Study participants
mental illness, illness
The intervention and control groups had approximately the same number of clusters and schoolteachers, with no significant baseline differences. The mean age of the study participants was 43.6 years (intervention group) and 41.1 years (control group), similar to the mean age of public elementary schoolteachers in Japan, 42.6 years [Additionally, 55.2% (intervention group) and 58.3% (control group) of the study participants were female, slightly less than the 62.4% of all public schoolteachers [The experience of working with parents with mental illness was common to more than half of the participants, but only about 30% had learned about mental illness. Among elementary schoolteachers who resigned because of illness, 69.1% resigned because of mental illness [