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Table 1 Prevalence of HPV infection in different age groups

From: Prevalence and genotype distribution of HPV and cervical pathological results in Sichuan Province, China: a three years surveys prior to mass HPV vaccination

Age Group (Year) Total case HPV positive cases
HEC OGOC Total HEC OGOC Total
n %a n %a n %a n %b n %b n %b
≤20 2 0.02 149 2.74 151 1.06 1 0.01 86 1.58 87 0.61
21–30 902 10.31 2111 38.85 3013 21.24 149 1.70 801 14.74 950 6.70
31–40 2722 31.11 1368 25.17 4090 28.83 404 4.62 462 8.50 866 6.11
41–50 3552 40.59 1201 22.10 4753 33.51 513 5.86 397 7.31 910 6.42
51–60 1262 14.42 457 8.41 1719 12.12 220 2.51 215 3.96 435 3.07
61–70 274 3.13 129 2.37 403 2.84 47 0.54 75 1.38 122 0.86
≥71 37 0.42 19 0.35 56 0.39 4 0.05 8 0.15 12 0.08
Total 8751 100.00 5434 100.00 14,185 100.00 1338 15.29 2044 37.62 3382 23.84
  1. a: Percentage of each age group in HEC/OGOC /Total group
  2. b: Percentage of HPV positive cases in each age group in HEC/OGOC /Total group