Table 2.
Intraclass correlation coefficients for the ALDS, PCS and MCS (SF-12) between patients and their proxies
| All patients (n = 140) | All ICU patients (n = 70) | ICU scheduled admissions (n = 14) | ICU emergency admissions (n = 56) | All emergency CCU patients (n = 70) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ICC | 95% CI | P value | ICC | 95% CI | P value | ICC | 95% CI | P value | ICC | 95% CI | P value | ICC | 95% CI | P value | |
| ALDS | 0.857 | 0.806 to 0.896 | < 0.001 | 0.861 | 0.786 to 0.911 | < 0.001 | 0.755 | 0.410 to 0.913 | 0.001 | 0.889 | 0.817 to 0.934 | < 0.001 | 0.855 | 0.776 to 0.907 | < 0.001 |
| SF-12 | |||||||||||||||
| PCS | 0.798 | 0.728 to 0.851 | < 0.001 | 0.789 | 0.681 to 0.863 | < 0.001 | 0.758 | 0.369 to 0.920 | 0.001 | 0.785 | 0.661 to 0.879 | < 0.001 | 0.807 | 0.706 to 0.876 | < 0.001 |
| MCS | 0.679 | 0.579 to 0.759 | < 0.001 | 0.612 | 0.443 to 0.739 | < 0.001 | 0.587 | 0.097 to 0.852 | 0.014 | 0.630 | 0.445 to 0.764 | < 0.001 | 0.740 | 0.610 to 0.830 | < 0.001 |
Summary of intraclass correlation coefficients (ICCs) of the Academic Medical Center Linear Disability Score (ALDS) and the Short Form 12 (SF-12) physical component score (PCS) and mental component score (MCS) summary scores between patients and their proxies for all patients, for all ICU patients, for ICU scheduled admissions, for ICU emergency admissions and for coronary care unit (CCU) patients separately. CI, confidence interval.