of the COVID-19 pandemic on populations worldwide has underscored the need for timely estimates to understand this unprecedented event within the context of long-term population health trends. The Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021 provides new demographic estimates for 204 countries and territories and 811 additional subnational locations from 1950 to 2021, with a particular emphasis on changes in mortality and life expectancy that occurred during the 2020-21 COVID-19 pandemic period.

METHODS

22 223 data sources from vital registration, sample registration, surveys, censuses, and other sources were used to estimate mortality, with a subset of these sources used exclusively to estimate excess mortality due to the COVID-19 pandemic. 2026 data sources were used for population estimation. Additional sources were used to estimate migration; the effects of the HIV epidemic; and demographic discontinuities due to conflicts, famines, natural disasters, and pandemics, which are used as inputs for estimating mortality and population. Spatiotemporal Gaussian process regression (ST-GPR) was used to generate under-5 mortality rates, which synthesised 30 763 location-years of vital registration and sample registration data, 1365 surveys and censuses, and 80 other sources. ST-GPR was also used to estimate adult mortality (between ages 15 and 59 years) based on information from 31 642 location-years of vital registration and sample registration data, 355 surveys and censuses, and 24 other sources. Estimates of child and adult mortality rates were then used to generate life tables with a relational model life table system. For countries with large HIV epidemics, life tables were adjusted using independent estimates of HIV-specific mortality generated via an epidemiological analysis of HIV prevalence surveys, antenatal clinic serosurveillance, and other data sources. Excess mortality due to the COVID-19 pandemic in 2020 and 2021 was determined by subtracting observed all-cause mortality (adjusted for late registration and mortality anomalies) from the mortality expected in the absence of the pandemic. Expected mortality was calculated based on historical trends using an ensemble of models. In location-years where all-cause mortality data were unavailable, we estimated excess mortality rates using a regression model with covariates pertaining to the pandemic. Population size was computed using a Bayesian hierarchical cohort component model. Life expectancy was calculated using age-specific mortality rates and standard demographic methods. Uncertainty intervals (UIs) were calculated for every metric using the 25th and 975th ordered values from a 1000-draw posterior distribution.

FINDINGS

Global all-cause mortality followed two distinct patterns over the study period: age-standardised mortality rates declined between 1950 and 2019 (a 62·8% [95% UI 60·5-65·1] decline), and increased during the COVID-19 pandemic period (2020-21; 5·1% [0·9-9·6] increase). In contrast with the overall reverse in mortality trends during the pandemic period, child mortality continued to decline, with 4·66 million (3·98-5·50) global deaths in children younger than 5 years in 2021 compared with 5·21 million (4·50-6·01) in 2019. An estimated 131 million (126-137) people died globally from all causes in 2020 and 2021 combined, of which 15·9 million (14·7-17·2) were due to the COVID-19 pandemic (measured by excess mortality, which includes deaths directly due to SARS-CoV-2 infection and those indirectly due to other social, economic, or behavioural changes associated with the pandemic). Excess mortality rates exceeded 150 deaths per 100 000 population during at least one year of the pandemic in 80 countries and territories, whereas 20 nations had a negative excess mortality rate in 2020 or 2021, indicating that all-cause mortality in these countries was lower during the pandemic than expected based on historical trends. Between 1950 and 2021, global life expectancy at birth increased by 22·7 years (20·8-24·8), from 49·0 years (46·7-51·3) to 71·7 years (70·9-72·5). Global life expectancy at birth declined by 1·6 years (1·0-2·2) between 2019 and 2021, reversing historical trends. An increase in life expectancy was only observed in 32 (15·7%) of 204 countries and territories between 2019 and 2021. The global population reached 7·89 billion (7·67-8·13) people in 2021, by which time 56 of 204 countries and territories had peaked and subsequently populations have declined. The largest proportion of population growth between 2020 and 2021 was in sub-Saharan Africa (39·5% [28·4-52·7]) and south Asia (26·3% [9·0-44·7]). From 2000 to 2021, the ratio of the population aged 65 years and older to the population aged younger than 15 years increased in 188 (92·2%) of 204 nations.

INTERPRETATION

Global adult mortality rates markedly increased during the COVID-19 pandemic in 2020 and 2021, reversing past decreasing trends, while child mortality rates continued to decline, albeit more slowly than in earlier years. Although COVID-19 had a substantial impact on many demographic indicators during the first 2 years of the pandemic, overall global health progress over the 72 years evaluated has been profound, with considerable improvements in mortality and life expectancy. Additionally, we observed a deceleration of global population growth since 2017, despite steady or increasing growth in lower-income countries, combined with a continued global shift of population age structures towards older ages. These demographic changes will likely present future challenges to health systems, economies, and societies. The comprehensive demographic estimates reported here will enable researchers, policy makers, health practitioners, and other key stakeholders to better understand and address the profound changes that have occurred in the global health landscape following the first 2 years of the COVID-19 pandemic, and longer-term trends beyond the pandemic.

FUNDING

Bill & Melinda Gates Foundation.

Association of risky driving behavior with psychiatric disorders among Iranian drivers: A case-control study

PURPOSE

This study aimed to investigate the possible association between psychological disorders and risky driving behavior (RDB) in Iran.

METHODS

This case-control study conducted in Shiraz, Iran in 2021. The case group included drivers with psychological disorders and the control group included those without any disorders. The inclusion criteria for selecting patients were: active driving at the time of the study, being 18 - 65 years old, having a driving license, having a psychological disorder including depression, bipolar disorder, anxiety spectrum disorder, or psychotic disorder spectrum confirmed by a psychiatrist, and completing an informed consent form. The exclusion criterion was the existence of conditions that interfered with answering and understanding the questions. The inclusion criteria for selecting the healthy cases were: active driving at the time of the study, being 18 - 65 years old, having a driving license, lack of any past or present history of psychiatric problems, and completing an informed consent form. The data were gathered using a researcher-made checklist and Manchester driving behavior questionnaire. First, partition around medoids method was used to extract clusters of RDB. Then, backward logistic regression was applied to investigate the association between the independent variables and the clusters of RDB.

RESULTS

The sample comprised of 344 (153 with psychological disorder and 191 without confirmed psychological disorder) drivers. Backward elimination logistic regression on total data revealed that share of medical expenditure ≤ 10% of total household expenditure (OR = 3.27, 95% CI: 1.48 - 7.24), psychological disorder (OR = 3.08, 95% CI: 1.67 - 5.70), and substance abuse class (OR = 6.38, 95% CI: 3.55 - 11.48) were associated with high level of RDB.

