Road traffic crashes are one of the most important causes for physical and psychosocial disease burden and early death worldwide. The United Nations (UN) declared the Decade of Action for Road Safety during the period 2011-2020, with the objective to halve the number of road traffic deaths by 2020. While the number of fatal road traffic crashes has decreased since then in high-income countries (HIC), it has increased in low- and middle-income countries (LMIC). Worldwide, about 90% of the crashes are recorded in LMIC (2016), while these countries had only about 60% of the motor vehicles.

Driving under the influence of alcohol is one of the principal reasons for road traffic crashes. The use of alcohol is also a risk factor for other road users, such as pedestrians and bicyclists. The involvement of alcohol in injurious and fatal road traffic crashes has been well documented in most HICs, but data for LMICs is scarce, particularly for African countries.

The study is a collaborative effort among the Kamuzu Central Hospital (KCH), the Norwegian Institute of Public Health (NIPH) and the Oslo University Hospital (OUH), with the financial support of UK Aid through the Global Road Safety Facility (GRSF), the International Council on Alcohol Drugs and Traffic Safety (ICADTS) and the Norwegian Council for Road Safety (Trygg Trafikk).

The objective of the study was to generate new knowledge about road traffic injuries in Malawi and the extent of traffic accidents related to alcohol use, to increase capacity to conduct alcohol-testing, and develop a database for the findings, which in turn will form the basis for future policymaking to reduce traffic accidents.

The objectives were achieved through collecting data on patients who sought treatment after road traffic crashes and admitted to the Emergency Department at Kamuzu Central Hospital in Lilongwe, Malawi. The data included basic information about the patients, alcohol use before the injury, and information about accident circumstances, including types of road users and vehicles involved. Knowledge and training of local KCH employees to perform alcohol testing and record data were an important aspect of this study.

RESULTS  ⌵︎

• Of 1347 eligible patients who were asked to participate during a period of about three months, 1259 (93.5 percent) gave informed consent, eight patients were not tested for alcohol and thus excluded, resulting in 1251 patients in the study.

• The prevalence of alcohol was 30.7 percent among males and only 2.5 percent among females, who represented 19.2% of the total cases. There were minor differences across different age groups, with the highest prevalence of alcohol use among those between 25 and 44 years of age (26-27 percent) and lowest among those 45 years of age and older (19.7 percent).

• The highest prevalence of alcohol was found among patients with no formal education (33.3 percent) compared to patients with college or university education (22.1 percent) with the lowest prevalence.

• When comparing the different road users, the highest prevalence of alcohol was found among pedestrians (41.8 percent) while the prevalence among the other road users varied from 19.1 percent (bicycle riders) to 24 percent (motorcycle riders).

• Patients injured during weekend night crashes, showed the highest prevalence of alcohol (59.6 percent), followed by those injured during weekend evenings (36.8 percent) and weekday nights (35.3 percent).

• Regarding drinking habits, measured by the AUDIT-C questionnaire, hazardous drinking was more common among males (26 percent) than among females (4.2 percent). Age group 25-34 years had the highest prevalence of positive AUDIT-C test (26 percent).

• The blood alcohol concentrations (BACs) at the time of injury were estimated by back-calculation for road users who were tested for alcohol within five hours after injury in accordance with forensic medicine practices. An estimated proportion of 15.2% of the injured motor vehicle drivers had BAC at or above 0.08g/dl when the crash occurred.

Acknowledgments ⌵︎

This research project was made possible with the financial support of UK Aid through the Global Road Safety Facility, the International Council on Alcohol Drugs and Traffic Safety and the Norwegian Council for Road Safety.