S1 Annex -

Introduction

Hypertension is a major public health problem that is often unrecognized, and its detection and control should be prioritized. The level of undiagnosed hypertension and its associated factors among long-distance bus drivers in Ethiopia is unknown.

Objective

This study aimed to assess the magnitude of undiagnosed hypertension and its associated factors among long-distance bus drivers in Addis Ababa bus terminals.

Methods

A facility-based cross-sectional study was conducted on 391 long-distance bus drivers from December 15, 2021, to January 15 2022 at five cross-country bus terminals in Addis Ababa. A standardized and structured questionnaire was adapted based on the WHO stepwise approach to a non-communicable disease study and translated into Amharic. Data were coded, cleaned, and entered using Epi-data version 4.6 and exported to SPSS version 26. Logistic regression analysis was performed. Variables with a P-value < 0.25 in the bivariable analysis were selected for multivariable logistic regression analysis. Independent variables with a P-value < 0.05 were considered statistically significant. The magnitude of association between independent and dependent variables was measured by odds ratio with a 95% confidence interval.

Results

In this study, 391 study participants were involved with a response rate of 97.1%. The prevalence of undiagnosed hypertension was 22.5% (CI: 18.7%, 26.6%). Poor level of knowledge (AOR: 2.00, CI: 1.08, 3.70), long duration of driving per day (AOR: 2.50, 95% CI: 1.37–4.56), habit of chewing of chat (AOR: 2.61, 95% CI: 1.44, 4.73), regular alcohol consumption (AOR = 3.46; 95% CI: 1.70, 7.05), overweight (AOR:3.14, 95%CI: 1.54,6.42) obesity (AOR: 3.21, 95% CI 1.35, 7.61) and regular physical exercise (AOR: 0.16, 95% CI: 0.09, 0.29) were statistically significantly associated with undiagnosed hypertension.

Conclusion

This study revealed that the prevalence of undiagnosed hypertension among long-distance bus drivers was 22.5%, which was associated with modifiable behavioral factors, lack of regular physical exercise, lack of adequate awareness and high body mass index.

Recommendation

Stakeholders must implement the necessary preventive measures. These include increasing the level of awareness of hypertension among long-distance drivers and developing prevention of hypertension strategies and policies focusing on lifestyle and behavioral modifications.