Table 1.
Comparison of demographic and clinical characteristics between groups.
| Characteristics | Group I 0.5 to 0.69-time segment (n=53) | Group II 0.7 to 0.89-time segment (n=67) | Group III 0.9 to 1.0-time segment (n=72) | ||||
|---|---|---|---|---|---|---|---|
| Quantitative§ | median (IQR) | min; max | median (IQR) | min; max | median (IQR) | min; max | p |
| Age, years | 33 (11) | 18-47 | 34 (10) | 22-47 | 36.50 (11) | 23-49 | 0.011* |
| Body mass index, kg/m2 | 25.67 (7.50) | 16.89-42.97 | 25.96 (4.64) | 17.30-34.89 | 25.87 (5.80) | 17.78-39.45 | 0.884 |
| Time since last delivery, months | 24 (113) | 2-288 | 48 (144) | 2-276 | 108 (149) | 2-324 | 0.017* |
| Qualitative ‡ | Frequency | % | Frequency | % | Frequency | % | p-value |
| Number of vaginal deliveries | 0.338 | ||||||
| 1 | 7 | 38.9 | 5 | 33.3 | 5 | 27.8 | |
| 2 | 15 | 28.3 | 21 | 39.6 | 17 | 32.1 | |
| >2 | 13 | 25.0 | 14 | 26.9 | 25 | 48.1 | |
| Prior abortion | 0.278 | ||||||
| No | 36 | 30.8 | 42 | 35.9 | 39 | 33.3 | |
| Yes | 17 | 22.7 | 25 | 33.3 | 33 | 44.0 | |
| Prior curettage | 0.113 | ||||||
| No | 47 | 30.9 | 52 | 34.2 | 53 | 34.9 | |
| Yes | 6 | 15.0 | 15 | 37.5 | 19 | 47.5 | |
| Previous IUD insertion | 0.065 | ||||||
| No | 23 | 37.1 | 22 | 35.5 | 17 | 27.4 | |
| Yes | 30 | 23.1 | 45 | 34.6 | 55 | 42.3 | |
| Type of delivery | 0.829 | ||||||
| VD | 35 | 28.5 | 41 | 33.3 | 47 | 38.2 | |
| CS | 18 | 26.1 | 26 | 37.7 | 25 | 36.2 | |
Abbreviations: Min, minimum; Max, maximum; IQR, interquartile range; IUD, intrauterine device; VD, vaginal delivery; CS, cesarean delivery
The time segments during menstruation were calculated for each participant by dividing the menstrual cycle day of IUD insertion to total number of menses days.
*p<0.05 indicates statistical significance.
§ Kruskal-Wallis test.
‡ Chi-square test.