Table 2.
Prevalence of HPV infection types, patterns and years by age among 51,556 females in Chengdu, China, 2020–2024.
| HPV infection | Positive cases | % (95% CI) for all samples | ≤20 (n = 310) |
21–30 (n = 16,959) |
31–40 (n = 20,491) |
41–50 (n = 7,680) |
51–60 (n = 4,885) |
≥61 (n = 1,231) |
χ 2 | P |
|---|---|---|---|---|---|---|---|---|---|---|
| Positive cases | 11,360 | 22.03(21.68–22.39) | 153(49.35) | 3,648(21.51) | 4,197(20.48) | 1,544(20.10) | 1,439(29.46) | 379(30.79) | 394.387 | <0.001 |
| Infection pattern | ||||||||||
| Single | 8,687 | 16.85(16.53–17.17) | 84(27.10) | 2,700(15.92) | 3,337(16.29) | 1,256(16.35) | 1,066(21.82) | 244(19.82) | 133.644 | <0.001 |
| Double | 2000 | 3.88(3.71–4.05) | 40(12.90) | 687(4.05) | 696(3.40) | 232(3.02) | 260(5.32) | 85(6.90) | 154.528 | <0.001 |
| Triple | 501 | 0.97(0.89–1.06) | 16(5.16) | 192(1.13) | 134(0.65) | 48(0.63) | 77(1.58) | 34(2.76) | 151.726 | <0.001 |
| ≥Quad | 172 | 0.33(0.28–0.38) | 13(4.19) | 69(0.41) | 30(0.15) | 8(0.10) | 36(0.74) | 16(1.30) | 233.859 | <0.001 |
| Infection types | ||||||||||
| Single HR | 7,014 | 13.60(13.31–13.90) | 52(16.77) | 2,153(12.70) | 2,738(13.36) | 1,019(13.27) | 857(17.54) | 195(15.84) | 86.064 | <0.001 |
| Single LR | 1,673 | 3.25(3.09–3.40) | 32(10.32) | 547(3.23) | 599(2.92) | 237(3.09) | 209(4.28) | 49(3.98) | 75.592 | <0.001 |
| HR + HR | 1,366 | 2.65(2.51–2.79) | 28(9.03) | 491(2.90) | 444(2.17) | 155(2.02) | 184(3.77) | 64(5.20) | 137.965 | <0.001 |
| HR + LR | 1,174 | 2.28(2.15–2.41) | 37(11.94) | 410(2.42) | 375(1.83) | 118(1.54) | 171(3.50) | 63(5.12) | 246.287 | <0.001 |
| LR + LR | 133 | 0.26(0.21–0.30) | 4(1.29) | 47(0.28) | 41(0.20) | 15(0.20) | 18(0.37) | 8(0.65) | 26.589 | <0.001 |
| Years | ||||||||||
| 2020 | 857 | 1.66(1.55–1.77) | 14(4.52) | 278 (1.64) | 332 (1.62) | 130 (1.69) | 83 (1.70) | 20 (1.62) | 23.467 | <0.001 |
| 2021 | 3,487 | 6.76(6.55–6.98) | 49(15.81) | 1,235 (7.28) | 1,292 (6.31) | 447 (5.82) | 370 (7.57) | 94 (7.64) | 860.328 | <0.001 |
| 2022 | 2,933 | 5.69(5.49–5.89) | 34(10.97) | 993 (5.86) | 1,119 (5.46) | 378 (4.92) | 327 (6.69) | 82 (6.66) | 724.729 | <0.001 |
| 2023 | 2,344 | 4.55(4.37–4.73) | 30(9.68) | 675 (3.98) | 821 (4.01) | 372 (4.84) | 343 (7.02) | 103 (8.37) | 230.373 | <0.001 |
| 2024 | 1739 | 3.37(3.22–3.53) | 26(8.39) | 467 (2.75) | 633 (3.09) | 217 (2.83) | 316 (6.47) | 80 (6.50) | 199.668 | <0.001 |