Sensitivity and specificity, positive and negative predictive values (PPV, NPV) with 95% CI of HPV self-sampling test, Pap smear, VIA test individually and in combination to detect CIN2+; N=512
| Screening test | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) |
| HPV test | 62.5 (59.5 to 74.3) | 59.3 (54.6 to 63.9) | 18 (13.2 to 23.7) | 91.7 (87.9 to 94.6) |
| Pap smear | 82.8 (71.3 to 91.1) | 82.1 (78.2 to 85.5) | 39.8 (31.5 to 48.7) | 97.1 (94.8 to 98.5) |
| VIA | 48.4 (35.8 to 61.3) | 56.8 (53.3 to 89.8) | 34.4 (24.7 to 45.2) | 92.1 (89.1 to 94.5) |
| HPV+Pap smear | 90.6 (80.7 to 96.5) | 70.6 (65.8 to 75.3) | 20.8 (16.2 to 26.0) | 97.4 (94.5 to 99.0) |
| HPV test+VIA | 65.6 (52.7 to 77.1) | 75.5 (70.7 to 80.2) | 17.4 (12.9 to 22.8) | 91.9 (87.9 to 94.8) |
HPV, human papillomavirus; VIA, visual inspection of the cervix with acetic acid.