Table 1. Summary of age distributions for the four phenotypic groups.

Phenotype	Sample size	Min	1st quantile	Mean	Max
Control	171	58	68	73	92
Dry	108	48	75	79	95
Dry+Wet	20	69	74	79	91
Wet	205	40	74	78	100

Counts, Hardy-Weinberg equilibrium tests, allele frequencies, genotypic association tests for three risk SNPs in each and combined cohorts.