Table 3. Logistic regression analysis on the effect of predominant enterovirus serotypes in severe HFMD.

Variable	Unadjusted			Adjusted
	OR	95%CI	P	OR	95%CI	P
Age, months
≤12	4.26	2.77–6.54	<0.001	4.25	2.72–6.64	<0.001
12∼24	2.05	1.41–2.99	<0.001	2.08	1.41–3.07	<0.001
24∼36	1.78	1.20–2.65	0.004	1.85	1.22–2.79	0.004
36∼48	2.22	1.45–3.39	<0.001	2.16	1.39–3.36	<0.001
>48	1.0			1.0
Sex, male/female	0.87	0.71–1.06	0.168	0.94	0.75–1.17	0.556
Enterovirus
EV-71	4.58	2.97–7.07	<0.001	4.81	3.07–7.53	<0.001
CV-A16	1.37	0.86–2.19	0.182	1.51	0.94–2.45	0.092
CV-A10	2.29	1.24–4.22	0.008	2.66	1.40–5.06	0.003
CV-A6	0.88	0.37–2.11	0.776	1.20	0.48–3.02	0.700