Distribution of genotypes and hazard ratio (HR) for all-cause mortality.

*<p>Due to the low frequency of individuals being homozygous for the minor allele heterozygotes and homozygotes variants were combined</p>**<p>Differences in genotype distribution between alive subjects and those who died (excluding external causes of death) tested with χ² test</p>***<p>Cox regression adjusted for age, gender and packyears at visit in 1989/90