Table 2. Intrauterine device continuation at 2, 4, and 5 years.
| Continuation status | All | LNG-IUD | Cu-IUD | Pa |
|---|---|---|---|---|
| 2y | .11 | |||
| Continued | 491 (63.6) | 412 (64.9) | 79 (57.7) | |
| Discontinued | 281 (36.4) | 223 (35.1) | 58 (42.3) | |
| Total | 772 | 635 | 137 | |
| 3y | <.01 | |||
| Continued | 390 (52.3) | 336 (54.7) | 54 (41.2) | |
| Discontinued | 355 (47.7) | 278 (45.3) | 77 (58.8) | |
| Total | 745 | 614 | 131 | |
| 4y | <.01 | |||
| Continued | 307 (42.9) | 265 (45.1) | 42 (32.6) | |
| Discontinued | 409 (57.1) | 322 (54.9) | 87 (67.4) | |
| Total | 716 | 587 | 129 | |
| 5y | .33 | |||
| Continued | 187 (27.3) | 158 (28.1) | 29 (23.8) | |
| Discontinued | 498 (72.7) | 405 (71.9) | 93 (76.2) | |
| Total | 685 | 563 | 122 |
Data are presented as n (%) unless otherwise notes and exclude those lost to follow-up at each time point.
CU, copper; IUD, intrauterine device; LNG, levonorgestrel.
a
P compares continuation rates between LNG-IUD and Cu-IUD users.