Table 1 Characteristics of the study population
Median (IQR) or N (%) | Total sample (N = 731) | Use of MC (N = 136) | No use of MC (N = 595) | p value |
|---|---|---|---|---|
Age (years) | 27 (25–29) | 27 (25–30) | 27 (25–29) | 0.108 |
BMI (kg/m2) | 21.3 (19.8–23.4) | 21.3 [20.0-23.3] | 21.2 [19.7–23.4] | 0.915 |
NA | 6 | 0 | 6 | |
Nulliparity | 657 (89.9%) | 124 (91.2%) | 533 (89.6%) | 0.578 |
Never been pregnant | 595 (81.4%) | 120 (88.2%) | 475 (79.8%) | 0.023 |
Surgical abortion within 6 weeks of IUD insertion | 26 (3.6%) | 5 (3.7%) | 21 (3.5%) | 0.933 |
History of IUD expulsion | 56 (7.7%) | 15 (11.0%) | 41 (6.9%) | 0.102 |
IUD type : | ||||
Hormonal Copper | 171 (23.4%) | 8 (5.9%) | 163 (27.4%) | < 0.001 |
560 (76.6%) | 128 (94.1%) | 432 (72.6%) | ||
Time since IUD insertion (months) | 7.7 (2.6–23.5) | 15.4 (4.2–29.8) | 5.2 (2.5–20.9) | < 0.001 |
Dysmenorrhea since IUD insertion | 254 (34.9%) | 51 (37.5%) | 203 (34.3%) | 0.479 |
NA | 3 | 0 | 3 | |
Heavy menstruation since IUD insertion: | 270 (37.8%) | 62 (47.0%) | 208 (35.7%) | 0.016 |
NA | 16 | 4 | 12 |