Main results: link between SIA exposure and routine childhood immunisation uptake
| Dependent variable: Non-polio full immunisation | Full model | Exposure decomposition by period | Interaction model (EXPxAGE) |
| Model no | (1) | (2) | (3) |
| EXP_CHI | −0.024† | 0.012 | |
| (−0.036 to –0.012) | (−0.009 to 0.034) | ||
| EXP_CHI_RI | −0.024* | ||
| (−0.048 to 0.000) | |||
| EXP_CHI_FU | −0.024† | ||
| (−0.037 to –0.010) | |||
| EXPxAGE | −0.001† | ||
| (−0.001 to –0.001) | |||
| CHI_AGE | 0.078† | 0.078† | 0.038† |
| (0.063 to 0.093) | (0.063 to 0.093) | (0.031 to 0.044) | |
| CHI_AGE2 | −0.001† | −0.001† | |
| (−0.001 to –0.001) | (−0.001 to –0.001) | ||
| Level 1 observations (child) | 24 381 | 24 381 | 24 381 |
| Level 2 observations (LGA) | 684 | 684 | 684 |
| Akaike information criterion | 18 030.298 | 18 032.469 | 18 055.959 |
| Prob.>Χ2 | <0.001 | <0.001 | <0.001 |
Notes. Two-level logistic regression with LGA random effect. Sample include children aged 10–60 months who were alive at the time of the survey and born between Octber 2000 and December 2017. Dependent variable: full immunisation, defined as at least one dose of BCG, three doses of DPT and one dose of measles vaccine as recalled by mother and/or reported by child’s health card. Main results only, omitting child, parental and household determinants of immunisation, survey round dummy, constant and multilevel variance parameter. Interaction terms between SIA exposure and survey round dummy were not statistically significant and the associated models have been omitted from the main results. Coefficients reported, 95% CIs in brackets.
*P<0.10.
†P<0.01.
BCG, Bacillus Calmette-Guerin; DPT, diphtheria, pertussis and tetanus; LGA, local government area; SIA, supplementary immunisation activity.