Table 4:

Performance of the 3 outcome-specific and general-outcome primary (20-condition) scores in 2 validation data sets^*

Outcome	Adjusted score^†; C-index value (95% CI)			Unadjusted score; C-index value (95% CI)

	Cambridge outcome-specific score	Cambridge general-outcome score^‡	Charlson Comorbidity Index	Cambridge outcome-specific score	Cambridge general-outcome score^‡	Charlson Comorbidity Index
Primary care consultations

2015, 1 yr	0.727 (0.725–0.728)	0.723 (0.722–0.725)	0.691 (0.690–0.693)	0.692 (0.691–0.694)	0.690 (0.689–0.691)	0.605 (0.603–0.606)

2011, 5 yr	0.735 (0.734–0.736)	0.729 (0.728–0.730)	0.709 (0.708–0.711)	0.669 (0.668–0.671)	0.667 (0.665–0.668)	0.585 (0.583–0.586)

Unplanned admissions

2015, 1 yr	0.738 (0.732–0.743)	0.735 (0.729–0.740)	0.703 (0.697–0.709)	0.733 (0.728–0.739)	0.731 (0.726–0.737)	0.660 (0.656–0.664)

2011, 5 yr	0.708 (0.705–0.712)	0.706 (0.703–0.709)	0.683 (0.680–0.686)	0.694 (0.691–0.698)	0.692 (0.689–0.695)	0.623 (0.621–0.625)

Mortality

2015, 1 yr	0.910 (0.904–0.917)	0.913 (0.907–0.920)	0.907 (0.900–0.914)	0.868 (0.857–0.879)	0.880 (0.872–0.889)	0.804 (0.792–0.815)

2011, 5 yr	0.889 (0.885–0.892)	0.891 (0.887–0.894)	0.887 (0.883–0.890)	0.795 (0.788–0.801)	0.824 (0.819–0.830)	0.742 (0.736–0.748)

Note: CI = confidence interval.
↵* Validation data sets: 2015 data set with 1 year of follow-up and 2011 data set with up to 5 years of follow-up, with the Charlson Comorbidity Index for comparison.
↵† Scores adjusted by age and sex.
↵‡ The general-outcome score was constructed by averaging the standardized weights of the 3 simple scores.