title: Correlation Between the Great East Japan Earthquake and Postpartum Depression: A Study in Miyako, Iwate, Japan.
abstract: This study aimed to explore the correlation between the 2011 Great East Japan Earthquake and postpartum depression among perinatal subjects in the Miyako region of Iwate, an area damaged by earthquakes and tsunamis.
  
  
  
  We retrospectively compared the percentages of women with scores ≥9 on the Japanese version of the Edinburgh Postnatal Depression Scale (EPDS) among 3 groups of women who gave birth prior to the disaster (before-disaster group: n=141), within 3 months after the disaster (within-3-months group: n=70), and 4-6 months after the disaster (4-6-months group: n=89) at the Iwate Prefectural Miyako Hospital. The risk factors for EPDS scores ≥9 were estimated with multivariate logistic regression analyses.
  
  
  
  Compared with the before-disaster group, a significantly greater number of women in the within-3-months group had EPDS scores ≥9 at hospital discharge (31.4% versus 9.9%, P<.0001), whereas women in the 4-6-months group did not (10.1% versus 9.9%, P=.96). In both the after-disaster groups, the destruction of their home (adjusted odds ratio [AOR], 3.68; 95% confidence interval [CI], 1.46-9.26) and dissatisfaction with their living conditions (AOR, 3.02; 95% CI, 1.20-7.59) were significantly associated with EPDS scores ≥9.
  
  
  
  An increase in postpartum depression was observed after the Great East Japan Earthquake among perinatal women.
authors.affiliation: 1Department of Obstetrics and Gynecology,Tohoku University Graduate School of Medicine,Miyagi,Japan.
authors.forename: Hidekazu
authors.initials: H
authors.lastname: Nishigori
authors.affiliation: 2Department of Obstetrics and Gynecology,Iwate Prefectural Miyako Hospital,Iwate,Japan.
authors.forename: Michiho
authors.initials: M
authors.lastname: Sasaki
authors.affiliation: 3Tohoku Medical Megabank Organization,Tohoku University,Miyagi,Japan.
authors.forename: Taku
authors.initials: T
authors.lastname: Obara
authors.affiliation: 3Tohoku Medical Megabank Organization,Tohoku University,Miyagi,Japan.
authors.forename: Toshie
authors.initials: T
authors.lastname: Nishigori
authors.affiliation: 3Tohoku Medical Megabank Organization,Tohoku University,Miyagi,Japan.
authors.forename: Mami
authors.initials: M
authors.lastname: Ishikuro
authors.affiliation: 3Tohoku Medical Megabank Organization,Tohoku University,Miyagi,Japan.
authors.forename: Hirohito
authors.initials: H
authors.lastname: Metoki
authors.affiliation: 1Department of Obstetrics and Gynecology,Tohoku University Graduate School of Medicine,Miyagi,Japan.
authors.forename: Junichi
authors.initials: J
authors.lastname: Sugawara
authors.affiliation: 3Tohoku Medical Megabank Organization,Tohoku University,Miyagi,Japan.
authors.forename: Shinichi
authors.initials: S
authors.lastname: Kuriyama
authors.affiliation: 2Department of Obstetrics and Gynecology,Iwate Prefectural Miyako Hospital,Iwate,Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Hosoyachi
authors.affiliation: 1Department of Obstetrics and Gynecology,Tohoku University Graduate School of Medicine,Miyagi,Japan.
authors.forename: Nobuo
authors.initials: N
authors.lastname: Yaegashi
authors.affiliation: 5Kobayshi Clinic of Obstetrics and Gynecology,Iwate,Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Kobayashi
authors.affiliation: 2Department of Obstetrics and Gynecology,Iwate Prefectural Miyako Hospital,Iwate,Japan.
authors.forename: Noboru
authors.initials: N
authors.lastname: Yoshizumi
mesh_terms: D019052:Depression, Postpartum / Q000453:epidemiology / Q000209:etiology*; D055866:Earthquakes; D005260:Female; D006801:Humans; D007564:Japan / Q000453:epidemiology; D011247:Pregnancy; D012189:Retrospective Studies
keywords: medical records; mental disorders; tsunamis