TABLE 3.
Association Between Comorbidity and Hospitalization During Follow-Up (OR) and Time to Hospitalization in a Cox Proportional Hazards Model (HR)a
| Comorbidity Instrument | Not Hospitalized | Hospitalized | Adjusted ORb | 95% CI | P |
|---|---|---|---|---|---|
| TIBI-CaP | |||||
| 0–8 | 76 | 12 | |||
| 9–19 | 3 | 7 | 11.3 | 2.4–53.6 | .002 |
| Charlson Comorbidity Index | |||||
| 0–2 | 77 | 14 | |||
| 3–12 | 5 | 7 | 5.7 | 1.4–22.4 | .013 |
| Adjusted HRb | 95% CI | P | |
|---|---|---|---|
| TIBI-CaP (0–8 vs 9–19) | 3.8 | 1.3–11.2 | .017 |
| Charlson Comorbidity Index (0–2 vs 3–12) | 3.2 | 1.1–9.1 | .033 |
95% CI, 95% confidence interval; HR, hazards ratio; OR, odds ratio; TIBI-CaP, Total Illness Burden Index for Prostate Cancer.
Hospital admission (yes/no) is shown with regard to the range of comorbidities counted by 2 variations in comorbidity tools: the TIBI-CaP and the Charlson Comorbidity Index. Patients at high risk for hospital admission were compared with those who were at low risk for hospital admission, which included TIBI-CaP (high risk >8) and the Charlson Comorbidity Index (≥3). Each score was compared using the ORs (percentage) and HRs (time to event) with the P values listed.
HRs were adjusted for age and body mass index.