Variables | PMS | Crude OR (95% CI) | AOR (95% CI) | |
---|---|---|---|---|
No | Yes | |||
Age (years) | 90 | 402 | 1.27 (1.09, 1.48) | 1.20 (1.01, 1.44)* |
Nonacademic duty | ||||
Not at all | 26 | 61 | 1.00 | 1.00 |
Simple | 7 | 57 | 3.47 (1.40, 8.62) | 2.46 (0.92, 6.60) |
Heavy | 57 | 283 | 2.12 (1.23, 3.63) | 2.13 (1.17, 3.89)* |
Physical activity | ||||
Not at all | 39 | 224 | 2.73 (1.43, 5.19) | 1.01 (0.57, 1.77) |
Irregularly | 32 | 138 | 2.05 (1.05, 3.40) | 0.49 (0.25, 1.02) |
Regularly | 19 | 40 | 1.00 | 1.00 |
Coffee intake in cups | ||||
0 | 59 | 180 | 1.00 | 1.00 |
1–4 | 29 | 156 | 1.76 (1.08, 2.89) | 1.93 (1.12, 3.31)* |
≥ 5 | 2 | 66 | 10.8 (2.57, 45.5) | 6.79 (1.50, 30.77)* |
Age at menarche (years) | ||||
9–12 | 16 | 155 | 3.14 (1.69, 5.79) | 2.68 (1.32, 5.47)** |
13–14 | 45 | 139 | 1.00 | 1.00 |
15–17 | 28 | 107 | 1.24 (0.73, 2.11) | 1.09 (0.60, 1.99) |
Menstrual pattern | ||||
Regular | 72 | 299 | 1.00 | 1.00 |
Irregular | 18 | 103 | 1.38 (0.79, 2.42) | 0.49 (0.07, 3.29) |
Menstrual cycle length | ||||
< 21 | 19 | 112 | 1.38 (0.79, 2.40) | 2.26 (0.35, 14.57) |
21–35 | 67 | 286 | 1.00 | 1.00 |
> 35 | 4 | 4 | 0.23 (0.06, 0.96) | 0.13 (0.02, 0.75)* |
History of intercourse | ||||
Yes | 14 | 24 | 1.00 | 1.00 |
No | 76 | 378 | 2.90 (1.44, 5.86) | 5.03 (2.20, 11.51)** |