Table 3.

Determinants associated with full SIV vaccination by Mar 31 and interval between two doses in the 2014–15 influenza season, Zhejiang province.

	Full SIV vaccination			Proportion of fully vaccinated children with an interval of 28 days
Variables	n(N = 1837555)	%	AOR(95%CI)	n(N = 53611)	%	AOR(95%CI)
Gender
Male	929619	2.92	1.00	27108	13.00	1.00
Female	907936	2.92	1.03(0.93–1.21)	26503	12.98	1.05(0.97–1.19)
Age
6–12 months	365122	10.02	1.00	36585	15.26	1.00
13–24 months	737227	2.16	0.57(0.32–0.66)*	15924	8.07	0.77(0.54–0.92)*
25–36 months	735206	0.15	0.20(0.18–0.61)*	1102	8.71	0.70(0.47–0.85)*
Children's immigration status
Migrant	572766	1.86	1.00	10653	9.05	1.00
Resident	1264789	3.40	1.87(1.25–2.72)*	42958	13.96	1.31(1.16–2.07)*
Socioeconomic development level of resident areas#
Low	534177	1.80	1.00	9615	12.90	1.00
Middle	579197	2.40	1.09(0.90–1.33)*	13901	13.43	1.07(0.88–1.20)
High	724180	4.16	1.35(1.16–2.04)*	30095	12.81	1.11(0.91–1.83)
Frequency of vaccination service
≤ 3 times per month	703600	2.92	1.00	19771	8.73	1.00
1–4 times per week	776734	2.91	0.92(0.83–1.12)	22525	13.27	1.38(1.13–1.92)*
≥5 times per week	357221	2.94	1.02(0.94–1.15)	11315	19.86	1.60(1.29–2.17)*
Vaccination service time
Morning session	961409	2.90	1.00	23698	9.53	1.00
Morning & afternoon sessions	876146	2.93	1.08(0.96–1.15)	29913	15.73	2.05(1.65–2.97)*

^#HZ, NB, ZS were classified as high socioeconomic development areas; SX, JX, JH were classified as middle socioeconomic development areas; TZ, QZ, LS, WZ were classified as low socioeconomic development areas.

^*Significantly lower or higher coverage than the comparing group in the logistic regression models (p< 0.05).

CI: confidence interval; AOR: adjusted odds ratio.