CONCLUSION

Substance abuse, psychological illnesses, and share of medical costs from total household expenditure were found to be main predictors of RDB. Further investigations are necessary to explain the impact of different psychological illnesses on driving behavior.

Qualitative document analysis on Iranian contents and trends of population policies: Lessons learned and avenues for future

Population-related policies are among macro-strategic policies considered by all governments in the world. To achieve the desired population structure, it is first necessary to identify the general policy approach over time. This article aims to identify the main requirements of population policies during the last 70 years in Iran. This is a qualitative content analysis study conducted via the analysis of all relevant national policy documents from 1951 to 2022. To retrieve the relevant documents, we searched the official website of eight policymaking bodies in Iran. After identifying the documents, their eligibility was evaluated using Scott's method, and as a result, 40 documents were selected for analysis. Finally, we used a qualitative content analysis to synthesize the data using MAXQDA version 10. The findings showed that the political requirements for population reduction can be classified into four main themes of "Religious, scientific, and legal infrastructure", "Changes in the rules", "Institution building, programming and division of tasks", and "Information and service provision", with 11 sub-themes. Furthermore, the political requirements for an increasing population can be divided into six main themes of "Education & acculturation", "Legal dos, and don'ts", "Financial and non-financial support for families", "Structural and information infrastructure", "Health services", and "Stewardship", with 30 sub-themes. In this study, by an all-round look, and the analysis of policies of the last 70 years of Iran, it was determined how the population policies originate from the political-cultural background of society, and provide the ground for the changes in the cultural-social, political, and economic structures and as a result demographic change. In other words, the main requirements to formulate the population increase and decrease policies in Iran as a country with golden experiences to implement the population policies were shown; which can be helpful as a guide to formulate the population policies in Iran and provide a model for successful policy making in the countries with a similar background to Iran.

Factors facilitating and inhibiting the social participation of the elderly in health-oriented activities in Shiraz, Southern Iran

BACKGROUND

The social participation (SP) of the elderly is one of the factors that contribute to the improvement of their well-being. SP, one of the most important factors of active ageing, is mainly influenced by a number of facilitating or inhibiting factors.

AIMS

This study aimed to identify the factors that prevent and facilitate the SP of the elderly population in Iran.

METHODS

A cross-sectional study carried out in Shiraz, southern Iran in 2021. Participants were selected using a convenience sampling method. Shiraz is divided into 11 districts and the largest park in each district is selected for data gathering. The questionnaires were completed by 612 people aged over 60. Data were collected using the Canadian Elderly Survey Project scale and a health-related lifestyle questionnaire and were analyzed using t-test, ANOVA, Pearson's correlation, and ANCOVA.

RESULTS

The mean SP score of the elderly in Shiraz was 24.2 out of 60, which is below the midpoint. The results of the covariance analysis revealed that the SP had a significant relationship with the experience of physician consultation, cost barriers, age, marital status, income level, and education level (P < 0.001). Moreover, the results of Pearson correlation revealed a significant correlation between SP and different dimensions of health-oriented activities (< 0.001).

CONCLUSIONS

This study revealed that the main barriers to older people's participation in health-related activities are cost and access barriers, such as transportation issues. Moreover, higher income level and higher educational attainment have been recognized as the main facilitators of SP in the elderly. In this regard, it can be suggested to apply a combination of health promotion strategies, financial support programs, and development of optimal transportation infrastructure to increase the SP of the elderly.

Population-level risks of alcohol consumption by amount, geography, age, sex, and year: a systematic analysis for the Global Burden of Disease Study 2020

BACKGROUND

The health risks associated with moderate alcohol consumption continue to be debated. Small amounts of alcohol might lower the risk of some health outcomes but increase the risk of others, suggesting that the overall risk depends, in part, on background disease rates, which vary by region, age, sex, and year.

METHODS

For this analysis, we constructed burden-weighted dose-response relative risk curves across 22 health outcomes to estimate the theoretical minimum risk exposure level (TMREL) and non-drinker equivalence (NDE), the consumption level at which the health risk is equivalent to that of a non-drinker, using disease rates from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2020 for 21 regions, including 204 countries and territories, by 5-year age group, sex, and year for individuals aged 15-95 years and older from 1990 to 2020. Based on the NDE, we quantified the population consuming harmful amounts of alcohol.

FINDINGS

The burden-weighted relative risk curves for alcohol use varied by region and age. Among individuals aged 15-39 years in 2020, the TMREL varied between 0 (95% uncertainty interval 0-0) and 0·603 (0·400-1·00) standard drinks per day, and the NDE varied between 0·002 (0-0) and 1·75 (0·698-4·30) standard drinks per day. Among individuals aged 40 years and older, the burden-weighted relative risk curve was J-shaped for all regions, with a 2020 TMREL that ranged from 0·114 (0-0·403) to 1·87 (0·500-3·30) standard drinks per day and an NDE that ranged between 0·193 (0-0·900) and 6·94 (3·40-8·30) standard drinks per day. Among individuals consuming harmful amounts of alcohol in 2020, 59·1% (54·3-65·4) were aged 15-39 years and 76·9% (73·0-81·3) were male.

INTERPRETATION

There is strong evidence to support recommendations on alcohol consumption varying by age and location. Stronger interventions, particularly those tailored towards younger individuals, are needed to reduce the substantial global health loss attributable to alcohol.

FUNDING

Bill & Melinda Gates Foundation.

Determining Factors Influencing Specialty Preferences of Iranian Medical Doctors: A Qualitative Study

Background

The medical specialty choice of physicians directly affects the healthcare system, community wellbeing, and their own professional life. It is therefore important to identify its underlying factors to predict such medical career choices and to draw up a comprehensive evidence-based public health policy and health human resources planning. The present qualitative study aimed to identify these determinants of career choices through semi-structured interviews with medical doctors in the context of country-specific social and cultural characteristics.

Methods

The present qualitative study was carried out in 2019-2020 at Shiraz University of Medical Sciences (Shiraz, Iran). The target population was medical students, junior doctors, and medical residents. The purposive sampling method was used to recruit the participants and sampling continued until data saturation, i.e., no new information could be extracted. Data were collected through individual, face-to-face, semi-structured interviews and analyzed using the conventional content analysis method. Inductive thematic analysis was used to interpret the data based on which a thematic map was developed illustrating the factors influencing medical specialty preferences in Iran. Data trustworthiness was assessed according to the criteria proposed by Guba and Lincoln.

