TABLE 3.
Adjusted odds ratios* for 30-day readmission and one-year mortality after colectomy for cancer. Abbreviations: OR, odds ratio; CI, confidence interval; HCC, Hierarchical Condition Categories; SNF, skilled nursing facility. Statistically significant associations (p<0.05) are highlighted.
| Characteristic | OR for Readmission (95% CI) | OR for Mortality (95% CI) |
|---|---|---|
| Patient-related | ||
| Age | ||
| 66–70 | 1 | 1 |
| 71–75 | 0.94 (0.85—1.05) | 1.29 (1.13—1.47) |
| 76–80 | 1.00 (0.90—1.11) | 1.47 (1.29—1.67) |
| 81–85 | 1.04 (0.93—1.16) | 2.06 (1.81—2.35) |
| 86+ | 1.08 (0.96—1.21) | 2.70 (2.36—3.08) |
| Gender | ||
| Female | 1 | 1 |
| Male | 1.20 (1.12—1.29) | 1.21 (1.12—1.30) |
| Race/ethnicity | ||
| White | 1 | 1 |
| Black | 1.08 (0.94—1.23) | 1.05 (0.91—1.21) |
| Asian or Pacific Islander | 1.26 (1.06—1.50) | 0.65 (0.52—0.81) |
| Hispanic | 1.13 (0.94—1.36) | 0.85 (0.70—1.04) |
| Other | 1.08 (0.64—1.82) | 0.48 (0.24—0.98) |
| Marital status | ||
| Married | 1 | 1 |
| Widowed | 1.01 (0.93—1.09) | 1.05 (0.97—1.14) |
| Single, Separated, or Divorced | 1.00 (0.90—1.11) | 1.12 (1.00—1.24) |
| Unknown | 1.01 (0.85—1.21) | 1.08 (0.90—1.30) |
| SEER Registry | ||
| California | 1 | 1 |
| Connecticut | 1.06 (0.93—1.21) | 1.02 (0.89—1.17) |
| Detroit | 1.20 (1.07—1.36) | 1.05 (0.93—1.19) |
| Hawaii | 0.93 (0.71—1.23) | 0.85 (0.60—1.20) |
| Iowa | 1.17 (1.01—1.35) | 1.03 (0.88—1.20) |
| New Mexico | 1.00 (0.80—1.26) | 1.24 (0.99—1.56) |
| Seattle | 1.10 (0.96—1.26) | 1.19 (1.04—1.37) |
| Utah | 1.11 (0.90—1.37) | 1.19 (0.97—1.47) |
| Atlanta & Rural Georgia | 1.14 (0.96—1.34) | 1.16 (0.98—1.37) |
| Kentucky | 1.27 (1.05—1.54) | 1.43 (1.17—1.75) |
| Louisiana | 1.32 (1.08—1.60) | 0.99 (0.80—1.23) |
| New Jersey | 1.11 (0.96—1.29) | 0.80 (0.68—0.93) |
| Residence location | ||
| Major metropolitan | 1 | 1 |
| Metropolitan or urban | 0.99 (0.89—1.09) | 0.99 (0.90—1.10) |
| Less urban or rural | 0.99 (0.85—1.14) | 0.98 (0.84—1.14) |
| Hospitalized in the year before surgery | ||
| No | 1 | 1 |
| Yes | 1.26 (1.18—1.36) | 1.16 (1.08—1.25) |
| HCC score | 1.14 (1.11—1.17) | 1.27 (1.24—1.30) |
| Disease-related | ||
| Cancer stage | ||
| I | 1 | 1 |
| II | 0.99 (0.91—1.08) | 1.23 (1.11—1.35) |
| III | 0.97 (0.88—1.06) | 2.50 (2.26—2.76) |
| Tumor grade | ||
| Well-differentiated | 1.07 (0.96—1.19) | 1.03 (0.91—1.17) |
| Moderately-differentiated | 1 | 1 |
| Poorly or undifferentiated | 1.10 (1.02—1.19) | 1.71 (1.59—1.84) |
| Unknown | 0.91 (0.77—1.08) | 1.14 (0.95—1.36) |
| Emergent admission | ||
| No | 1 | 1 |
| Yes | 1.14 (1.05—1.24) | 1.17 (1.08—1.27)b |
| Intestinal obstruction on admission | ||
| No | 1 | 1 |
| Yes | 0.91 (0.77—1.06) | 1.37 (1.19—1.57) |
| Intestinal perforation on admission | ||
| No | 1 | 1 |
| Yes | 0.93 (0.75—1.15) | 1.47 (1.22—1.78) |
| Treatment-related | ||
| Year of surgery | ||
| 1992–1995 | 1 | 1 |
| 1996–1999 | 1.08 (1.00—1.18) | 0.93 (0.86—1.02) |
| 2000–2002 | 1.13 (1.02—1.24) | 0.97 (0.87—1.07) |
| Hospital procedure volume | ||
| 1st tertile (lowest volume) | 1 | 1 |
| 2nd tertile | 0.88 (0.81—0.95) | 0.92 (0.85—0.99) |
| 3rd tertile | 0.85 (0.78—0.92) | 0.80 (0.74—0.88) |
| Surgeon procedure volume | ||
| 1st tertile (lowest volume) | 1 | 1 |
| 2nd tertile | 1.02 (0.95—1.10) | 0.95 (0.88—1.03) |
| 3rd tertile | 1.05 (0.97—1.14) | 1.06 (0.97—1.15) |
| Laparoscopic surgery | ||
| No | 1 | 1 |
| Yes | 1.16 (0.79—1.71) | 0.66 (0.38—1.15) |
| Length of hospital stay | ||
| Less than 6 days | 0.96 (0.82—1.12) | 0.82 (0.67—1.00) |
| 6–14 days | 1 | 1 |
| More than 14 days | 1.33 (1.23—1.45) | 1.70 (1.57—1.84) |
| Received blood transfusion | ||
| No | 1 | 1 |
| Yes | 1.14 (1.06—1.24) | 1.21 (1.11—1.31) |
| Stoma | ||
| No | 1 | 1 |
| Yes | 1.13 (1.01—1.25) | 1.30 (1.17—1.44) |
| In-hospital complication | ||
| No | 1 | 1 |
| Yes | 1.42 (1.23—1.65) | 1.05 (0.90—1.23) |
| Discharge destination | ||
| Home | 1 | 1 |
| SNF | 1.34 (1.23—1.46) | 2.20 (2.03—2.38) |
| Other facility | 1.18 (0.95—1.45) | 2.38 (1.97—2.87) |
| Chemotherapy w/in 30d of discharge | ||
| No | 1 | 1 |
| Yes | 0.99 (0.86—1.13) | 1.01 (0.88—1.16) |
| Readmitted within 30 days of discharge | ||
| No | 1 | |
| Yes | 2.44 (2.25—2.65) | |
Odds ratios are adjusted for age, gender, race/ethnicity, marital status, census tract median household income and percent of non-high school graduates, SEER registry, rural/urban residence location, hospitalization in the year before surgery, Hierarchical Condition Categories (HCC) comorbidity score, tumor stage and grade, emergent admission, obstruction, perforation, year of surgery, hospital and surgeon procedure volume, laparoscopic vs. open resection, length of stay, blood transfusion, ostomy, in-hospital complication, discharge destination, and receipt of chemotherapy.