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Table 3 Marginally significant p-values before and after principal component correction

From: Comparison of multimarker logistic regression models, with application to a genomewide scan of schizophrenia

Model

# marginally significant p-values without PC adjustment

# marginally significant p-values with PC adjustment

Main-effects

111

82

Main+adj

105

76

Haplotype

58

48

  1. Number of p-values < × 10-4 for each model with and without principal components.