Interventions | Recruitment in intervention group | Recruitment in control group | Difference in recruitment intervention minus control (95Â % CI) adjusted for the clustering effect of household (395 households) | OR (95Â % CI) for recruitment into study adjusted for clustering effect of household (395 households) |
---|---|---|---|---|
Telephone (groups 3 + 4 versus control (groups 1 + 2) | 134/280 (47.9 %) | 106/280 (37.9 %) | 10.0 % (0.2–19.8 %) | 1.5 (1.0–2.3) |
 |  |  |  | P = 0.046 |
Questionnaire (groups 2 + 4) versus control (groups 1 + 3) | 116/280 (41.4 %) | 124/280 (44.3 %) | −2.9 % (−12.7–7.0 %) | 0.9 (0.6–1.3) |
 |  |  |  | P = 0.570 |