Table 2. Characteristics of children affected by the 2011 Japan earthquake and tsunami.

Items		After 8 months		After 20 months		After 30 months
		N = 11,639		N = 10,597		N = 10,812
Gender	Boys	5939	(51.0%)	5302	(50.0%)	5434	(50.3%)
	Girls	5700	(49.0%)	5295	(50.0%)	5378	(49.7%)
Age at the time of the disaster (y) (Mean)		10.9	(SD = 2.7)	10.9	(SD = 2.7)	10.9	(SD = 2.7)
PTSSC-15 Total score (Mean)		20.5	(SD = 14.5)	18.8	(SD = 14.0)	19.7	(SD = 14.2)
PTSSC-15 Depression score (Mean)		5.4	(SD = 4.6)	5.0	(SD = 4.4)	4.1	(SD = 3.6)
PTSD score (Mean)		12.6	(SD = 9.1)	11.7	(SD = 8.7)	11.7	(SD = 8.8)