Results

Analysis of the interview data resulted in three main themes and fourteen sub-themes. The main themes were "Personal determinants", "Career-related factors", and "Interpersonal influences". The most important sub-themes were personal interests, income, and prestige.

Conclusion

The determinants influencing the specialty preferences of Iranian medical doctors are identified. Our findings will facilitate the development of a comprehensive evidence-based public health policy, health human resources planning, and appropriate medical education policy.

What do Iranian physicians value most when choosing a specialty? Evidence from a discrete choice experiment

BACKGROUND

Choosing a specialty by physicians is fundamentally linked to the performance of health systems and public health outcomes. Identifying the determinants of specialty selection is important to health policy for targeting resources and planning the development of services. This study examined preferences of Iranian physicians for medical specialty using a discrete choice experiment (DCE) method.

METHODS

In this study, the attributes of the DCE were determined using rigorous qualitative approach. Then we applied D-efficiency criteria to design the DCE and validated it at a pilot study. In the final survey, we recruited participants from six Iranian provinces and analyzed data using conditional logit model. We estimated willingness to pay (WTP) for non-monetary attributes.

RESULTS

The WTP analysis revealed that the most important non-monetary attributes in the selection of a specialty were job burnout, opportunity for procedural activities, and job prestige. The results imply that the attributes that were related to the quality of personal life was more important only for physicians who preferred to choose non-surgical specialties.

CONCLUSIONS

The findings demonstrate that traditional gender patterns of specialty selection are changing and quality of personal life characteristics might be the most important factor when developing policies to recruit physicians into non-surgical specialties.

A National Survey on the characteristics of Iranian General Practitioners and Their Preferred Specialty: A Need to Transition toward Preventive Medicine

Background:

The shortage and unbalanced distribution of physicians has adverse effects on the provision of equitable services at all levels of health care and especially at the prevention and primary care levels. The choice of specialty can seriously change the structure and composition of the physician workforce. Therefore, this study aimed to investigate the relationship between background characteristics of Iranian general practitioners' (GPs) and their preferred specialty fields.

Methods:

In this mixed-method study, first, 12 medical doctors participated in a nominal group technique to determine the most important background characteristics that affect GPs' preferences for specialty selection. In the second phase, we conducted a survey among 680 GPs in six provinces from different geographic regions. We gathered data using a researcher-made checklist and analyzed them using an adjusted multivariate regression.

Results:

The adjusted analysis showed that being female, being married, being in an older age group, having children, graduation from universities located in the provincial centers, and decision for living and practicing in the less-populated areas were significantly associated with the Iranian GPs' preferences for non-surgical specialties.

Conclusions:

This study provided evidence that could inform national health workforce policy-makers to avoid unbalanced distribution of physicians and accordingly to ensure the provision of equitable services at all levels of healthcare and especially at the primary care level. Other effective factors on the selection of specialty should be evaluated at the national level using specific surveys and econometrics studies such as discrete selection experiment to move toward preventive medicine.

Key Barriers to the Provision and Utilization of Mental Health Services in Low-and Middle-Income Countries: A Scope Study

Inadequate attention has been given to the provision of mental health (MH) services especially in low-and middle-income countries (LMICs). This study was aimed to identify key barriers to provide and utilize MH services in LMICs. A comprehensive search on7 important online databases was conducted for key barriers to the provision and utilization MH services in LMICs from Jan 2000 to Nov 2019. Five-step Arksey and O'Malley guideline was used for scope study. The extracted data were synthesized using a qualitative content analysis and thematic network. Three main themes identified as barriers to the provision of MH services in LMICs, namely resource and administrative barriers, information and knowledge barriers, as well as policy and legislation barriers. Also attitudinal barriers, structural barriers, knowledge barriers, and treatment-related barriers were four main themes emerged regarding the challenges of utilization of MH services. Equitable access to MH services in LMICs is influenced by many barriers in both provision and utilization sides. In order to alleviate these problems, health systems could adopt some strategies including integration of MH into the general health policy, improvement of public MH awareness, developing anti-stigma programs, reallocation of health resources toward high-priority MH needs, developing community-based insurance, as well as integration of MH services into all levels of health-care systems. The success of intervention strategies depends on the weight of these barriers in different socio-economic contexts.

A Protocol for Developing a Discrete Choice Experiment to Elicit Preferences of General Practitioners for the Choice of Specialty

OBJECTIVES

Discrete choice experiment (DCE) has been increasingly used in studies investigating preferences of the health workforce. This pilot study aimed to provide a comprehensive protocol for design and quality assessment of a DCE to elicit preferences of general practitioners for the choice of specialty.

METHODS

We conducted 3 rigorous qualitative studies, including a review of literature, qualitative interviews, and focus group discussion to develop attributes and levels of the DCE. Then a D-efficient fractional factorial design was applied to generate choice tasks and to block them into 4 equal versions using SAS software. Two hundred and forty general practitioners participated in a pilot study conducted to evaluate the quality of the instrument using 7 tests.

RESULTS

The qualitative studies resulted in the development of 8 attributes and 24 levels. Experimental design led to the generation of 36 choice tasks divided into 4 blocks. The pilot study revealed that the instrument has validity and reliability and also indicated that the design is comprehensible and feasible.

CONCLUSIONS

This study provided an integrated, comprehensive framework for development and quality assessment of a DCE that could be used in other studies. The pilot study indicated that the instrument is of sufficient quality because it was developed using rigorous qualitative studies and accurate experimental design method.

The association between the score of adult attention-deficit/hyperactivity traits and risky driving behaviors with alcohol intake and narcotics consumption among Iranian motorcyclists

BACKGROUND

Motorcycle drivers are among the most vulnerable road users, accounting for a large proportion of global traffic accidents. This study aimed to investigate the association between the score of adult attention-deficit/hyperactivity (ADHD) traits and risky driving behaviors (RDB) with alcohol intake (AI) and narcotics consumption (NC) among motorcyclists in Iran.

METHODS

This multi-center cross-sectional study encompassed 1747 motorcyclists from three cities in Iran. A random sampling method was applied in this study, and the required data was collected using three standard questionnaires on ADHD, substance abuse, and RDB. Independent sample t-test, covariance analysis, and quantile regression (QR) were used to analyze the data.

