Hospital case volume and maternal adverse events following abnormal deliveries: Analysis using a Japanese national in-patient database.

Objective: To clarify the relationship between the number of deliveries and maternal outcomes in Japan, considering the declining birth rate and the evidence that hospitals with few deliveries have medical safety issues.

Methods: Hospitalizations for deliveries were analyzed using the Diagnosis Procedure Combination database from April 2014 to March 2019, after which maternal comorbidities, maternal end-organ injury, medical treatment during hospitalization, and hemorrhage volume during delivery were compared. Hospitals were divided into four groups based on the number of deliveries per month.

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.

Relationship between the depressive state of emergency life-saving technicians and near-misses.

Aim: A depressive state is a key risk factor for medical errors made by emergency life-saving technicians (ELSTs). However, no study has examined the occurrence of near-misses in ELSTs. We investigated the association between a depressive state and near-misses among ELSTs.