Variable | COR (95%CI) | AOR (95%CI) | p-value |
Similar illness in the past 1 year |
|
|
|
Yes | 3.358 (2.291 - 4.988) | 4.205 (2.795 - 6.439) | <0.001* |
No | 1 | 1 |
|
History of abortion/DNC/other invasive procedure |
|
|
|
Yes | 1.655 (1.046 - 2.683) | 1.953 (1.184 - 3.295) | 0.010* |
No | 1 | 1 |
|
Contraception use |
|
|
|
yes | 0.546 (0.332 - 0.897) | 0.531 (0.308 - 0.887) | 0.018* |
no | 1 | 1 |
|
Age at first sexual intercourse |
|
|
|
Not yet | 1 | 1 |
|
Less than 25 years | 2.200 (1.220 - 4.007) | 2.941 (1.552 - 5.661) | <0.001* |
25 - 35 years | 2.883 (1.754 - 4.762) | 3.073 (1.791 - 5.320) | <0.001* |
More than 35 years | 2.880 (1.292 - 6.770) | 2.307 (0.981 - 5.680) | 0.060 |