OBJECTIVES: To determine functional status and mortality rates after colon cancer surgery in older nursing home residents. DESIGN: Retrospective cohort study. SETTING: Nursing homes in the United States. PARTICIPANTS: Six thousand eight hundred twenty-two nursing home residents aged 65 and older who underwent surgery for colon cancer in the United States between 1999 and 2005. MEASUREMENTS: Changes in functional status were assessed before and after surgery using the Minimum Data Set Activity of Daily Living (MDS-ADL) summary scale, a 28-point scale in which score increases as functional dependence increases. Regression techniques were used to identify patient characteristics associated with mortality and functional decline 1 year after surgery. RESULTS: On average, residents who underwent colectomy had a 3.9-point worsening in MDS-ADL score at 1 year. One year after surgery, rates of mortality and sustained functional decline were 53% and 24%, respectively. In multivariate analysis, older age (≥ 80 vs 65-69, adjusted relative risk (ARR) = 1.53, 95% confidence interval (CI) = 1.15-2.04, P < .001), readmission after surgical hospitalization (ARR = 1.15, 95% CI = 1.03-1.29, P = .02), surgical complications (ARR = 1.11, 95% CI = 1.02-1.21, P = .01), and functional decline before surgery (ARR = 1.21, 95% CI = 1.11-1.32, P < .001) were associated with functional decline at 1 year. CONCLUSION: Mortality and sustained functional decline are common after colon cancer surgery in nursing home residents. Initiatives aimed at improving surgical outcomes are needed in this vulnerable population.
OBJECTIVES: To determine functional status and mortality rates after colon cancer surgery in older nursing home residents. DESIGN: Retrospective cohort study. SETTING: Nursing homes in the United States. PARTICIPANTS: Six thousand eight hundred twenty-two nursing home residents aged 65 and older who underwent surgery for colon cancer in the United States between 1999 and 2005. MEASUREMENTS: Changes in functional status were assessed before and after surgery using the Minimum Data Set Activity of Daily Living (MDS-ADL) summary scale, a 28-point scale in which score increases as functional dependence increases. Regression techniques were used to identify patient characteristics associated with mortality and functional decline 1 year after surgery. RESULTS: On average, residents who underwent colectomy had a 3.9-point worsening in MDS-ADL score at 1 year. One year after surgery, rates of mortality and sustained functional decline were 53% and 24%, respectively. In multivariate analysis, older age (≥ 80 vs 65-69, adjusted relative risk (ARR) = 1.53, 95% confidence interval (CI) = 1.15-2.04, P < .001), readmission after surgical hospitalization (ARR = 1.15, 95% CI = 1.03-1.29, P = .02), surgical complications (ARR = 1.11, 95% CI = 1.02-1.21, P = .01), and functional decline before surgery (ARR = 1.21, 95% CI = 1.11-1.32, P < .001) were associated with functional decline at 1 year. CONCLUSION: Mortality and sustained functional decline are common after colon cancer surgery in nursing home residents. Initiatives aimed at improving surgical outcomes are needed in this vulnerable population.
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