RESULTS

The results of t-test and analysis of covariance indicated that AI and NC were significantly associated with ADHD score and RDB among the motorcycle drivers. Additionally, the QR models showed that these effects were significant at all quantiles of ADHD and RDB, even for individuals who were at lower quantiles.

CONCLUSIONS

Considering the potential dangers of driving after AI and NC, appropriate measures should be adopted before certifying a driving license to screen ADHD as a predisposing factor for substance abuse and RDB. Furthermore, it is essential to equip traffic police with adequate diagnosis kits and establish heavy penalties for the offenders. In this regard, all interventions aimed to reduce traffic accidents among motorcycle drivers should be done considering the interrelationship between ADHD, RDB, and substance abuse.

A thematic network for factors affecting the choice of specialty education by medical students: a scoping study in low-and middle-income countries

BACKGROUND

Medical specialty selection is a complex phenomenon that can affect the performance of health systems, community health, and physicians' lives. It is essential to identify the key factors influencing the choice of specialty for evidence-based policymaking. This scoping review aimed to provide a comprehensive map of evidence regarding the factors influencing the choice of specialty by medical students (MS) in low-and middle-income countries (LMICs) and also to determine knowledge gaps.

METHODS

We carried out a systematic search on six online databases from January 2000 to May 2020. We used a five-step scoping review method proposed by Arksey and O'Malley. We synthesized the data using a quantitative content analysis approach. Then, we developed a thematic network as a conceptual map for a better understanding of the concept.

RESULTS

The analysis led to the development of five main themes, including personal determinants, life fulfillment aspects, influential career aspects, educational determinants, and interpersonal effects. Moreover, the most frequent sub-themes were specific personal factors, controllable lifestyle, quality of working life, and future working conditions.

CONCLUSION

This review provided evidence on the factors influencing the choice of specialties. In order to support physician workforce policy with more precise evidence, it is necessary to explore the weight and ranking of these factors based on the socioeconomic contexts of the countries. This study also indicated that factors such as ethical values, various aspects of medical philosophy, and immigration tendencies are areas for further investigations.

Association between Adult Attention-Deficit/Hyperactivity Disorder and Driving Behaviors among Iranian Motorcyclists

Objective

To investigate the association between attention-deficit/hyperactivity disorder (ADHD) score and driving behaviors among motorcycle drivers in Iran.

Methods

This multi-center cross-sectional study was conducted on 1747 motorcyclists in three cities of Iran. We used a random sampling method in this study and gathered data using two standard questionnaires. Data were presented using descriptive statistics, also t-test, and ANOVA used for analysis.

Results

The mean age of participants was 27.41±8.80 years. ADHD scores of the participants ranged from 0 to 87, with a mean score 31±15.86. All risky driving behaviors (RDBs) were significantly associated with a higher mean of ADHD score. For example, driving with illegal speed (p<0.001), not wearing a crash helmet (p=0.016), driving while exhausting (p<0.001), talking with other passengers (p<0.001), being fined by the police in the past year (p=0.028), and maneuvering while driving (p<0.001) were related to a higher mean of ADHD score.

Conclusion

All RDBs were significantly associated with the ADHD score among motorcyclists in Iran. In this regard, health care providers should inform people with ADHD about the negative consequences associated with driving and ADHD. Public health policymakers should consider management of ADHD through a comprehensive approach to improve driving performance and competencies among motorcyclists in order to decrease RDBs and traffic accidents.

Analyzing the interaction of main components of hidden curriculum in medical education using interpretive structural modeling method

BACKGROUND

Hidden curriculum (HC) is considered as unintended learning experiences in medical education (ME). This may include values, norms, beliefs, skills, and knowledge which could potentially influence learning outcomes. HC has key components that must be identified and considered properly by individuals and organizations involved in ME.

OBJECTIVES

This study aimed to determine the main components of hidden curriculum in medical education (HCME) and the interrelationships among them.

METHODS

In this mixed-method study initially we performed a scoping review and determined the main components of HCME using qualitative content analysis approach. Then, the interrelationships among these components were investigated using Interpretive Structural Modeling (ISM).

RESULTS

Ten key components for HCME were identified in scoping review. We classified them into four main categories including structural, educational, cultural, and social factors. The ISM analysis revealed that organizational rules and structure, dominant culture of educational environments, teaching and assessment approaches, as well as clinical and educational physical setting were the independent or driving factors. While, social components were dependent and influenced by basic components.

CONCLUSION

The ISM model indicated that role modeling behaviors and interpersonal relationships (social factors) are under influence of underlying organizational and educational factors. These results should be considered at all stages of educational management including planning process, implementation of the programs, and development of formal curricula. According to the importance of contextual factors, components of HC must be analyzed and interpreted based on the specific conditions of each educational institution.

Results of a Campaign for Motorcycle Helmets Advocacy in a City in Southwest of Iran; A Population-Based Intervention Study

Objective:

We conducted a triple phase project for motorcycle helmets advocacy in Darab, a city in southwest Iran. The aim of this study was to evaluate the effect of the project on decreasing the hazards of motorcycle accidents.

Methods:

Using a questionnaire, data for ICU admission rates, hospital costs for patients who required ICU admission, rate of helmet usage, mortality and the duration of ICU care for patients admitted to Darab hospital due to motorcycle accidents in Winter 2015 (before conducting the project) and Winter 2016 (after conducting the project) were gathered and compared. This feature was also separately done for patients younger than 17 years.

Results:

The rate of wearing helmets increased significantly in winter 2016 (from 3.4 % to 33%). Also ICU admission rate due to head trauma was significantly decreased after the project was done (from 14.5 % to 4%). However, hospital costs for patients required ICU admission were increased in winter 2016. This increase, though not significant, seems to be due to an increase in health service expenses in the year 2016 as compared with the year 2015. The mortality rate was not significantly changed between the two mentioned years results. For patients younger than 17 years, no ICU admissions were needed in winter 2016.

Conclusion:

Even a short period of intervention can have positive effects on increasing the safety of motorcycle drivers.

Income inequality among general practitioners in Iran: a decomposition approach

BACKGROUND

General practitioners (GPs) are among the most important resources of healthcare system and public health is considerably influenced by the function of this group. Income inequality among GPs considerably affects the motivation and performance of this group. The present study aims to examine the income inequality among Iranian GPs in order to provide the necessary evidence for health human resource policy.

