Notes. Suicide rates (per 100,000 people) in evacuation
areas and non-evacuation areas are shown by postdisaster period. The
bold line and dotted line show the transition of suicide rates in
evacuation areas and non-evacuation areas, respectively. The arrows
indicate the occurrence of the nuclear disaster following the Great East
Japan Earthquake. Postdisaster suicide rates were compared with the
national average using Poisson distribution. * p
< .05, ** p < .01, Poisson distribution
test
Annualized suicide rate: Monthly suicide
number/population × 100,000 × 12
Evacuation areas: Tamura, Minami-Soma, Kawamata, Hirono,
Naraha, Tomioka, Kawauchi, Okuma, Futaba, Namie, Katsurao, and
Iitate
Non-evacuation areas: Other municipalities in Fukushima
Prefecture