From: Comparison of methods for correcting population stratification in a genome-wide association study of rheumatoid arthritis: principal-component analysis versus multidimensional scaling
Analysis method
p-Value
Rank in non-HLA SNPs
Trend test without adjustment
5.42 × 10-12
3
Logistic regression adjusted for principal components
0.000018
18
Logistic regression adjusted for MDS dimensions
0.000022
59