Aim A depressive state is a key risk factor for medical errors made by emergency life‐saving technicians ( ELST s). However, no study has examined the occurrence of near‐misses in ELST s. We investigated the association between a depressive state and near‐misses among ELST s. Methods A cross‐sectional study was undertaken in 345 ELST s using an anonymous self‐administered questionnaire. The main exposure was a depressive state that was measured using the Quick Inventory of Depressive Symptomatology. For the main outcome, near‐miss events, we calculated odds ratios ( OR ) of depressive states, adjusted for age and work‐related factors by multivariable logistic regression. For exploratory purposes, we also undertook secondary analyses to determine whether work‐related factors were associated with a depressive state. Results We obtained 254 responses. Compared to ELST s without a depressive state, the adjusted OR for near‐misses among ELST s with a mild depressive state was 3.14 (95% confidence interval [ CI ], 1.37–7.16;P ?=?0.007), and that among ELST s with a moderate or greater depressive state was 5.29 (95% CI , 1.46–19.09;P ?=?0.011). For a depressive state, in the exploratory analyses, the OR of nap duration while on duty for less than 2?h was 3.34 (95% CI , 1.15–9.67;P ?=?0.027), that for irregular mealtime while on duty was 3.71 (95% CI , 2.00–6.86;P ?
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