Table 5.
Outcomes, stratified by quartiles of risk-standardized hospital rates of inotrope use.
| Variable | Overall | Q1 Low Use Hospitals N=52 |
Q2 N=52 |
Q3 N=53 |
Q4 High Use Hospitals N=52 |
P value |
|---|---|---|---|---|---|---|
| In-hospital mortality, % patients by hospital, median (IQR) | ||||||
| Observed | 3.1 (1.6–4.3) | 2.4 (0.8–3.7) | 3.3 (1.7–4.2) | 3.3 (1.9–5.3) | 3.0 (1.7–4.3) | 0.12 |
| Adjusted | 3.1 (2.5–3.8) | 2.9 (2.3–3.5) | 3.2 (2.6–3.7) | 3.2 (2.6–4.1) | 3.5 (2.6–4.1) | 0.13 |
| Length of stay, > 4 days, % patients by hospital, median (IQR) | ||||||
| Observed | 43.3 (35.3–50.7) | 39.5 (33.9–48.7) | 41.8 (34.0–48.1) | 43.6 (33.7–48.3) | 46.5 (40.8–56.5) | 0.0040 |
| Adjusted | 45.4 (39.6–51.4) | 42.7 (38.1–47.6) | 42.4 (39.0–48.4) | 43.6 (39.9–51.8) | 49.9 (47.1–55.2) | <.0001 |
| Performance Measures, % of eligible | ||||||
| Discharged home, among patients eligible, % by hospital, median (IQR) | 89.6 (75.4–95.5) | 87.0 (67.0–95.4) | 90.0 (77.9–96.6) | 88.5 (73.0–95.3) | 91.0 (81.4–95.5) | 0.51 |
| Documentation of LVEF, % by hospital, median (IQR) | 97.7 (93.9–99.7) | 97.5 (93.2–99.6) | 97.6 (94.3–99.8) | 97.5 (92.7–99.5) | 98.6 (95.7–99.8) | 0.50 |
| Discharged on ACEI/ARB, among patients with LVSD and no contraindication, % by hospital, median (IQR) | 90.0 (77.7–95.0) | 89.3 (78.2–96.1) | 89.4 (76.9–94.3) | 89.4 (76.0–94.5) | 91.2 (80.9–95.3) | 0.86 |
| Discharged on beta-blocker, among patients with LVSD and no contraindication, % by hospital, median (IQR) | 94.5 (87.0–97.8) | 93.4 (85.6–97.9) | 94.7 (89.4–96.9) | 95.2 (88.0–98.0) | 94.0 (89.3–97.2) | 0.92 |
| Smoking cessation counseling, among patients with smoking history, % by hospital, median (IQR) | 97.3 (85.7–100) | 95.3 (80.3–100) | 96.6 (85.5–100) | 97.1 (83.3–100) | 99.0 (88.8–100) | 0.30 |
| Composite for 100% compliance, % by hospital, median (IQR) | 82.7 (64.9–90.8) | 78.5 (56.5–90.0) | 84.2 (64.1–89.8) | 79.6 (64.5–91.0) | 84.8 (67.6–91.5) | 0.59 |
Q=quartile; IQR=interquartile range; LVEF=left ventricular ejection fraction; ACEI=angiotensin converting enzyme inhibitor; ARB=angiotensin receptor blocker; LVSD=left ventricular systolic dysfunction.
All tests treat the column variable as ordinal.
Adding insurance status and race to the adjustment process made no significant change on any of the adjusted results.