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Table 2 Analysis of IgG antibody levels of varicella in children aged 1–9 years in Jiangsu Province in 2016

From: Analysis of sero-epidemiological characteristics of varicella in healthy children in Jiangsu Province, China

Characteristics Sample size N Seroprevalence(%, 95 CI) GMC(mU/ml, 95% CI)
Age(year) 1–4 1543 807 52.3(49.7–54.8) 275.2(235.4–297.6)
5–9 2088 773 37.0(34.9–39.1) 183.7(153.2–207.9)
χ2/t value   84.31 3.65  
P value   < 0.001 < 0.001  
Gender Boy 1898 761 40.1(37.9–42.3) 212.6(175.2–236.5)
Girl 1733 819 47.3(44.9–49.6) 260.4(240.3–295.2)
χ2/t value   18.92 2.52  
P value   < 0.001 < 0.001  
Area South 1249 438 35.1(32.4–37.8) 216.2(198.7–232.4)
North 1204 646 53.7(50.8–56.5) 191.8(178.5–221.2)
central 1178 496 42.1(39.3–44.9) 298.1(273.1–321.6)
χ2/F value   35.64 24.21  
P value   < 0.001 < 0.001  
Immune history 1 dose 1563 892 57.1(54.6–59.5) 294.9(265.2–330.4)
0 dose 2068 688 33.3(30.9–35.1) 120.2(97.5–153.6)
χ2/t value   205.16 5.36  
P value   < 0.001 < 0.001  
Total 3631 1580 43.5(41.9–45.1) 225.4(185.4–247.6)