Patient demographics in low-, intermediate-, and high-risk groups
| CHARACTERISTICS | LOW RISK | INTERMEDIATE RISK | HIGH RISK | OVERALL |
|---|---|---|---|---|
| N (%) | 31 (7) | 86 (21) | 298 (72) | 415 (100) |
| No. of men (%) | 19 (9) | 46 (21) | 149 (70) | 214 (100) |
| No. of women (%) | 12 (6) | 40 (20) | 149 (74) | 201 (100) |
| Mean (SD) age, y | 62 (9)* | 73 (9)* | 81 (7)* | 78 (9) |
| Mean (SD) no. of medications | 6.0 (3.5)* | 7.9 (3.9)* | 9.6 (3.7)* | 9.0 (3.9) |
| Mean (SD) no. of comorbid conditions | 4.0 (2.0)* | 5.4 (2.2)* | 6.5 (2.3)* | 6.1 (2.4) |
↵* ANOVA with Tukey post-hoc test P < .05 compared with all other risk groups.