METHODS

In this cross-sectional study, the distribution of income and wage inequality among GPs was investigated using income quintiles. We also used the Dagum's model to analyze the inequality between different groups of GPs through the decomposition of the Gini coefficient. Moreover, a regression model was used to determine the effective factors on GPs' income.

RESULTS

The results of this study indicated that income and wages of GPs in the highest quintile were eight times more than those of doctors at the lowest quintile. Regression estimates showed that factors such as gender, practice setting, and activity as the family physician (P < 0.001) were effective on income of GPs; and also male and self-employed GPs had significantly more wage (P < 0.001). Total Gini coefficient of GPs' income and wage were estimated at 0.403 and 0.412, respectively. Highest monthly income was found in GPs with 16-20 years practice experience ($8358) based on Purchasing Power Parity (PPP), male ($8339 PPP), and self-employed GPs ($8134 PPP) subgroup. However, the female ($5389 PPP) and single ($5438 PPP) GPs had the lowest income. Population share; income/wage share; income/wage mean; Gini coefficient; and within, between and overlap decomposed components of Gini coefficient are also reported for each GPs subgroups.

CONCLUSIONS

We found significant inequalities in income and wages among Iranian GPs. Adjustment of income based on working hours indicated that one of the most common causes of income inequality among GPs in Iran was different workloads among different groups. Since the motivation and function of physicians can be influenced by income inequality, policymakers in the health system should consider factors increasing such inequalities.

Prevalence and risk factors of alcohol and substance abuse among motorcycle drivers in Fars province, Iran

Background:

Motorcycle accidents are the most common cause of injuries, accounting for 49.1% of all trauma cases each year worldwide. Different risk factors for incidence of motorcycle accidents have been identified. Two main factors that increase the risk of traffic accidents among motorcyclists are alcohol and substance abuse. The aim of this present study is to investigate the prevalence of alcohol and substance abuse and its relationship with other risky driving behaviors among motorcycle drivers in Fars province.

Methods:

This is a cross sectional study which is performed at Fars province of Iran in 2017. Data from motorcycle drivers were collected using a standard questionnaire in three major cities of Fars province including Shiraz, Jahrom, and Darab at different times of the day. The data includes consumption of alcohol and other substances two hours before driving and some of the risky behaviors during driving.

Results:

A total of 1195 drivers with a mean ± SD age of (28.3 ± 8.56) years participated in the study. The prevalence of alcohol, opium, and amphetamines consumption among participants was 13.2%, 4.6% and 1.3% respectively. Prevalence of alcohol or substance consumption two hours before driving was 17.5%. Consumption of alcohol or substance two hours before driving was significantly associated with risky driving behaviors such as using mobile phone during driving, maneuvering while driving, history of driving fines in the past year, and driving over the speed limit (P <0.001). It was also associated with carelessness about safety such as driving with technical defects, not wearing a crash helmet, and history of accident in the past year (P <0.008).

Conclusions:

It seems that alcohol and substance abuse has association with other risky driving behaviors among motorcycle drivers. Thus, it is suggested to screen motorcycle drivers for substance and alcohol abuse in order to identify motorcycle drivers at a higher risk of road traffic accidents more efficiently while taking the cost-effectiveness of any ASA assessment program into consideration.

Keywords:

Alcohol drinking, Substance-related disorders, Motorcycle, Iran

Attention Deficit Hyperactivity Disorder as a determinant of motorcycle accidents in Fars province of Iran

Background:

Road traffic accident is a serious public health problem in the world. Iran is among the countries with the highest rate of traffic accident causing high mortality and morbidity. Although the number of motorcycle drivers is less than car drivers in Iran, a major part of mortality and morbidity belongs to motorcycle drivers especially in rural areas. Attention Deficit Hyperactivity Disorder is one of the predicting factors for risky behaviors and accidents among the motorcyclists. The aim of this study was to investigate the relationship between motorcycle accidents and attention deficit hyperactivity disorder in Shiraz, Iran.

Methods:

In this cross sectional study was done in 2017 total number of 1195 motorcyclist from Fars province were included. In this study we collected the data using the Persian version of Conners Adult Attention Deficit Hyperactivity Disorder (ADHD) Rating Scales (CAARS) 30-item questionnaire and a checklist designed by the researchers for demographic variables. SPSS 22 was used to analyze the data.

Results:

All the study participants were male and the mean age was 28.28±8.56 years. 16.7% of the motorcyclists had motorcycle driving license, 25.4% and 23.3% had the experience of driving fines and history of accident respectively. The mean score of hyperactivity disorder was 32.3±16.8. The mean score of ADHD was higher among the motorcyclists with the history of accident in the past year (P=0.018), those with speeding over the limit, those with maneuvering while driving, drivers who used mobile phone during driving, and those who had more pleasure while driving motorcycle (p<0.001).

Conclusions:

Findings of this study indicated that traffic accidents increased with the higher scores of ADHD in motorcyclists, and hyperactivity may be considered as a risk factor of driving risky behaviors such as exceeding the speed limits, illegal overtaking, and maneuvering while driving and finally accidents of motorcyclists.

Keywords:

Traffic Accident, Motorcyclists, Attention Deficit/Hyperactivity Disorder

Factors associated with Motorcyclist risky riding behaviors in southern Iran

Background:

Methods:

Results:

Conclusions:

Keywords:

The impact of environmental and demographic factors on nursing job satisfaction

Objective

This study aims to evaluate all aspects of job satisfaction in registered nurses working in different hospitals in Shiraz, Iran.

Methods

This cross-sectional study was performed during February to August 2015 in Shiraz, Iran. It comprised of 371 registered nurses working in government and private hospitals using multi-stage cluster sampling. Job satisfaction was evaluated using 5 items of the Job Descriptive Index (JDI) consisting of 63 questions developed by Smith, Kendall, and Hulin (1969). Statistical tests including independent sample t test and one-way analysis of variance (ANOVA) were used in order to identify the relation between job satisfaction, and demographic features and work environment. Data were analyzed by SPSS version 15.0, using descriptive statistics, independent-samples t-test, and ANOVA.

Results

Our findings showed no relationship between demographic variables and job satisfaction. However, a significant association was observed between environmental aspects such as work rotation (fixed versus rotating) nurse’s status (staff vs. supervisors), type of hospitals (governmental vs. private) and work (p<0.01), promotion (p<0.02) and pay (p<0.01) items respectively; however, type of hospital was deemed exempt regarding promotion. Also regarding the number of shifts per week, nurses with more than eight shifts present a lower mean score of satisfaction about pay significantly (p=0.03).

