Environmental, Spatial, and Sociodemographic Factors Associated with Nonfatal Injuries in Indonesia

A Comprehensive Analysis of Multi-Vehicle Crashes on Expressways: A Double Hurdle Approach

To maintain safe expressways, it is necessary to investigate the causes of severe traffic accidents and establish a strategy. This study aims to analyze crashes and identify the influence of crash-risk factors on multi-vehicle (MV) crashes. Crashes involving three types of vehicles namely passenger cars, buses, and freight trucks were analyzed using a seven-year data spanning 2011 to 2017 which consists of crashes that occurred on expressways in South Korea. We applied a double hurdle approach in which a model consists of two estimators: The first estimation, which is a binary logit model selects MV crashes from the dataset; and the second estimation which is a truncated regression model estimates the number of vehicles involved in the MV crash. We found that driver traffic violations such as the improper distance between vehicles, reversing and passing increases the probability of MV crashes occurring. MV crashes in tunnels and mainlines were found to be positively correlated with the number of vehicles involved in the crash, whereas fewer vehicles were involved in MV crashes at ramps and toll-booths. Further, we found that the hurdle model with an exponential form of conditional mean of the latent variable provides better estimation parameters.

Epidemiological Characteristics of Work-Related Ocular Trauma among the Carpenters in Medan, Indonesia

BACKGROUND

Medan is the capital of North Sumatera Province and the most industrialised area of North Sumatera. One of the largest industries in Medan is the wooden industry. Ocular trauma is often happened in Medan and causes a serious problem.

AIM

This study aimed to analyse the correlation between ocular trauma among the carpenters and the using of eye protection during work and educational level.

METHODS

This study is conducted among the carpenters that work in the wooden industry. There were 30 carpenters that being observed about age, educational level and working hours and the using of eye protection during work that might be related to ocular trauma. All carpenters completed a comprehensive examination and interview.

RESULTS

The most common age range of ocular trauma was between 26-45 years (56.7%), and all were male. Most of the traumatised carpenters educational level had a higher educational level (50%), and workers that had traumatised works more than 8 hours a day (66.7%). From this study, there was a significant correlation between ocular trauma among the carpenters and age (p = 0.047), and working hours (p = 0.039).

CONCLUSION

No significant correlation between ocular trauma among the carpenters and the using of eye protection during work (p = 0.464), and educational level (0.925) was found. Furthermore to anticipate the high rate of worked-related ocular trauma required labour regulations that cover the age of recruitment workers and working hours a day. Work safety regulation protects the workers from work-related ocular trauma.

Improving household surveys and use of data to address health inequities in three Asian cities: protocol for the Surveys for Urban Equity (SUE) mixed methods and feasibility study

INTRODUCTION

As rapid urbanisation transforms the sociodemographic structures within cities, standard survey methods, which have remained unchanged for many years, under-represent the urban poorest. This leads to an overly positive picture of urban health, distorting appropriate allocation of resources between rural and urban and within urban areas. Here, we present a protocol for our study which (i) tests novel methods to improve representation of urban populations in household surveys and measure mental health and injuries, (ii) explores urban poverty and compares measures of poverty and 'slumness' and (iii) works with city authorities to understand, and potentially improve, utilisation of data on urban health for planning more equitable services.

METHODS AND ANALYSIS

We will conduct household surveys in Kathmandu, Hanoi and Dhaka to test novel methods: (i) gridded population sampling; (ii) enumeration using open-access online maps and (iii) one-stage versus two-stage cluster sampling. We will test reliability of an observational tool to categorise neighbourhoods as slum areas. Within the survey, we will assess the appropriateness of a short set of questions to measure depression and injuries. Questionnaire data will also be used to compare asset-based, consumption-based and income-based measures of poverty. Participatory methods will identify perceptions of wealth in two communities in each city. The analysis will combine quantitative and qualitative findings to recommend appropriate measures of poverty in urban areas. We will conduct qualitative interviews and establish communities of practice with government staff in each city on use of data for planning. Framework approach will be used to analyse qualitative data allowing comparison across city settings.

ETHICS AND DISSEMINATION

Ethical approvals have been granted by ethics committees from the UK, Nepal, Bangladesh and Vietnam. Findings will be disseminated through conference papers, peer-reviewed open access articles and workshops with policy-makers and survey experts in Kathmandu, Hanoi and Dhaka.