Table 1 Sociodemographic characteristics of the study groups participants
From: High frequency of HPV genotypes 59, 66, 52, 51, 39 and 56 in women from Western Mexico
|  | Open-population (N = 300) % (N) | CIN 1 (N = 71) % (N) | CC (N = 96) % (N) | p-value |
|---|---|---|---|---|
Age (years) | ||||
 16–25 | 3.3 (10) | 11.3 (8) | 2.1 (2) | < 0.001 |
 26–35 | 26.3 (79) | 46.5 (33) | 13.5 (13) | |
 36–45 | 28.3 (85) | 21.1 (15) | 31.3 (30) | |
 46–55 | 28.3 (85) | 14.1 (10) | 20.8 (20) | |
 56–65 | 10.7 (32) | 7.0 (5) | 17.7 (17) | |
 66–75 | 2.7 (8) | 0 (0) | 10.4 (10) | |
 76–85 | 0.3 (1) | 0 (0) | 4.2 (4) | |
 Median | 43.0 | 33.0 | 47.0 | |
Age at menarche | 12.7 ± 1.6 | 12.4 ± 1.8 | 12.7 ± 1.8 | 0.263 |
Age at 1st intercourse | 20.4 ± 4.0 | 19.8 ± 4.9 | 18.6 ± 3.5 | 0.069 |
Pregnancies | 2.5 ± 1.9 | 2.1 ± 2.0 | 4.4 ± 3.3 | < 0.001 |
Hormonal contraceptives | ||||
 Yes | 13.7 (41) | 14.1 (10) | 28.1 (27) | 0.038 |
 No | 86.3 (259) | 85.9 (61) | 71.9 (69) | |
Smoker | ||||
 Yes | 12.3 (37) | 8.5 (6) | 34.4 (33) | < 0.001 |
 No | 87.7 (263) | 91.5 (65) | 65.6 (63) | |