Conclusion

The results concerning younger nurses have different types of satisfaction based on several environmental factors. Nurses’ policy makers must pay more attention to nurses’ satisfaction and focus on reducing the various inequalities.

Burden of traffic accidents among pedestrians of Fars province, southern Iran; estimate of years of life lost in a sample of Iranian population from 2009 to 2013

PURPOSE

Traffic injuries are among the leading causes of mortality and morbidity worldwide. Pedestrians have been considered as a high-risk group among road users, especially in middle- or low-income communities. This study attempted to determine the burden of pedestrians' fatalities in Fars, the southern province of Iran using years of life lost (YLL) approach.

METHODS

The data used in this study were retrieved from Fars Forensic Medicine Organization database on pedestrian traffic accidents. The YLL from 2009 to 2013 was estimated using the method presented by World Health organization. Some epidemiological characteristics of pedestrians' fatalities were analyzed by SPSS.

RESULTS

Although YLL among 1000 male pedestrians decreased from 2.5 in 2009 to 1.5 in 2013, it increased from 0.9 to 2.1 among 1000 females during the same period. Higher proportion of death was found in female, illiterate, and married pedestrians (p < 0.001). In addition, mortality was higher in pedestrians living the cities, during daytime, at home, and in hospitals (p < 0.001).

CONCLUSION

Consistent with the global trends, burden of pedestrian accidents in Fars was also exceptionally high. Considering the national and cultural aspects of different countries, improving the safety of pedestrians demands a multi-dimensional approach with interventional factors concerning policies, rules, pedestrians, motor vehicles and environmental conditions taken into consideration.

Epidemiological characteristics of fatal pedestrian accidents in Fars Province of Iran: a community-based survey

OBJECTIVE

To determine the epidemiological characteristics of fatal pedestrian accidents in Fars Province of Iran.

METHODS

This cross-sectional study was conducted in Fars Province of Iran during a 29-month period from March 2009 to July 2011. The data were from the Fars Forensic Medicine Registry. In 4 923 recorded road traffic accident fatalities, 971 deaths were due to pedestrian accidents. The demographic and accident-related information were analyzed by SPSS version 11.5. P value less than 0.05 was considered significant.

RESULTS

The mean age of decedents was (47.2+/-26.2) years, ranging from 6 months to 103 years old. Males accounted for 69.8% of all deaths. Fatal accidents were most common in September; 56.1% of the fatal injuries occurred on intracity roads and 33.1% on extracity roads. Fatal head injuries were present in 60.54% of cases. Evaluation of the injury site and the cause of death found that they were significantly associated with age, interval between injury and death. Besides, the type of roads played an important role in mortality.

CONCLUSION

Although the clinical management of trauma patients has been improved in our country in the recent decade, decreasing the burden of injuries needs coordination among trauma system organizations.

Fatal motorcycle accidents in Fars Province, Iran: a community-based survey

OBJECTIVE

To identify the main characteristics of victims of motorcycle accidents in Fars Province, Iran.

METHODS

This cross-sectional study was conducted in Fars Province which has the fourth largest population of all 31 provinces in Iran from March 2009 to June 2010. We included data from all 542 recorded cases of fatalities due to motor vehicle accidents. Data were recorded from the forensic medicine registry consisting of demographic and accident-related information. Demographic information consisted of name, age, sex, status of fatal victim (motorcycle driver vs passenger) and educational level.

RESULTS

Of the 2 345 autopsy records from the forensic medicine archives, 542 (23.1%) gave the cause of death as motor vehicle accidents. Mean age of these victims was (31.4+/-6.5) years, and the male to female ratio was 28. Head injury was the most common cause of death in these victims, and overall they tended to have a low level of education. Motorcycle accidents frequently involved younger age groups (15-35 years), and head trauma related with non-use of a helmet was the most common cause of death.

CONCLUSIONS

Head injury is frequent among victims in the province we studied. This situation may be related to the victims' low socioeconomic status and little education regarding traffic laws leading to speeding and disregard of these laws along with their weak enforcement.

Prevalence and risk factors of alcohol and substance abuse among motorcycle drivers in Fars province, Iran

PURPOSE

The aim of this present study is to investigate the prevalence of alcohol and substance abuse (ASA) and its relationship with other risky driving behaviors among motorcycle drivers.

METHODS

This is a cross sectional study which is performed at Shiraz city of Iran. Data from motorcycle drivers were collected using a standard questionnaire in eight major streets at different times of the day. The data includes consumption of alcohol and other substances two hours before driving and some of the risky behaviors during driving.

RESULTS

A total of 414 drivers with a mean ± SD age of (27.0 ± 9.3) years participated in the study. Alcohol or substance consumptions two hours before driving was significantly associated with risky driving behaviors such as using mobile phone during driving, poor maneuvering, and driving over the speed limit (both p < 0.001). It was also associated with carelessness about safety such as driving with technical defects (p < 0.001) and not wearing a crash helmet (p=0.008).

CONCLUSION

Screening for alcohol and substance consumption among motorcycle drivers is an efficient way to identify drivers that are at a greater risk for road traffic accidents.

The prevalence and effective factors of crash helmet usage among motorcyclists in Iran

Background:

Crash helmet plays an important role in protecting the deriver's head during crashes and reduces the rate of severe injuries and fatalities. Although it has been proved that wearing the crash helmet can save the deriver’s life by around 42%; previous studies showed that the rate of wearing crash helmet has not been acceptable in Iran. Due to the huge number of motorcyclists on the roads in Iran, the use of crash helmet is an important area of research. The aim of this study was to assess the factors that could possibly relate to or affect the use of crash helmet by the motorcyclists.

Methods:

This is an observational study on 414 motorcyclists in Shiraz, Southern Iran. All participants completed a questioner containing demographic features, crash helmet use, motorcycle license, and the reasons for using motorcycles.

Results:

All the participants were males and aged from16 to 64 years with mean age 27±9.28. The results of logistic regression model revealed that only the drivers who had motorcycle license (OR=2.73, C.I: 1.40-7.24), employed the motorcycle for reasons other than pleasure (OR=3.18, C.I: 1.42-7.37) and been driving for 10 or more years (OR=1.92 95% C.I: 1.12-3.30) had greater rate of wearing crash helmet. Interestingly, educational levels, age, and other demographical variables had no relationship with crash helmet usage.

