Proportions and logistic regression analysis for main outcomes showing unadjusted and adjusted odds ratios (95% confidence intervals) for the online contraception and other services group (n=236)
| Parameter | Online contraception (SH:24) (n=138) | Other services (n=98) | Unadjusted analysis | Adjusted analysis* | Adjusted analysis† | ||
| % | 95% CI | % | 95% CI | OR (95% CI) | OR (95% CI) | OR (95% CI) | |
| Primary outcome | |||||||
| OCs continued | 69.6 | (61.2 to 77.1) | 38.8 | (29.1 to 49.2) | 3.61 (2.09 to 6.22) | 3.15 (1.71 to 5.79) | 2.94 (1.52 to 5.70) |
| Secondary outcomes | |||||||
| Any effective method continued | 70.3 | (61.9 to 77.8) | 46.9 | (36.8 to 57.3) | 2.67 (1.56 to 4.59) | 2.31 (1.25 to 4.26) | 2.12 (1.09 to 4.14) |
| Switch to condoms | 4.4 | (1.6 to 9.2) | 10.2 | (5.0 to 18.0) | 0.40 (0.14 to 1.14) | 0.63 (0.18 to 2.28) | 0.71 (0.15 to 3.40) |
| Pregnancy risk during study | 14.5 | (9.1 to 21.5) | 30.6 | (21.7 to 40.7) | 0.38 (0.20 to 0.73) | 0.41 (0.20 to 0.83) | 0.50 (0.23 to 1.08) |
*Adjusted for age group; ethnic group; IMD quintile; employment status; education level
†Adjusted for age group; ethnic group; IMD quintile; employment status; education level; smoking status; likelihood that OCs prescribed will be taken; previous use of EC; history of OC use
CI, confidence interval; EC, emergency contraception; IMD, Index of Multiple Deprivation; OC, oral contraceptive; OR, odds ratio.