Table 3.
Use of coronary angiography during hospitalization according to estimated CrC
| ≤45 ml/min (n = 152) | 45 to 60 ml/min (n = 198) | >60 ml/min (n = 728) | Differencea | |
|---|---|---|---|---|
| Coronary angiography, all patients (%) | 71 (47) | 108 (55) | 458 (63) | −16 (−31, −1)c |
| Coronary angiography, high-risk patientsb (%) | 34 (62) | 39 (71) | 131 (87) | −25 (−39, −11)c |
a
Reported differences are between subjects with a CrC ≤45 ml/min and the reference group (>60 ml/min) and are expressed in percent with a 95% CI.
b
There were 261 subjects considered at high risk (UA after a MI, heart failure, or hemodynamic instability): 55 with a CrC ≤45 ml/min, 55 in the 45- to 60-ml/min category, and 151 with a CrC >60 ml/min.
c
P ≤ 0.05 by χ2 for a difference between the three groups.