Effect of baseline covariates and associations with mortality assessed by Cox regressions (N = 6,704).

a<p>Age and gender adjusted.</p>b<p>Adjusted for age at assessment, gender, ethnicity group, marital status, and index of deprivation score; HR = 1.23 (95% CI: 1.18, 1.28) for each quintile increment.</p><p>* P-value<0.01,</p>∧<p>p-value<0.05.</p>+<p>P-value of test for linear trend <0.001.</p><p>Effect of baseline covariates and associations with mortality assessed by Cox regressions (N = 6,704).</p>