Table 1. Observed contraceptive use at each survey.
| Contraceptive groups | Survey 4 (2006) Aged 28–33 | Survey 6 (2012) Aged 34–39 | Survey 8 (2018) Aged 40–45 | |
|---|---|---|---|---|
| N = 5387 | N = 5211 | N = 4686 | ||
| n (%) | n (%) | n (%) | ||
| Condom | 1688 (31.3%) | 1364 (26.2%) | 819 (17.5%) | |
| Short-acting contraceptionA | 2463 (45.7%) | 1484 (28.5%) | 718 (15.3%) | |
| LARCsB | 300 (5.6%) | 745 (14.3%) | 1008 (21.5%) | |
| Natural methodsC | 695 (12.9%) | 695 (13.3%) | 527 (11.2%) | |
| Sterilisation methodsD | 527 (9.8%) | 1160 (22.3%) | 1542 (32.9%) | |
| Other methods | 489 (9.1%) | 165 (3.2%) | 189 (4.0%) | |
| Emergency contraception | 63 (1.2%) | 36 (0.7%) | 15 (0.3%) | |
| No contraception | 350 (6.5%) | 495 (9.5%) | 581 (12.4%) | |
| Number of contraceptives | 0 | 350 (6.5%) | 495 (9.5%) | 581 (12.4%) |
| 1 | 3995 (74.2%) | 3882 (74.5%) | 3435 (73.3%) | |
| 2 | 962 (17.9%) | 778 (14.9%) | 646 (13.8%) | |
| 3 | 77 (1.4%) | 51 (1.0%) | 21 (0.4%) | |
| 4 | 3 (0.1%) | 4 (0.1%) | 2 (<1%) | |
| 5 | 0 (0.0%) | 0 (0.0%) | 1 (<1%) | |
| 6 | 0 (0.0%) | 1 (<1%) | 0 (0.0%) |
A Across all three time points, the short-acting category was composed of the oral contraceptive pill (91.5%), minipill (5.8%), vaginal ring (0.8%), and injection (2.4%).
B The long-acting reversible contraceptives (LARCs) category was composed of progestogen-only IUD (64.6%), implant (32.0%), and copper IUD (4.1%) across all time points.
C The natural methods category was dominated by the withdrawal method (88.8%) and fertility awareness methods (20.2%).
D The sterilisation category was dominated by vasectomy (80.0%) and tubal sterilisation (20.7%).
Note: Individual contraceptives that make up each category do not add to 100% due to respondents who reported more than one item.