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Table 4 Protective measures, malaria and nuisance mosquito densities and their scores in three different factors and the percent of the variance these factors account for derived through principal component analysis.

From: Interdependence of domestic malaria prevention measures and mosquito-human interactions in urban Dar es Salaam, Tanzania

   Factor 1 Factor 2 Factor 3
  % of Variance 24.55 21.41 15.67
Scores Complete ceilinga -0.477 0.646 0.039
  Good screeningb -0.155 0.629 -0.362
  Other personal protectionc -0.528 0.392 0.374
  Bednet use 0.773 0.236 -0.223
  ITN use 0.628 0.508 -0.076
  Mean log (An. gambiae s.l.) 0.334 -0.068 0.764
  Mean log Culex 0.289 0.463 0.430
  1. a Complete and partly complete ceiling board
  2. b Screening without holes, with small holes or glass windows
  3. c Coils, spray and/or repellent
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