Comparing variation across European countries: building geographical areas to provide sounder estimates.

  • Thygesen LC
  • Librero-López J
  • Martínez-Lizaga N
  • Ridao-López M
  • Bernal-Delgado E
  • ECHO Consortium
In geographical studies, population distribution is a key issue. An unequal distribution across units of analysis might entail extra-variation and produce misleading conclusions on healthcare performance variations. This article aims at assessing the impact of building more homogeneous units of analysis in the estimation of systematic variation in three countries.