Introduction of Two-Dose Mumps-Containing Vaccine into Routine Immunization Schedule in Quzhou, China, Using Cox-Proportional Hazard Model

Table 3

Results from Cox-proportional hazard regression model depicting the risk of mumps.

Characteristics			Hazard ratio (HR)	95% CI for HR		value
				Lower	Upper
Gender	Male
	Female	0.093	1.097	0.956	1.259	0.185
SIA	After SIA
	Pre-SIA	2.781	16.130	12.078	21.567	<0.001
Year of birth	2006
	2007	0.784	2.190	1.786	2.684	﹤0.001
	2008	0.929	2.531	2.016	3.178	<0.001
	2009	1.386	4.001	3.133	5.109	<0.001
	2010	1.091	2.978	2.250	3.941	<0.001
Doses of MuCV	Two doses
	Without	1.010	2.744	2.094	3.597	<0.001
	One dose	0.795	2.214	1.812	2.705	<0.001