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. Author manuscript; available in PMC: 2015 Oct 23.
Published in final edited form as: Ann Intern Med. 2009 May 19;150(10):696–704. doi: 10.7326/0003-4819-150-10-200905190-00007

Table 5.

Quality measures and care outcomes (n = 81289 patients)

30-day mortality (1825 deaths) Read mission (8653 readmissions)
Value Unadjusted Odds
Ratio (95% CI)
Adjusted* odds ratio
- Adjusted for
confounders only
(95% CI)
Adjusted* Odds
Ratio - Adjusted for
volume measures
and confounders
(95% CI)
Unadjusted Odds
Ratio (95% CI)
Adjusted** odds -
Adjusted for
confounders only
(95% CI)
Adjusted** Odds
Ratio - Adjusted for
volume measures
and confounders
(95% CI)
Individual measures
No aspirin 1.17 (1.06, 1.29) 1.90 (1.66, 2.16) 1.89 (1.65, 2.16) 0.91 (0.87, 0.95) 1.01 (0.94, 1.08) 1.00 (0.94, 1.06)
No beta-blocker 0.82 (0.72, 0.93) 1.29 (1.12, 1.48) 1.29 (1.12, 1.49) 0.83 (0.78, 0.88) 0.95 (0.89, 1.01) 0.96 (0.90, 1.02)
No statin 1.23 (1.12, 1.35) 1.07 (0.95, 1.20) 1.07 (0.95, 1.21) 0.95 (0.91, 0.99) 0.97 (0.91, 1.04) 0.96 (0.91, 1.02)
No prophylactic
antibiotics
1.12 (0.94, 1.35) 1.25 (0.77, 2.00) 1.25 (0.79, 2.00) 0.82 (0.74, 0.91) 0.87 (0.76, 1.00) 0.90 (0.80, 1.01)
Inappropriate antibiotics 2.05 (1.86, 2.25) 0.66 (0.58, 0.74) 0.66 (0.58, 0.75) 1.26 (1.20, 1.32) 1.10 (1.05, 1.15) 1.12 (1.08, 1.17)
No serial compression
device
1.22 (1.09, 1.37) 1.00 (0.82, 1.22) 1.00 (0.83, 1.22) 1.01 (0.95, 1.06) 0.99 (0.90, 1.09) 1.01 (0.93, 1.09)
Number of measures
missed*
0 missed Referent Referent Referent Referent Referent Referent
1 missed 1.68 (1.35, 2.10) 1.05 (0.79, 1.37) 1.05 (0.80, 1.38) 1.10 (1.01, 1.20) 1.00 (0.92, 1.10) 1.01 (0.92, 1.10)
2 missed 1.58 (1.28, 1.95) 1.15 (0.87, 1.53) 1.15 (0.87, 1.53) 1.09 (1.01, 1.18) 0.99 (0.91, 1.08) 1.00 (0.92, 1.09)
3 missed 2.43 (1.99, 2.98) 1.54 (1.20, 1.98) 1.54 (1.20, 1.98) 1.08 (0.99, 1.17) 0.99 (0.90, 1.10) 1.00 (0.91, 1.10)
4 or more 2.37 (1.92, 2.92) 1.62 (1.23, 2.14) 1.63 (1.24, 2.15) 1.03 (0.95, 1.13) 0.98 (0.88, 1.10) 1.02 (0.93, 1.13)

CI – Confidence interval.

*

Number of measures missed: 9378 patients (12%) had no missed measures, 14884 (18%) had one missed, 20534 (25%) had 2 missed, 21232 (26%) had 3 missed, and 15261 (18%) had 4 or more missed.

**

Confounders included in mortality models: age, gender, diagnosis-related group predicted mortality, congestive heart failure, hypertension, neurological disorders, diabetes with complications, renal failure, coagulopathy, deficiency anemia, and whether or not an internal mammary graft was used during the procedure.

Confounders included in readmission models: age, gender, race, insurance type, admission status , diagnosis-related group predicted mortality, chronic obstructive lung disease, peripheral vascular disease, diabetes, diabetes with complications, renal failure, electrolyte disorders, deficiency anemia, psychoses, depression, and geographic region.