Table 1 Profile of the study population according to delivery system
Total | Pill | Patch | Ring | p Value | |
|---|---|---|---|---|---|
Age, years (mean (SD)) | 25.29 (4.79) | 25.14 (4.81) | 25.49 (4.78) | 25.56 (4.71) | <0.0001a |
Time using the current method, months (mean (SD)) | 27.08 (24.84) | 30.83 (28.40) | 19.28 (15.07) | 21.57 (16.01) | <0.0001a |
Obstetric history (mean (SD)) | |||||
Pregnancies | 0.36 (0.79) | 0.36 (0.79) | 0.52 (0.87) | 0.32 (0.75) | <0.0001a |
Deliveries | 0.26 (0.60) | 0.26 (0.60) | 0.37 (0.71) | 0.22 (0.56) | <0.0001a |
Abortions (spontaneous) | 0.05 (0.26) | 0.05 (0.25) | 0.09 (0.35) | 0.05 (0.23) | 0.001a |
Abortions (induced) | 0.08 (0.35) | 0.09 (0.38) | 0.12 (0.38) | 0.06 (0.27) | <0.0001a |
Live childbirths | 0.17 (0.50) | 0.17 (0.50) | 0.22 (0.58) | 0.14 (0.47) | 0.0004a |
Stable partner | |||||
Yes | 7,106 (82.1%) | 4,367 (81.5%) | 679 (80.6%) | 2,060 (83.9%) | <0.0153b |
No | 1,549 (17.9%) | 991 (18.5%) | 164 (19.5%) | 394 (16.1%) | |
Education | <0.0001b | ||||
Primary | 934 (10.8%) | 655 (12.2%) | 109 (12.9%) | 170 (6.9%) | |
Secondary | 3,885 (44.8%) | 2,479 (46.2%) | 406 (47.9%) | 1,000 (40.5%) | |
University | 3,863 (44.5%) | 2,233 (41.6%) | 333 (39.3%) | 1,297 (52.6%) | |
Occupational status | <0.0001b | ||||
Working outside the home | 4,960 (57.3%) | 3,018 (56.28%) | 476 (56.4%) | 1,466 (59.6%) | |
Homemaker | 561 (6.5%) | 363 (6.8%) | 90 (10.7%) | 108 (4.4%) | |
Student | 2,353 (27.2%) | 1,451 (27.1%) | 208 (24.6%) | 694 (28.2%) | |
Unemployed | 790 (9.1%) | 530 (9.9%) | 70 (8.3%) | 190 (7.7%) | |
Reasons for omission/delay | |||||
Forgetfulness/delays | 2,622 (71.2%) | 1,996 (74.9%) | 172 (47.8%) | 494 (69.1%) | <0.0001b |
Altered libido | 214 (5.8%) | 180 (6.8%) | 14 (3.9%) | 20 (3.0%) | 0.0003b |
Weight gain | 211 (5.7%) | 201 (7.5%) | 4 (1.1%) | 6 (0.9%) | <0.0001b |
Common course of action after noncompliance | |||||
Use the contraceptive as soon as possible | 2,396 (65.1%) | 1,745 (65.5%) | 235 (65.3%) | 416 (63.3%) | 0.5868 b |
Consult a health care provider | 598 (22.1%) | 337 (16.2%) | 76 (14.1%) | 145 (21.1%) | <0.0001b |
Use two or more methods to compensate for the days missed | 353 (9.6%) | 339 (12.7%) | 5 (1.4%) | 9 (1.4%) | <0.0001b |
Routine method | <0.0001b | ||||
At the same time every day | 5,837 (67.6%) | 3,621 (67.6) | 515 (61.0%) | 1,701 (70.0%) | |
Daily task | 1,472 (17.1%) | 933 (17.4) | 168 (19.9%) | 371 (15.3%) | |
Thinking of it but not yet organized | 712 (8.3%) | 514 (9.6%) | 85 (10.1%) | 113 (4.7%) | |
Not interested | 183 (2.1%) | 117 (2.2%) | 38 (4.5%) | 28 (1.2%) | |
Others | 429 (5.0%) | 174 (3.3%) | 38 (4.5%) | 217 (8.9%) | |
Difficulties remembering to use the contraceptive method | |||||
During the week, from Monday to Friday | 856 (9.8%) | 510 (9.4%) | 86 (10.1%) | 260 (10.5%) | 0.3234 b |
On vacation | 2,745 (31.3%) | 1,531 (28.2%) | 279 (32.6%) | 935 (37.6%) | <0.0001b |
On weekend | 2,426 (27.7%) | 1,889 (34.8%) | 175 (20.4%) | 362 (14.6%) | <0.0001b |
On short trips | 966 (11.0%) | 606 (11.2%) | 101 (11.8%) | 259 (10.4%) | 0.4592 b |
Going out the night before | 1,127 (12.9%) | 863 (15.9%) | 114 (13.3%) | 150 (6.0%) | <0.0001b |
Travelling to a different time zone | 513 (5.9%) | 206 (3.8%) | 46 (5.4%) | 261 (10.5%) | <0.0001b |