Table 4.
Pathway analysis results for lethal prostate cancer and gene sets in the vitamin D pathway
Gene | Chromosome | Size, kb | No. of SNPs included* | Global P from kernel machine analysis† | Global P from kernel machine analysis adjusted for 25(OH)D† |
VDR | 12 | 63.49 | 28 | .01 | .01 |
CYP27B1 | 12 | 4.86 | 3 | .75 | .70 |
GC | 4 | 42.48 | 12 | .80 | .65 |
CYP27A1 | 20 | 20.54 | 5 | .02 | .02 |
CYP2R1 | 2 | 33.31 | 6 | .14 | .10 |
CYP24A1 | 11 | 14.2 | 18 | .45 | .45 |
RXRA | 9 | 114 | 20 | .09 | .10 |
Total Pathway | 92 | .008 | .006 |
Ninety-seven SNPs originally selected; two SNPs failed genotyping; two were out of Hardy–Weinberg equilibrium, at P < .001; and one was eliminated because frequency in sample did not match that of phased haplotypes for imputation; therefore, a total of 92 SNPs were included in pathway analysis.
P values were calculated using a logistic kernel machine model and were two-sided.