Conclusions:

It is believed that in order to increase the rate of crash helmet use, it is necessary to enact obligatory requirement for driving license by motorcyclists and increase the legal age for motorcycle driving.

The Prevalence of Substance use and Associated Risk Factors Among University Students in the City of Jahrom, Southern Iran

Background:

Substance use among college students in Iran is a serious problem. Determining the pattern of substance use among University students is an important issue for implementing prevention and treatment programs.

Objectives:

The present survey attempts to determine the prevalence of substance usage and associated risk factors among the students of Jahrom University of Medical Sciences and Islamic Azad University of Jahrom, Jahrom, Iran.

Patients and Methods:

This cross-sectional study was carried out from December 2012 to February 2013 and included 1149 randomly selected students of two Jahrom universities. A standard questionnaire was used for data gathering. Data were analyzed using the SPSS version 15 for Windows. T-test and Chi-square T-test and Chi-square and Logestic regression tests were used for data analysis.

Results:

Tobacco (28.3%), alcohol (13.0%), and cannabis and marijuana (5.2%) were the most common substances used by the students. The prevalence of substance use among the male students was significantly higher (OR: 1.5, 95%CI: 1.42 - 2.68, P < 0.001). The risk of at least single episode of substance usage was higher among the students which were living alone (OR: 3.03, 95%CI: 1.74 - 5.28, P < 0.001) The most important motivators for beginning substance use were curiosity, in 46.4%, and seeking pleasure, in 28.8%.

Conclusions:

Substance usage is considered as a risk factor for students’ health among University students in Iran. Design of educational courses addressing the detrimental effects and dire consequences of substance usage could help to improve control programs. Universities could improve their drug abuse control programs by focusing on the high risk groups determined by relevant studies.

Burden of transportation injuries among children and adolescents of Fars province: analysis of Iran's 20-year trends

OBJECTIVES:

Transportation injuries are among the top ten causes of burden of disease in all age groups worldwide. The burden of transportation injuries among children and adolescents in Iran is higher than the world average and that of other developing countries. The aims of this study were to investigate the burden of transportation injuries in children and adolescents in the province of Fars in Iran from 2009 to 2013, and to report the burden of these kinds of injuries in children and adolescents in Iran from 1990 to 2010.

METHODS:

The number of deaths due to transportation injuries and the location of fatal injuries in the province of Fars in Iran from 2009 to 2013 were analyzed using data from the Fars Forensic Medicine Organization. The 20-year trend in the burden of transportation injuries in Iran was analyzed using data from the Institute for Health Metrics and Evaluation.

RESULTS:

Similarly to the long-term trend in Iran, the burden of transportation injuries among the male population of Fars province was generally higher than in females. Most fatal accident injuries occurred on roads (males: n=4151, 61.51%; females: n=1182, 65.95%) and in urban areas (males: n=1994, 29.54%; females: n=473, 26.40%).

CONCLUSIONS:

Considering that children and adolescents are high risk groups for transportation injuries, adopting an effective comprehensive multi-sectoral approach, including enacting and enforcing appropriate laws and regulations, developing general knowledge, and facilitating the availability of Personal protective equipment, could be helpful for reducing the burden of these injuries.

Time analysis of fatal traffic accidents in Fars Province of Iran

OBJECTIVE

To analyze the time factor in road traffic accidents (RTAs) in Fars Province of Iran.

METHODS

This study was conducted in Fars Province, Iran from November 22, 2009 to November 21, 2011. Victims'information consisted of age, sex, death toll involving dri- vers or passengers of cars, motorcycles and pedestrians, and site of injury etc. Accidents were analyzed in relation to hour of the day, season of the year, lighting condition including sunrise, sunset, daytime and nighttime.

RESULTS

A total of 3 642 deaths (78.3% were males, and the ratio of males to females was about 3.6:1) were studied regarding their autopsy records. There was a steady increase in fatal accidents occurring at midnight to 15:59. The risk of being involved in a fatal traffic accident was higher for those injured between 4:00 to 7:59 than at other times (OR equal to 2.13, 95% CI 1.85-2.44). The greatest number of fatal RTAs took place in summer. Mortalities due to RTA during spring and summer were more pronounced at 20:00 to 23:59 and midnight to 3:59, whereas mortalities in fall and winter were more pronounced from 12:00 to 15:59.

CONCLUSION

The high mortality rate of RTA is a major public health problem in Fars Province. Our results indicate that the time is an important factor which contributes to road traffic deaths.

An epidemiologic survey of road traffic accidents in Iran: analysis of driver-related factors

OBJECTIVE

Road traffic accident (RTA) and its related injuries contribute to a significant portion of the burden of diseases in Iran. This paper explores the association between driver-related factors and RTA in the country.

METHODS

This cross-sectional study was conducted in Iran and all data regarding RTAs from March 20, 2010 to June 10, 2010 were obtained from the Traffic Police Department. We included 538 588 RTA records, which were classified to control for the main confounders: accident type, final cause of accident, time of accident and driver-related factors. Driver-related factors included sex, educational level, license type, type of injury, duration between accident and getting the driving license and driver's error type.

RESULTS

A total of 538 588 drivers (91.83% male, sex ratio of almost 13:1) were involved in the RTAs. Among them 423 932 (78.71%) were uninjured; 224 818 (41.74%) had a diploma degree. Grade 2 driving license represented the highest proportion of all driving licenses (290 811, 54.00%). The greatest number of accidents took place at 12:00-13:59 (75 024, 13.93%). The proportion of drivers involved in RTAs decreased from 15.90% in the first year of getting a driving license to 3.13% after 10 years'of driving experience. Neglect of regulations was the commonest cause of traffic crashes (345 589, 64.17%). Non-observance of priority and inattention to the front were the most frequent final causes of death (138 175, 25.66% and 129 352, 24.02%, respectively). We found significant association between type of accident and sex, education, license type, time of accident, final cause of accident, driver's error as well as duration between accident and getting the driving license (all P less than 0.001).

CONCLUSION

Our results will improve the traffic law enforcement measures, which will change inappropriate behavior of drivers and protect the least experienced road users.

Dependence of the geriatric depression on nutritional status and anthropometric indices in elderly population

OBJECTIVE

Malnutrition and depression are highly prevalent in the elderly and can lead to unfavorable outcomes. The aims of the current study were to determine the association between malnutrition and depression and also to find any correlation of depression with some anthropometric indices in free living elderly.

