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Table 2.4
Percent of surgical discharges with postoperative venous thromboembolic events, United States, 2004 and 2005a
Population group 2005 2004
Exposed Adverse events Percent Standard error Exposed Adverse events Percent Standard error
Total   5,994 62 1.03 0.13 5,752 65 1.13 0.14
Age Under 65 DSU DSU DSU DSU DSU DSU DSU DSU
65-74 2,452 19 0.77 0.18 2,312 17 0.74 0.18
75-84 2,031 25 1.23 0.24 2,004 34 1.70 0.29
85 and over DSU DSU DSU DSU DSU DSU DSU DSU
Gender Male 2,641 28 1.06 0.20 2,554 35 1.37 0.23
Female 3,353 34 1.01 0.17 3,198 30 0.94 0.17
Race White 5,236 55 1.05 0.14 5,087 56 1.10 0.15
Black DSU DSU DSU DSU DSU DSU DSU DSU
Other DSU DSU DSU DSU DSU DSU DSU DSU
Diabetes Yes 1,678 21 1.25 0.27 1,541 18 1.17 0.27
No 4,316 41 0.95 0.15 4,211 47 1.12 0.16
Obesity Yes DSU DSU DSU DSU DSU DSU DSU DSU
No 5,270 58 1.10 0.14 5,064 56 1.11 0.15
Cerebrovascular disease Yes DSU DSU DSU DSU 1,027 13 1.27 0.35
No 4,929 53 1.08 0.15 4,725 52 1.10 0.15
CHF/pulmonary edema Yes 945 15 1.59 0.41 956 17 1.78 0.43
No 5,049 47 0.93 0.14 4,796 48 1.00 0.14
COPD Yes 1,342 17 1.27 0.31 1,306 20 1.53 0.34
No 4,652 45 0.97 0.14 4,446 45 1.01 0.15
Smoking Yes 845 12 1.42 0.41 DSU DSU DSU DSU
No 5,149 50 0.97 0.14 4,902 56 1.14 0.15
Cancer Yes DNA DNA DNA DNA 1,623 24 1.48 0.30
No DNA DNA DNA DNA 4,129 41 0.99 0.15
Corticosteroids Yes DSU DSU DSU DSU DSU DSU DSU DSU
No 5,704 57 1.00 0.13 5,494 60 1.09 0.14
Coronary artery disease Yes 2,146 21 0.98 0.21 2,133 35 1.64 0.28
No 3,848 41 1.07 0.17 3,619 30 0.83 0.15
Renal disease Yes 1,105 18 1.63 0.38 947 20 2.11 0.47
No 4,889 44 0.90 0.14 4,805 45 0.94 0.14

a Data include Medicare beneficiaries discharged from January to December. Venous thromboembolic events include 30-day postoperative readmissions for pneumonia and venous thromboembolic events. Readmissions were not counted for the 2004 data because the data were not available at that time.

DNA - Data have not been analyzed.

DSU - Data do not meet the criteria for statistical reliability, data quality, or confidentiality.

Key: CHF: congestive heart failure; COPD: chronic obstructive pulmonary disease.

Source: Centers for Medicare & Medicaid Services, Medicare Patient Safety Monitoring System.

 
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