Table 3 Poisson regression model of major risk factors for drowning death in children aged 1–14 in Xiamen, People's Republic of China, 2001–5.

Factor	Regression parameter estimate	SE	p value	RR (95% CI)
Year
2001*	–	–	–	1.000
2002	−0.141	0.374	0.707	0.869 (0.418 to 1.807)
2003	−0.020	0.360	0.956	0.980 (0.484 to 1.986)
2004	−0.306	0.385	0.428	0.737 (0.346 to 1.567)
2005	−1.365	0.526	0.010	0.255 (0.091 to 0.716)
Residence
Urban*	–	–	–	1.000
Rural	2.060	0.428	<0.0001	7.845 (3.389 to 18.060)
Gender
Male	0.049	0.633	0.938	1.050 (0.304 to 3.627)
Female*	–	–	–	1.000
Age
1–4*	–	–	–	1.000
5–9	0.034	0.606	0.956	1.034 (0.316 to 3.389)
10–14	−0.203	0.671	0.762	0.816 (0.219 to 3.039)
Gender and age
Male 5–9	1.312	0.779	0.092	3.714 (0.807 to 17.092)
Male 10–14	1.686	0.834	0.043	5.398 (1.053 to 27.677)

*Reference group.