From: Perspectives acquired through long-term epidemiological studies on the Great East Japan Earthquake
Health and Life Revival Council in Ishinomaki District (RCI) [13,17,, 14, 16–18] | Tohoku Study of Child Development (TSCD) [2,20,21,22,, 19–23] | ||
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Place of municipality | Iwanuma | Ishinomaki | Sendai and the Sanriku coastal areas of Miyagi Prefecture |
Population of the municipality in Sep 2015 | 44,149 | 148,968 | >1 million |
Damage from GEJE and subsequent tsunamis on Mar 2011 | 187 died, 48% of the land was inundated. | 3,055 died, 420 missing, 270 certified as disaster-related death. | On TSCD, 2 mothers and 3 children died, 10 families missing, the investigation was suspended for 5 months. |
Sampling frame | 8,576 residents ≥65 years | ≈8,700 survivor families living only on the 2nd floor of their damaged houses | Neonates born at 36–42 weeks of gestation with a birth weight of ≥2400 g. |
Recruitment period | Aug 2010 | Oct 2011 to Mar 2012 as 1st-term survey | Jan 2001 to Sep 2005 |
Latest follow-up period | Oct 2013 to Jan 2014 | Apr 2013 to Jan 2014 as 2nd-term survey | Mar 2013 as the 7-year-old survey |
Number in each cohort database | 4,380 survivors | 4,176 households (1st-term); 4,023 (2nd-term) | 1,348 mother-offspring pairs from 3 maternity hospitals |
Follow-up rate | 82.1% | n/a (2 surveys not yet fully linked) | 70.7% |
Outcome reported | PTSD symptomatology, mental health, physical function, social activies | Sleep problems, psychological distress, symptoms, access to health services | Home and conventional blood pressure, verbal, performance, and full-scale IQ, autonomic nervous indicators |