TABLE 3.
Predictive ability for the composite event.
| Models | cNRI | (95% CI) | P-value | IDI | (95% CI) | P-value |
| Baseline model | ||||||
| + Social frailty | 0.480 | (0.247, 0.713) | <0.01 | 0.017 | (−0.0006, 0.035) | 0.06 |
| + Do you go out less frequently compared with last year? (yes) | –0.049 | (−0.400, 0.302) | 1.00 | 0.000 | (−0.0001, 0.0001) | 0.79 |
| + Do you sometimes visit friends? (no) | 0.366 | (0.134, 0.598) | <0.01 | 0.016 | (0.001, 0.031) | 0.04 |
| + Do you feel you are helpful toward friends or family? (no) | 0.562 | (0.298, 0.827) | <0.01 | 0.031 | (0.006, 0.056) | 0.02 |
| + Do you live alone? (yes) | 0.097 | (−0.152, 0.346) | 0.44 | 0.002 | (−0.002, 0.006) | 0.43 |
| +Do you talk with someone everyday? (no) | 0.219 | (−0.005, 0.443) | 0.06 | 0.005 | (−0.005, 0.014) | 0.33 |
Baseline model included age, sex, prior hospital admission due to HF, HFrEF, log NT-proBNP, eGFRcys, and Charlson comorbidity index. HF, heart failure; HFrEF, heart failure with reduced ejection fraction; log NT-proBNP, logarithmic N-terminal pro B-type natriuretic peptide; eGFRcys, cystatine C-based estimated glomerular filtration rate; CI, confidence interval; cNRI, continuous net reclassification improvement; IDI, integrated discrimination improvement.