Parameter | % | 95% CI | N |
Age group (years) | |||
16–19 | 6.2 | (4.2 to 8.8) | 30 |
20–24 | 44.6 | (34.0 to 42.9) | 185 |
25–29 | 37.3 | (33.0 to 41.8) | 180 |
30–34 | 10.8 | (8.2 to 13.9) | 52 |
35–39 | 5.2 | (3.4 to 7.6) | 25 |
40+ | 2.1 | (1.0 to 3.8) | 10 |
Ethnic group | |||
White | 60.2 | (55.6 to 64.6) | 290 |
Black | 16.0 | (12.8 to 19.6) | 77 |
Asian | 8.9 | (6.5 to 11.8) | 43 |
Mixed | 11.2 | (8.5 to 14.4) | 54 |
Other | 2.3 | (1.1 to 4.0) | 11 |
Unknown* | 1.5 | (0.6 to 3.0) | 7 |
IMD quintile | |||
First (most deprived) | 35.2 | (30.9 to 39.7) | 169 |
Second | 42.5 | (38.0 to 47.1) | 204 |
Third | 19.2 | (15.9 to 23.3) | 92 |
Fourth | 2.9 | (1.6 to 4.9) | 14 |
Fifth (least deprived) | 0.2 | (0.0 to 1.2) | 1 |
Type of OCP at index order | |||
POP | 48.8 | (44.2 to 53.3) | 235 |
COC | 51.2 | (46.7 to 55.8) | 247 |
Index order successful | |||
Yes | 95.0 | (92.7 to 96.8) | 458 |
No | 5.0 | (3.2 to 7.3) | 24 |
*Service-users self-selected ‘prefer not to say’.
COC, combined oral contraceptive pill; IMD, Index of Multiple Deprivation; OCP, oral contraceptive pill; POP, progestogen-only pill.