Table 2: Factors associated with occurrence of dysmenorrhea during the previous year among the participating university students, Beni-Suef University, 2017-2018.
| Socio-demographic and Gynaecological Data | Dysmenorrhea n = 1773 (%) | No Dysmenorrhea n = 135 (%) | P value | |
| Age (Mean ± Sd) | 20.8 ± 1.7 | 20.6 ± 1.9 | 0.365 | |
| Residence | Urban | 1103 (62.2) | 78 (57.8) | 0.176 |
| Rural | 670 (37.8) | 57 (42.2) | ||
| Father's Education | Illiterate | 133 (7.5) | 13 (9.6) | 0.443 |
| Elementary | 295 (16.6) | 26 (19.3) | ||
| High | 1345 (75.9) | 96 (71.1) | ||
| Mother's Education | Illiterate | 261 (14.7) | 24 (17.8) | 0.562 |
| Elementary | 298 (16.8) | 24 (17.8) | ||
| High | 1214 (68.5) | 87 (64.4) | ||
| Physical Activity | 373 (21.0) | 26 (19.3) | 0.358 | |
| Sleeping Hours/Day (Mean ± Sd) | 8.3 ± 1.6 | 8.3 ± 1.5 | 0.986 | |
| Sleeping Quality score points (Mean ± Sd) | 3.5 ± 2.0 | 2.5 ± 1.8 | P < 0.0001* | |
| Exposure to Passive Smoking | 739 (41.7) | 51 (37.8) | 0.213 | |
| Circumcision | 883 (49.8) | 74 (54.8) | 0.151 | |
| Marriage | 80 (4.5) | 7 (5.2) | 0.420 | |
| Menarche Age (Mean ± Sd) | 13.0 ± 1.4 | 13.1 ± 1.6 | 0.667 | |
| Menstrual Cycle Duration (Mean ± Sd) | 28.4 ± 5.8 | 28.1 ± 6.6 | 0.669 | |
| Menstrual Flow Duration (Mean ± Sd) | 5.2 ± 1.4 | 5.3 ± 1.7 | 0.604 | |
*Highly significant.