Table 1.
Distribution of varicella virus IgG levels in serological survey of Chongqing in 2024
| Subgroups | Number of subjects (n, %) | GMC (95%CI, mIU/mL) | P | Seropositivity(95%CI, %) | P | |
|---|---|---|---|---|---|---|
| Gender | 0.56 | 0.23 | ||||
| Male | 417(43.44) | 328.5(282.9-381.4) | 76.50(72.2-80.32) | |||
| Female | 543(56.56%) | 369.7(329.8-414.4) | 79.74(76.16-82.91) | |||
| Age | Immunization | |||||
| 1–2 years | Unvaccinated | 38(23.75) | 125.1(73.5-212.9) | < 0.01 | 50.0(34.85–65.15) | < 0.01* |
| One dose | 121(75.63) | 251.9(199.2-318.4) | 79.34(71.28–85.60) | |||
| Two doses | 1(0.63) | 331.0 | 100(-) | |||
| 3–5 years | Unvaccinated | 17(7.05) | 340.7(148.1-783.6) | < 0.01 | 58.82(36.01–78.39) | < 0.01 |
| One dose | 118(48.96) | 148.2(113.9-192.8) | 57.63(48.61–66.16) | |||
| Two doses | 106(43.98) | 435.4(312.0-607.7) | 87.74(80.14–92.69) | |||
| 6–18 years | Unvaccinated | 89(38.86) | 372.4(263.2-526.7) | < 0.01 | 66.29(55.98–75.26) | < 0.01 |
| One dose | 41(17.90) | 153.4(82.9-283.8) | 51.22(36.48–65.75) | |||
| Two doses | 99(43.23) | 268.2(206.8-347.8) | 78.79(69.74–85.69) | |||
| 19–49 years | Unvaccinated | 252(100) | 621.6(552.4-699.5) | - | 92.06(88.06–94.80) | - |
| > 50 years | Unvaccinated | 78(100) | 744.7(626.7–885.0) | - | 96.15(89.29–98.68) | - |
| Immunization | < 0.01 | < 0.01 | ||||
| Unvaccinated | 474(49.37) | 511.1(457.4-571.1) | 83.33(79.71–86.42) | |||
| One dose | 280(29.17) | 189.1(159.2-224.7) | 66.07(60.34–71.37) | |||
| Two doses | 206(21.46) | 343.7(277.9-425.1) | 83.50(77.82–87.94) | |||
| Total | 960 | 351.3(320.6-384.9) | 78.33(75.62–80.82) |
Kruskal-Wallis (KW) test was used for comparing differences among multiple groups. Wilcoxon rank sum test was conducted for comparing differences between two groups
* The only one child with two doses was combined with one dose to conduct Wilcoxon rank sum test