Risk of lung cancer-specific death in proband's relative (child, sibling, spouse) depending on proband survival.

a<p>Multivariate proportional hazard (Cox) model adjusted for calendar year of diagnosis and age at diagnosis.</p>b<p>One degree of freedom.</p>c<p>Multivariate proportional hazard (Cox) model adjusted for calendar year, age and place of diagnosis, socioeconomic status, tumour histology and gender.</p>d<p>Parents (Spouses) diagnosed between January 1961 and December 2001.</p>e<p>Children (siblings) diagnosed between January 1991 and December 2001.</p

Period, age, histology, socioeconomic status and gender distributions in relative pairs with lung cancer.

<p>Period, age, histology, socioeconomic status and gender distributions in relative pairs with lung cancer.</p