Table 1.

Background characteristics of the study population and survey question frequency data (N = 674)

Age at time of tsunami, years (mean, range)	43.0, 18-81
	n	%
Gender
Male	315	46.7
Female	359	53.3
Married or cohabiting prior to the tsunami
Yes	477	71.8
No	187	28.2
Married or cohabiting at T1
Yes	452	70.3
No	191	27.7
Education
< 13 years	276	41.1
≥ 13 years	396	58.9
Employed prior to the tsunami
Yes	495	73.4
No	179	26.6
Employed at T1
Yes	467	69.3
No	207	30.7
Pre-tsunami mental health problems
No	505	75.7
Yes	162	24.7
Chased or caught by the waves
No	424	64.3
Yes	235	35.7
Witnessed abandoned children, death or suffering of others
No	249	37.9
Yes	408	62.1
Loss of family members or close friends
No	622	92.7
Yes	49	7.3
Experienced intense fear, helplessness, or horror
No	191	30.7
Yes	431	69.3
Referred to a mental health specialist
No	611	90.7
Yes	63	9.3
Experienced ≥2 adverse life events last 12 months at T2
No	438	65.6
Yes	230	43.4