[Effect of sample design in the analysis of complex surveys. Application to the health survey of Catalonia]

Gac Sanit. 2000 Sep-Oct;14(5):399-402. doi: 10.1016/s0213-9111(00)71500-7.
[Article in Spanish]


Objective: To illustrate the way in which a sample design can be easily incorporated into the statistical analysis of complex surveys to obtain correct estimates.

Methods: A statistical program (STATA) was used to analyze the Catalan Health Survey (Spain) for the year 1994.

Results: If the sample design is taken into account, the estimates are unbiased. If only the weights are taken into account, unbiased point estimates are obtained, but the standard errors tend to be underestimated.

Conclusions: The current availability of statistical programs that allow to incorporate easily the sample design should encourage researchers to better analyze their surveys.

Publication types

  • English Abstract

MeSH terms

  • Blood Pressure Determination / statistics & numerical data
  • Confidence Intervals
  • Health Surveys*
  • Linear Models
  • Logistic Models
  • Random Allocation
  • Sampling Studies*
  • Software*
  • Spain