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Table 3 Subgroup analysis of anti-VZV IgG antibody among vaccinated and unvaccinated children aged 4 to 6 years

From: Seroprevalence and molecular characteristics of varicella-zoster virus infection in Chinese children

  Vaccinated χ2 P Unvaccinated χ2 P
IgG
Positive (%)
IgG
Negative (%)
IgG
Positive (%)
IgG
Negative (%)
Total
 Boys 387 (55.3) 313 (44.7) 3.410 0.182 450 (50.4) 442 (49.6) 1.303 0.257
 Girls 348 (53.5) 303 (46.5) 362 (47.6) 398 (52.4)
4 years
 Boys 78 (48.1) 84 (51.9%) 1.159 0.560 166 (48.5) 176 (51.5) 1.137 0.289
 Girls 75 (51.0) 72 (49.0) 118 (44.2) 149 (55.8)
5 years
 Boys 116 (55.0) 95 (45.0) 6.823 0.033 133 (48.9) 139 (51.1) 0.825 0.662
 Girls 104 (48.1) 112 (51.9) 120 (50.0) 120 (50.0)
6 years
 Boys 193 (59.0) 134 (41.0) 0.007 0.935 151 (54.1) 128 (45.9) 1.387 0.259
 Girls 169 (58.7) 119 (41.3) 124 (49.0) 129 (51.0)