Table 2.
Profile of the study population according to compliance
| Total | Compliant | Noncompliant | p Value | |
|---|---|---|---|---|
| Age, years (mean (SD)) |
25.29 (4.79) |
25.50 (4.77) |
25.10 (4.79) |
<0.0001a |
| Time using the current method, months (mean (SD)) |
27.08 (24.84) |
24.82 (23.28) |
29.16 (26.04) |
<0.0001a |
| Obstetric history (mean (SD)) |
|
|
|
|
| Pregnancies |
0.36 (0.79) |
0.35 (0.74) |
0.38 (0.83) |
<0.3966a |
| Deliveries |
0.26 (0.60) |
0.25 (0.57) |
0.27 (0.63) |
<0.5212a |
| Abortions (spontaneous) |
0.05 (0.26) |
0.05 (0.26) |
0.05 (0.26) |
<0.7648a |
| Abortions (induced) |
0.08 (0.35) |
0.06 (0.27) |
0.10 (0.42) |
<0.0001a |
| Live childbirths |
0.17 (0.50) |
0.15 (0.47) |
0.18 (0.53) |
0.0436a |
| Stable partner |
|
|
|
<0.0001b |
| Yes |
7,106 (82.1%) |
3,525 (84.9%) |
3,581 (79.5%) |
|
| No |
1,549 (17.9%) |
628 (15.1%) |
921 (20.5%) |
|
| Education |
|
|
|
<0.0001c |
| Primary |
934 (10.8%) |
358 (8.6%) |
576 (12.8%) |
|
| Secondary |
3,885 (44.8%) |
1,817 (43.6%) |
2,068 (45.8%) |
|
| University |
3,863 (44.5%) |
1,993 (47.8%) |
1,870 (41.4%) |
|
| Occupational status |
|
|
|
<0.0003c |
| Working outside the home |
4,960 (57.3%) |
2,474 (59.5%) |
2,486 (55.2%) |
|
| Homemaker |
561 (6.5%) |
244 (5.9%) |
317 (7.0%) |
|
| Student |
2,353 (27.2%) |
1,091 (26.2%) |
1,262 (28.0%) |
|
| Unemployed |
790 (9.1%) |
349 (8.4%) |
441 (9.8%) |
|
| Information on treatment |
|
|
|
<0.0001c |
| Very informed |
902 (44.8%) |
2,309 (55.2%) |
1,593 (35.1%) |
|
| Normal |
4,495 (51.5%) |
1,814 (43.4%) |
2,681 (59.2%) |
|
| Not very informed |
307 (3.5%) |
61 (1.4%) |
246 (5.4%) |
|
| Not interested |
15 (0.2%) |
0 (0%) |
15 (0.3%) |
|
| Understanding of information and instructions |
|
|
|
<00001c |
| Not interested |
11 (0.1%) |
2 (0.05%) |
9 (0.2%) |
|
| Anything |
20 (0.2%) |
4 (0.1%) |
16 (0.4%) |
|
| Not understanding a lot of things |
393 (4.5%) |
70 (1.7%) |
323 (7.1%) |
|
| Understanding almost all |
2,719 (31.2%) |
1,046 (24.9%) |
1,673 (36.9%) |
|
| Complete understanding |
5,587 (64.1%) |
3,076 (73.3%) |
2,511 (55.4%) |
|
| Partner support |
|
|
|
<.0001c |
| Always reminding |
2,992 (34.3%) |
1,724 (41.2%) |
1,268 (28.1%) |
|
| Absence of partner |
1,128 (13.0%) |
458 (10.9%) |
670 (14.8%) |
|
| Indifferent |
1,349 (15.5%) |
540 (12.9%) |
809 (17.9%) |
|
| Sometimes |
3,239 (37.2%) |
1,467 (35.0% |
1,772 (39.2%) |
|
| Interest in not becoming pregnant |
|
|
|
<.0001c |
| Very interested |
5,823 (66.7%) |
2,893 (68.9%) |
2,930 (64.6%) |
|
| Interested |
1,551 (17.8%) |
737 (17.6%) |
814 (18.0%) |
|
| Prefer not to get pregnant |
1,174 (13.5%) |
489 (11.7%) |
685 (15.1%) |
|
| Not mind |
179 (2.0%) |
76 (1.8%) |
103 (2.3%) |
|
| Belief that participation would avoid forgetfulness/delays |
|
|
|
<0.0001c |
| More |
564 (6.6%) |
349 (8.6%) |
215 (4.8%) |
|
| The same |
3,613 (42.3%) |
1,905 (46.9%) |
1,708 (38.2%) |
|
| Less |
4,357 (51.1%) |
1,808 (44.5%) |
2,549 (57.0%) |
|
| Routine method |
|
|
|
|
| At the same time every day |
5,837 (67.6%) |
2,990 (72.1%) |
2,847 (63.5%) |
< 0.0001c |
| Daily task |
1,472 (17.1%) |
746 (18.0%) |
726 (16.2%) |
|
| Thinking of it but not yet organized |
712 (8.3%) |
96 (2.3%) |
616 (13.7%) |
|
| Not interested |
183 (2.1%) |
60 (1.5%) |
123 (2.7%) |
|
| Other |
429 (4.3%) |
254 (6.1%) |
175 (3.9%) |
|
| Difficulties remembering to take/use/remove the contraceptive method |
|
|
|
|
| During the week, from Monday to Friday |
856 (9.8%) |
221 (5.3%) |
635 (14.0%) |
< 0.0001b |
| On vacation |
2,745 (31.3%) |
1,372 (32.6%) |
1,373 (30.2%) |
0.015 b |
| On weekend |
2,426 (27.7%) |
756 (18.0%) |
1,670 (36.7%) |
< 0.0001b |
| On short trips |
966 (11.0%) |
492 (11.7%) |
474 (10.4%) |
0.0604b |
| Going out the night before |
1127 (12.9%) |
422 (10.0%) |
705 (15.5%) |
< 0.0001b |
| Travelling to a different time zone | 513 (5.9%) | 328 (7.8%) | 185 (4.1%) | < 0.0001b |
aWilcoxon-Mann–Whitney test.
bFisher exact test.
cChi-squared test.
p < 0.05.
SD: Standard Deviation.