Table 1 Characteristics of the patients
Characteristic, n (%) | Normal group (n = 125) | CIN I group (n = 51) | CIN II group (n = 23) | CIN III group (n = 46) | Cervical cancer (n = 20) | P |
|---|---|---|---|---|---|---|
Age (years old), median (IQR) | 38 (30, 47)* | 40 (29.5, 46)* | 34 (29, 40.5)* | 44 (34, 50) | 50 (42.5, 54.5) |  < 0.001 |