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Figure 4: Cumulative disability in seniors by risk groups. Lifetime disability is estimated by summing disability reported from each year for each subject, then averaging by risk group. Results are consistent across men, women, all subjects, survivors, decedents, those with no disability at baseline, and other subgroups at baseline. Greater numbers of risk factors are consistently associated with much more cumulative lifetime disability, a surrogate metric for Compression of Morbidity.