The association between the density of vaccination workers and immunization coverage in Zhejiang province, East China

Figures & data

Table 1. The childhood immunization schedule before 12 months of age in China

	Age
	Birth	1 m	2 m	3 m	4 m	5 m	6 m	7 m	8 m
BCG	Dose1
Hep B	Dose1	Dose2					Dose3
PV			Dose1	Dose2	Dose3
DTP				Dose1	Dose2	Dose3
MCV									Dose1
JEV									Dose1

BCG: Bacille Calmette-Guérin

Hep B: hepatitis B vaccine

PV: polio vaccine

DTP: diphtheria, tetanus, and pertussis combined vaccine

MCV: measles-containing vaccine

JEV: Japanese encephalitis vaccine

Table 2. Description analysis of dependent and independent variables

Variables	Mean (SD)	Range
MCV coverage (%)*	97.06%(4.66%)	88.07%-99.52%
DTP3 coverage (%)*	94.58%(5.53%)	85.42%-99.21%
PV3 coverage (%)*	96.25%(4.81%)	87.92%-99.40%
GDP per person (CNY)	98643.06(14370.52)	63612.16–140181.36
Proportion of migrant children < 7 years (%)	46.26%(16.21%)	25.23%-62.77%
Land area (km^2)	1131.06(1178.75)	67.95–4427.15
The density of total vaccination workers (per 10,000 population)	1.51(1.24)	0.41–4.36
The density of full-time vaccination workers (per 10,000 population)	0.09(0.03)	0.03–1.52
The density of part-time vaccination workers (per 10,000 population)	1.42(1.16)	0.61–3.28

*: percentage of children aged 12–23 months (born from 31 August 2018 to 31 August 2019) registered in ZJIIS. SD: standard deviation.

Table 3. Multivariable analysis on assessing the association between vaccination coverage and human resources of public health

	Regression with the density of total vaccination workers density as an independent variable AOR (95% CI)			Regression with the density of full-time vaccination workers as an independent variable AOR (95% CI)			Regression with the density of part-time vaccination workers as an independent variable AOR (95% CI)
Independent variables	MCV coverage	DTP3 coverage	PV3 coverage	MCV coverage	DTP3 coverage	PV3 coverage	MCV coverage	DTP3 coverage	PV3 coverage
GDP per person	1.25(0.84–1.57)	1.31(0.90–2.01)	1.10(0.86–1.53)	1.08(0.79–1.35)	1.11(0.76–1.40)	1.08(0.82–1.42)	1.17(0.72–1.62)	0.92(0.80–1.22)	1.03(0.88–1.31)
Proportion of migrant children < 7 years	0.82(0.45–0.91)	0.72(0.56–0.88)	0.71(0.52–0.82)	0.74(0.45–0.85)	0.62(0.35–0.82)	0.64(0.48–0.88)	0.88(0.73–1.19)	1.02 (0.86–1.68)	0.92(0.85–1.20)
Land area	1.03(0.85–1.32)	0.98(0.91–1.79)	0.81(0.75–1.58)	0.85(0.59–0.96)	0.86(0.65–0.97)	0.81(0.57–0.90)	1.13(0.85–1.62)	1.08(0.82–1.42)	1.05(0.87–1.65)
The density of total vaccination workers	3.36(1.72–5.37)	2.68(1.56–3.62)	2.37(1.43–4.05)	-	-	-	-	-	-
The density of full-time vaccination workers	-	-	-	5.59(3.47–9.23)	4.13(2.82–8.38)	3.28(1.74–6.85)	-	-	-
The density of part-time vaccination workers	-	-	-	-	-	-	1.57 (0.95–3.08)	1.54(0.81–2.95)	1.32(0.87–2.21)

GDP: Gross Domestic Product

AOR: adjusted odds ratio

CI: confidence interval