Context matters: interpreting impact findings in child survival evaluations.

@article{Victora2005ContextMI,
  title={Context matters: interpreting impact findings in child survival evaluations.},
  author={C{\'e}sar Gomes Victora and Joanna R M Armstrong Schellenberg and Luis Huicho and Jo{\~a}o Ferreira do Amaral and Shams el Arifeen and George William Pariyo and Fatuma Manzi and Robert W Scherpbier and Jennifer Bryce and J P Habicht},
  journal={Health policy and planning},
  year={2005},
  volume={20 Suppl 1},
  pages={i18-i31}
}
Appropriate consideration of contextual factors is essential for ensuring internal and external validity of randomized and non-randomized evaluations. Contextual factors may confound the association between delivery of the intervention and its potential health impact. They may also modify the effect of the intervention or programme, thus affecting the generalizability of results. This is particularly true for large-scale health programmes, for which impact may vary substantially from one… CONTINUE READING

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