Table 3 Univariate analysis for intensity of dysmenorrhic pain
Variables | Total (%) | Mild (%) | Moderate/severe (%) | P value | OR 95%(CI) |
|---|---|---|---|---|---|
College | |||||
 E | 182 (22.4) | 36 (19.8) | 146 (80.2) | 0.03 | 1.12 (0.74–1.73) |
 H | 507 (62.3) | 110 (21.2) | 397 (78.3) | Reference | |
 M | 125 (15.4) | 14 (11.2) | 111 (88.8) | 2.2 (1.21–3.98) | |
Age(years) | |||||
  < 20 | 600 (73.7) | 115 (19.2) | 485 (80.8) | 0.556 | – |
  ≥ 20 | 214 (26.3) | 45 (21) | 169 (79) |  | |
Age at menarche (years) | |||||
  ≤ 14 | 569 (69.9) | 103 (18.1) | 466 (81.9) | 0.089 | – |
  > 14 | 245 (30.1) | 57 (23.3) | 188 (76.7) |  | |
Regular | |||||
 Always | 213 (26.2) | 54 (25.4) | 159 (94.6) | 0.015 | Reference |
 Not always | 601 (73.8) | 106 (17.6) | 495 (82.4) | 1.57 (1.09–2.30) | |
Duration of menses (days) | |||||
  ≤ 5 | 429 (52.7) | 94 (21.9) | 335 (78.1) | 0.087 | – |
  > 5 | 385 (47.3) | 66 (17.1) | 319 (82.9) |  | |
Education of the mother | |||||
  ≤ High school | 536 (65.8) | 115 (21.8) | 421 (78.5) | 0.073 | – |
  ≥ College | 278 (34.2) | 45 (16.2) | 233 (83.8) |  | |
Education of the father | |||||
  ≤ High school | 424 (52.1) | 87 (20.5) | 337 (79.5) | 0.518 | – |
  ≥ College | 390 (47.9) | 73 (18.7) | 317 (81.3) |  | |
Socioeconomic level | |||||
  ≤ Average | 580 (71.3) | 113 (19.5) | 467 (80.5) | 0.845 | – |
  > Average | 234 (28.7) | 47 (20.1%) | 187 (79.7) |  | |
Smoking | |||||
 Yes | 139 (17.1) | 23 (16.5) | 116 (83.5) | 0.311 | – |
 No | 675 (82.9) | 137 (20.3) | 538 (79.7) |  | |
Regular exercise | |||||
 Yes | 282 (34.6) | 61 (21.6) | 221 (87.4) | 0.302 | – |
 No | 532 (65.4) | 99 (18.6) | 433 (81.4) |  | |
Stress | |||||
 Yes | 249 (30.6) | 38 (15.3) | 211 (84.7) | 0.036 | 1.53 (1.03–2.28) |
 No | 565 (69.4) | 122 (21.6) | 443 (78.4) | Reference | |
Living | |||||
 With family | 664 (81.7) | 140 (21.1) | 524 (78.9) | 0.034 | Reference |
 In dormitory | 149 (18.3) | 20 (13.4) | 129 (80.6) | 1.72 (1.04–2.86) | |
BMI | |||||
  < 18.5 | 79 (10.1) | 12 (15.2) | 67 (84.8) | 0.363 |  |
 18.5–24.9 | 599 (76.9) | 119 (19.9) | 480 (80.1) | – | |
 25–29.9 | 84 (10.8) | 18 (21.4) | 66 (78.6) |  | |
  > 30 | 17 (2.2) | 1 (5.9) | 629 (80.7) |  | |
Breakfast | |||||
 Every day | 207 (25.4) | 58 (28) | 149 (72) | 0.001 | Reference |
 Sometimes/never | 607 (74.6) | 102 (16.8) | 505 (83.2) | 1.93 (1.33–2.79) | |
Vegetables and fruits | |||||
 Never or low | 172 (21.2) | 26 (15.1) | 146 (84.9) | 0.069 |  |
 Moderate | 506 (62.3) | 98 (19.4) | 408 (80.6) | – | |
 High | 104 (12.8) | 25 (24) | 79 (76) |  | |
 Very high | 30 (3.7) | 10 (33.3) | 20 (66.7) |  | |
Meat and protein rich diet | |||||
 Never or low | 190 (23.4) | 27 (14.2) | 163 (85.8) | 0.086 |  |
 Moderate | 517 (63.6) | 113 (21.9) | 404 (78.1) | – | |
 High | 80 (9.8) | 13 (16.3) | 67 (83.8) |  | |
 Very high | 26 (3.2) | 7 (26.9) | 19 (73.1) |  | |
Sweets and sugary beverages | |||||
 Never or low | 63 (7.7) | 16 (25.4) | 47 (74.6) | 0.352 |  |
 Moderate | 452 (55.6) | 87 (19.2) | 365 (80.8) | – | |
 High | 248 (30.5) | 50 (20.2) | 198 (79.8) |  | |
 Very high | 50 (6.2) | 6 (12) | 44 (88) |  | |
Salty foods | |||||
 Never or low | 77 (9.5) | 12 (15.6) | 65 (84.4) | 0.735 |  |
 Moderate | 387 (47.7) | 80 (20.7) | 307 (79.3) | – | |
 High | 269 (33.1) | 54 (20.1) | 215 (79.9) |  | |
 Very high | 79 (9.7) | 14 (17.7) | 65 (82.3) |  | |
Tea/coffee/Nescafe | |||||
  ≤ 1 cup | 264 (32.4) | 49 (18.6) | 215 (81.4) | 0.589 |  |
  ≥ 2 cup | 550 (67.6) | 111 (20.2) | 439 (79.8) | – | |