Figure 3

Kaplan–Meier plot stratified by neurocognitive status. Median survival time impaired (global T score ≤ 40) = 11.8 years (95% CI 9.6–15.5). Median survival time unimpaired (global T score > 40) = 14.1 years (95% CI 9.6). *The upper limit of confidence interval for median survival time in unimpaired group is not estimable because of censored data.