Table 1. Demographic characteristics of the study sample.

Characteristics	N	%
Note. N = 54,256. aOnly for the child abuse data (n = 12,049).
Groups
Influenza	42,207	77.8
Child abuse	12,049	22.2
Gender
Male	28,980	53.4
Female	25,276	46.6
Race
Chinese	48,525	89.4
Non-Chinese	5,731	10.6
Suicide attempts
No	53,595	98.8
Yes	661	1.2
Suicide attempts age (years)
0–10	123	18.6
11–15	202	30.6
16–20	247	37.4
> 20	89	13.5
Abuse typea
Unknown	6,826	57.0
Physical	3,888	32.3
Sexual	1270	10.5
Physical and sexual	65	0.5
Age group (year)a
0 – 5	3348	27.8
6 – 10	4541	37.7
11 – 15	3642	30.2
16 – 18	518	4.3
Perpetratora
Other relatives/other person	8,526	70.8
Father	2,018	15.7
Mother	1,403	11.6
Father and mother	102	0.9