Table 1.
Epidemiological characteristics of the study participants
| Variable | No (BC) (%)(n = 120) | No (high-risk group) (%)(n = 120) | P-Value |
|---|---|---|---|
| The median age at sample collection (Range) | 46(25–81) | 37(18–77) | |
| BMI(kg/m2) | 0.095 | ||
| < 25 | 79(65.8) | 93(77.5) | |
| ≥25 | 24(20.0) | 13(10.8) | |
| Unknown | 17(14.2) | 14(11.7) | |
| Age at menarche(in years) | 0.815 | ||
| < 13 | 21(17.5) | 24(20.0) | |
| ≥13 | 76(63.3) | 76(63.3) | |
| Unknown | 23(19.2) | 20(16.7) | |
| Parity | 0.005 | ||
| Nulliparous | 93(77.5) | 80(66.7) | |
| Parous | 7(5.8) | 24(20.0) | |
| Unknown | 20(16.7) | 16(13.3) | |
| Breast-feeding history | 0.094 | ||
| Yes | 65(54.2) | 50(41.7) | |
| No | 18(15.0) | 29(24.2) | |
| Unknown | 37(30.8) | 41(34.2) | |
| Abortion | 0.017 | ||
| Yes | 50(41.7) | 33(27.5) | |
| No | 50(41.7) | 72(60.0) | |
| Unknown | 20(16.6) | 15(12.5) |