Table 1.
Usual use of contraceptive methods among women aged 16–44 years who ever reported vaginal intercourse: Natsal-2 and Natsal-3
| Denominator (unweighted, weighted)* | Natsal-2: usual use | Natsal-3: usual use | ||
| 5178, 4651 | 5237, 3657 | |||
| n | % (95% CI) | n | % (95% CI) | |
| Most effective methods | 1141, 1077 | 21.5 (20.4 to 22.8) | 944, 762 | 21.1 (19.7 to 22.6) |
| Intrauterine device | 265. 221 | 4.4 (3.9 to 5.0) | 230. 187 | 5.2 (4.4 to 6.1) |
| Hormonal intrauterine system (Mirena) | 44, 35 | 0.7 (0.5 to 1.0) | 105, 96 | 2.6 (2.1 to 3.3) |
| Implant | 15, 14 | 0.3 (0.2 to 0.5) | 348, 194 | 5.4 (4.8 to 6.0) |
| Male sterilisation | 445, 446 | 8.9 (8.1 to 9.8) | 162, 177 | 4.9 (4.1 to 5.8) |
| Female sterilisation | 382, 370 | 7.4 (6.6 to 8.3) | 106, 114 | 3.2 (2.6 to 3.9) |
| Effective methods† | 1940, 1747 | 34.9 (33.5 to 36.4) | 1953, 1194 | 33.1 (31.6 to 34.6) |
| Pill | 1769, 1599 | 32.0 (30.6 to 33.4) | 1741, 1064 | 29.5 (28.1 to 30.9) |
| Injections | 171, 148 | 3.0 (2.5 to 3.5) | 210, 128 | 3.6 (3.0 to 4.1) |
| Less effective methods† | 1641, 1417 | 28.3 (27.0 to 29.7) | 1356, 940 | 26.1 (24.6 to 27.5) |
| Male condom | 1360, 1184 | 23.7 (22.4 to 25.0) | 1229, 833 | 23.1 (21.7 to 24.5) |
| Cap/diaphragm† | 45, 31 | 0.6 (0.4 to 0.9) | – | – |
| Natural family planning (rhythm) | 104, 85 | 1.7 (1.3 to 2.1) | 37, 35 | 1.0 (0.7 to 1.4) |
| Withdrawal | 173, 150 | 3.0 (2.6 to 3.5) | 92, 75 | 2.1 (1.6 to 2.6) |
| No method used | 1030, 826 | 16.5 (15.5 to 17.6) | 1173, 853 | 23.6 (22.3 to 25.0) |
| No vaginal sex in last year | 463, 309 | 6.0 (5.4 to 6.7) | 408, 271 | 7.4 (6.6 to 8.3) |
*Denominator is Natsal population aged 16–44 years, excluding those who have never had vaginal intercourse.
†Numbers too small for patch (effective), cap/diaphragm in Natsal-3 (less effective), female condom (less effective), spermicides (less effective)