Table 2

Summary statistics for Medicare Hospital Compare mortality and readmission measures for the performance period 1 July 2008 through 30 June 2011

(a)
Outcome measure
(b1)
Top-tier hospitals not significantly different from at least one mid-tier hospital, N (%)
(b2)
Mid-tier hospitals not significantly different from at least one top-tier hospital, N (%)
(b3)
Percentage of mid-tier hospitals not significantly different from a top-tier hospital, mean (10th–90th centile)
(c1)
Bottom-tier hospitals not significantly different from at least one mid-tier hospital, N (%)
(c2)
Mid-tier hospitals not significantly different from at least one bottom-tier hospital, N (%)
(c3)
Percentage of mid-tier hospitals not significantly different from a bottom-tier hospital, mean (10th–90th centile)
30-Day mortality rate for:
 Heart attack (N=2711)96 (100.0)2466 (94.8)79.2 (53.5–92.2)15 (100.0)2160 (83.1)67.6 (44.4–82.3)
 Heart failure (N=3944)244 (100.0)3312 (91.7)74.8 (51.6–88.7)89 (100.0)3175 (87.9)70.0 (53.4–81.0)
 Pneumonia (N=4236)247 (100.0)3526 (92.1)74.3 (54.5–85.8)160 (100.0)3269 (85.4)60.4 (31.8–79.0)
30-Day readmission rate for:
 Heart attack (N=2364)50 (100.0)2096 (92.2)81.1 (70.9–89.1)40 (100.0)2026 (89.1)74.8 (58.4–86.5)
 Heart failure (N=4024)132 (100.0)3414 (91.5)75.6 (61.2–75.6)162 (100.0)3388 (90.8)68.9 (44.7–86.0)
 Pneumonia (N=4250)55 (100.0)3658 (89.8)78.7 (65.9–78.7)121 (100.0)3650 (89.6)63.8 (35.3–83.0)