Occupational blood exposure beyond needle stick injuries: hospital-based cross-sectional study among healthcare workers in governmental hospitals of Northern Ethiopia

BACKGROUND: Occupational blood exposure is one of the major public health problems that healthcare workers (HCWs) are encountering. Most previous occupational blood exposure studies are delimited to needle stick injury, which could underestimate the real level of blood exposure. On the other hand, others deal with crude blood and body-fluids exposure, which possibly overestimate the magnitude of blood exposure. Therefore, this study aimed at determining the prevalence of occupational blood exposure and identifying associated factors among HCWs in the Southern Tigrai zone governmental hospitals of Northern Ethiopia considering all the potential means of blood exposure (needle stick injury, sharp medical equipment injury, and blood splash) while excluding blood-free body-fluids. METHODS: A hospital based cross-sectional study design was employed to gather data from randomly selected HCWs in three governmental hospitals from February to March, 2020. A multivariable logistic regression model was used to identify the independent factors associated with the outcome variable. RESULTS: From the total of 318 HCWs, 148 (46.5 %) were exposed to blood at least once in their lifetime. Working for more than 40 h per week (AOR= 9.4; 95 % CI: 7.61, 11.41), lack of adequate personal protective equipment (PPE) (AOR=3.88; 95 % CI: 1.64, 5.42), Hepatitis B virus vaccination (AOR=0.54; 95 % CI: 0.12,0.78), recapping used needle sticks (AOR=3.18; 95 % CI: 1.28, 8.83), and lack of infection prevention and patient safety (IPPS) training (AOR=13.5; 95 % CI: 8.12,19.11) were detected to significantly increase the likelihood of occupational blood exposure. CONCLUSIONS: As nearly half of the HCWs were exposed to blood, reducing work load below 40 h per week by employing additional staff members, supplying adequate PPE, avoiding recapping of used needle sticks, and providing IPPS training for the HCWs should be practiced. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12913-021-07167-9.