Near-miss incidents owing to fatigue and irregular lifestyles in ambulance personnel.

We aimed to investigate the association between fatigue and near-miss incidents and between irregular lifestyles and fatigue in ambulance personnel. In this cross-sectional study, we used a self-administered questionnaire and ambulance dispatch records during November 2017. We performed multiple logistic regression; in total, 254 ambulance staff were eligible for inclusion in the analysis. The adjusted odds of near-miss incidents were 3.19 times higher for participants with higher fatigue than for those with normal fatigue, with statistical significance. Fatigue was significantly associated with the monthly number of ambulance dispatches, office working hours, mealtimes, daytime napping hours, and napping hours during a night shift. In this study, we demonstrated a positive association between fatigue and near-miss incidents among ambulance personnel. Additionally, our results suggest that irregular lifestyles are a root cause of fatigue in ambulance personnel.