Table 1

Determinants of per capita monthly immunisations at health centres in Ifanadiana district, 2014–2018 (Generalized Linear Mixed Model (GLMM), multivariate results*)

VariableBCG immunisationsPolio immunisation (third dose)DTP immunisation (third dose)Measles immunisation
Monthly coverage at baseline (intercept)0.04 (0.03 to 0.04)0.06 (0.06 to 0.07)0.06 (0.06 to 0.07)0.06 (0.05 to 0.06)
Time-varying factors
 Annual change1.23 (1.22 to 1.25)1.06 (1.05 to 1.07)1.06 (1.05 to 1.07)1.1 (1.09 to 1.11)
 Seasonal changes1.05 (1.03 to 1.07)1.05 (1.03 to 1.07)1.06 (1.04 to 1.08)0.98 (0.96 to 1)
Effect of programmes and policies
 Mother and child week (2 months per year)1.95 (1.89 to 2.02)2 (1.93 to 2.06)1.95 (1.89 to 2.01)1.88 (1.82 to 1.95)
 Health system strengthening (HSS)1.4 (1.29 to 1.52)1.34 (1.25 to 1.44)1.49 (1.39 to 1.6)1.22 (1.14 to 1.32)
  HSS×annual change0.95 (0.93 to 0.97)0.92 (0.91 to 0.94)0.91 (0.9 to 0.93)0.92 (0.91 to 0.94)
  HSS×mother and child weeks0.73 (0.69 to 0.77)0.62 (0.58 to 0.66)0.65 (0.61 to 0.69)0.77 (0.73 to 0.82)
  • *Results are expressed as probabilities for the intercept and as OR with associated 95% CIs for all other variables. Models initially controlled for health system factors (type of health centre and baseline differences in HSS catchment vs control) but these were removed in the final reduced models for lack of statistical association.

  • DTP, diphtheria, tetanus and pertussis.