Table 5 Simultaneous administration of EV71 vaccine among children born during 2012–2018 in Ningbo, China
Characteristics | Total, N | EV71 vaccination alone, N(%) | Simultaneous administration of EV71 vaccine, N(%) | χ2b | Pb | |
|---|---|---|---|---|---|---|
with another vaccine | with two or more vaccines | |||||
Total | 329,569 | 323,716(98.22) | 5712(1.73) | 141(0.04) | ||
Dose of EV71 | ||||||
1st dose | 172,236 | 168,283(97.70) | 3850(2.24) | 103(0.06) | 559.19 | < 0.001 |
2nd dose | 157,333 | 155,433(98.79) | 1862(1.18) | 38(0.02) | ||
Sex | ||||||
Male | 172,370 | 169,290(98.21) | 3006(1.74) | 74(0.04) | 0.25 | 0.884 |
Female | 157,199 | 154,426(98.24) | 2706(1.72) | 67(0.04) | ||
Immigration status | ||||||
Resident children | 170,670 | 169,283(99.19) | 1368(0.80) | 19(0.01) | 1795.43 | < 0.001 |
Migrant childrena | 158,899 | 154,433(97.19) | 4344(2.73) | 122(0.08) | ||
Urbanicity | ||||||
Inner | 213,613 | 209,686(98.16) | 3840(1.80) | 87(0.04) | 15.40 | < 0.001 |
Outer | 115,956 | 114,030(98.34) | 1872(1.61) | 54(0.05) | ||
Age of vaccination | ||||||
6–12 months | 119,754 | 116,886(97.61) | 2804(2.34) | 64(0.05) | 444.21 | < 0.001 |
13–24 months | 121,004 | 119,158(98.47) | 1806(1.49) | 40(0.03) | ||
25–36 months | 49,547 | 48,872(98.64) | 661(1.33) | 14(0.03) | ||
37–59 months | 39,261 | 38,797(98.82) | 441(1.12) | 23(0.06) | ||
Socioeconomic level of resident areas | ||||||
High | 147,699 | 144,676(97.95) | 2964(2.01) | 59(0.04) | 118.11 | < 0.001 |
Low | 181,870 | 179,040(98.44) | 2748(1.51) | 82(0.05) | ||
Scale of immunization clinics | ||||||
Large-scaled | 147,026 | 144,105(98.01) | 2868(1.95) | 53(0.04) | 178.75 | < 0.001 |
Midsized | 82,421 | 80,820(98.06) | 1545(1.87) | 56(0.07) | ||
Small-sized | 100,122 | 98,791(98.67) | 1299(1.30) | 32(0.03) | ||