Characteristics | Before matching | |
---|---|---|
Overall cohort (n = 61,031) | Column percentage | |
Malnutrition | 3103 | 5% |
Male | 28,047 | 46% |
Age group | ||
 < 30 | 1142 | 2% |
 30–39 | 2783 | 5% |
 40–49 | 6734 | 11% |
 50–59 | 14,042 | 23% |
 60–69 | 16,507 | 27% |
 70–79 | 13,248 | 22% |
 ≥80 | 6575 | 11% |
VW score category | ||
 < − 5 | 897 | 1% |
 − 5 to − 1 | 7563 | 12% |
 − 1 to 1 | 29,018 | 48% |
 1 to 5 | 9133 | 15% |
 > 5 | 14,420 | 24% |
Comorbidities | ||
 Cancer | 12,333 | 20% |
 Renal failure | 2444 | 4% |
 Chronic pulmonary disease | 8440 | 14% |
Payor category | ||
 Managed care organization | 21,682 | 36% |
 Medicaid | 2353 | 4% |
 Medicare | 29,018 | 48% |
 Others | 7978 | 13% |
Race | ||
 Black | 4953 | 8% |
 Hispanic | 1030 | 2% |
 Others | 9808 | 16% |
 White | 45,240 | 74% |
Open colorectal surgery | 36,371 | 60% |
Hospital bed size | ||
 < 200 | 5446 | 9% |
 200–499 | 32,410 | 53% |
 ≥ 500 | 23,175 | 38% |
Teaching hospital | 26,037 | 43% |
Rural hospital | 5644 | 9% |
Vasopressor | 17,381 | 28% |