METHOD

In this cross-sectional study, 337 elderly subjects (193 females) were selected using cluster sampling. Depressive symptoms and nutritional status were determined by the Geriatric Depression Scale (GDS) and the Mini-Nutritional Assessment (MNA) scores questionnaires, respectively. Anthropometric indices were measured all in standard situations. Chi squared test and t-test were used when necessary. Pearson correlation coefficients were calculated for linear relations between variables.

RESULTS

Of all the total subjects, 43.62% were depressed; and of whom, 48.01% were malnourished or at risk of malnutrition. GDS had a significant negative dependence with the MNA for the entire sample (r=-0.58, p <0.0001). However, there was no significant correlation between age and GDS or MNA scores. Moreover, the mean GDS scores differed significantly between men and women (p <0.05), and women were more depressed than men (27.9% vs. 15%, respectively). The elderly subjects living in urban areas were more depressed than those living in rural areas (39.46% vs. 3.85% respectively).

CONCLUSION

The results of the present study revealed a high prevalence of depression and malnutrition among old subjects. Moreover, depression was associated with worsening of nutritional status. The mechanism of this association needs further study.

Time analysis of fatal traffic accidents in Fars Province of Iran

OBJECTIVE

To analyze the time factor in road traffic accidents (RTAs) in Fars Province of Iran.

METHODS

This study was conducted in Fars Province, Iran from November 22, 2009 to November 21, 2011. Victims'information consisted of age, sex, death toll involving dri- vers or passengers of cars, motorcycles and pedestrians, and site of injury etc. Accidents were analyzed in relation to hour of the day, season of the year, lighting condition including sunrise, sunset, daytime and nighttime.

RESULTS

A total of 3 642 deaths (78.3% were males, and the ratio of males to females was about 3.6:1) were studied regarding their autopsy records. There was a steady increase in fatal accidents occurring at midnight to 15:59. The risk of being involved in a fatal traffic accident was higher for those injured between 4:00 to 7:59 than at other times (OR equal to 2.13, 95% CI 1.85-2.44). The greatest number of fatal RTAs took place in summer. Mortalities due to RTA during spring and summer were more pronounced at 20:00 to 23:59 and midnight to 3:59, whereas mortalities in fall and winter were more pronounced from 12:00 to 15:59.

CONCLUSION

The high mortality rate of RTA is a major public health problem in Fars Province. Our results indicate that the time is an important factor which contributes to road traffic deaths.

Epidemiological characteristics of fatal pedestrian accidents in Fars Province of Iran: a community-based survey

OBJECTIVE

To determine the epidemiological characteristics of fatal pedestrian accidents in Fars Province of Iran.

METHODS

This cross-sectional study was conducted in Fars Province of Iran during a 29-month period from March 2009 to July 2011. The data were from the Fars Forensic Medicine Registry. In 4 923 recorded road traffic accident fatalities, 971 deaths were due to pedestrian accidents. The demographic and accident-related information were analyzed by SPSS version 11.5. P value less than 0.05 was considered significant.

RESULTS

The mean age of decedents was (47.2+/-26.2) years, ranging from 6 months to 103 years old. Males accounted for 69.8% of all deaths. Fatal accidents were most common in September; 56.1% of the fatal injuries occurred on intracity roads and 33.1% on extracity roads. Fatal head injuries were present in 60.54% of cases. Evaluation of the injury site and the cause of death found that they were significantly associated with age, interval between injury and death. Besides, the type of roads played an important role in mortality.

CONCLUSION

Although the clinical management of trauma patients has been improved in our country in the recent decade, decreasing the burden of injuries needs coordination among trauma system organizations.

Fatal motorcycle accidents in Fars Province, Iran: a community-based survey

OBJECTIVE

To identify the main characteristics of victims of motorcycle accidents in Fars Province, Iran.

METHODS

This cross-sectional study was conducted in Fars Province which has the fourth largest population of all 31 provinces in Iran from March 2009 to June 2010. We included data from all 542 recorded cases of fatalities due to motor vehicle accidents. Data were recorded from the forensic medicine registry consisting of demographic and accident-related information. Demographic information consisted of name, age, sex, status of fatal victim (motorcycle driver vs passenger) and educational level.

RESULTS

Of the 2 345 autopsy records from the forensic medicine archives, 542 (23.1%) gave the cause of death as motor vehicle accidents. Mean age of these victims was (31.4+/-6.5) years, and the male to female ratio was 28. Head injury was the most common cause of death in these victims, and overall they tended to have a low level of education. Motorcycle accidents frequently involved younger age groups (15-35 years), and head trauma related with non-use of a helmet was the most common cause of death.

CONCLUSIONS

Head injury is frequent among victims in the province we studied. This situation may be related to the victims' low socioeconomic status and little education regarding traffic laws leading to speeding and disregard of these laws along with their weak enforcement.

Necessity of admissions in selected teaching university affiliated and private hospitals during 2007 in Shiraz, Iran

BACKGROUND

The use of acute hospital beds is an issue of concern both to policy-makers and practitioners. In most countries attempts are underway to improve efficiency in this sector.

METHODS

One of the most widely used instruments for assessing inappropriate hospital use is the Appropriateness Evaluation Protocol, which consists of a set of standards based on objective criteria relating the condition of the patient to the clinical services received. The aim of this study was to measure inappropriateness of admission and inpatient stays at four major hospitals in Shiraz, Iran.

RESULTS

The results showed that 22% of the total admissions in four hospitals were rated as inappropriate. The most as well as the least inappropriate admissions were found in both teaching university affiliated hospitals. Our data has shown that a total of 29.6% (average 6.40%) of the hospital stays in the study population were judged to be inappropriate. The result of the Least Significant Difference Test indicated a significant association between the mean days of inappropriate stay and turn of admission in all hospitals. In the four hospitals, a significant association was observed between the inappropriateness of hospital stay, costs, and length of stay.

CONCLUSION

Considering the findings of this study, in addition to other studies in Iran and other countries, we can conclude that the factors involving inappropriate admission of patients to hospitals are mostly similar. In order to solve this problem we can use strategies such as: improving the performance of the referral system, using standard criteria for an appropriate evaluation protocol by the medical staff, and extending outpatient diagnostic services to reduce inappropriate hospitalization.