Table 4.
Characteristics of hrHPV co-infection
| Single strain | Two strains | Three or more strains | P for trend | |
|---|---|---|---|---|
| N = 1144 | N = 278 | N = 60 | ||
| SIL grouping | ||||
| Cervicitis/NILM | 974 (85.1) | 219 (78.8) | 41 (68.3) | 0.0003 |
| ASC-US | 42 (3.7) | 14 (5.0) | 3 (5.0) | 0.5326 |
| LSIL | 74 (6.5) | 28 (10.1) | 5 (8.3) | 0.1081 |
| HSIL | 54 (4.7) | 17 (6.1) | 11 (18.3) | <0.0001 |
| Genotype grouping | ||||
| 16 | 190 (16.6) | 81 (29.1) | 30 (50.0) | <0.0001 |
| 18 | 118 (10.3) | 47 (16.9) | 16 (26.7) | <0.0001 |
| 33 | 58 (5.1) | 38 (13.7) | 9 (15.0) | <0.0001 |
| 52 | 225 (19.7) | 99 (35.6) | 31 (51.7) | <0.0001 |
| 58 | 165 (14.4) | 57 (20.5) | 26 (43.3) | <0.0001 |
NILM, negative for intraepithelial lesion or malignancy; ASC-US, atypical squamous cells of undetermined significance; LSIL, low-grade squamous intraepithelial lesion; HSIL, high-grade squamous intraepithelial lesion.