Skip to main content

Table 4 Multivariable linear regression analysis of in-hospital length of stay after colorectal cancer surgery, Nationwide Inpatient Sample, 2007-2011

From: Race/ethnicity and socio-economic differences in colorectal cancer surgery outcomes: analysis of the nationwide inpatient sample

  In-Hospital
Length of stayab
(95 % CI)
P-value
Age 0.06 (0.05, 0.06) <.0001
Sex   <.0001
 Male Ref  
 Female −0.55 (−0.66,-0.45)  
Race/Ethnicity   <.0001
 White Ref  
 Black 1.33 (1.16, 1.50)  
 Hispanic 0.18 (−0.02, 0.39)  
 Other 0.09 (−0.12, 0.30)  
Residential Income <.0001
 Q4-Highest Ref  
 Q3 0.33 (0.18, 0.47)  
 Q2 0.37 (0.22, 0.52)  
 Q1-Lowest 0.84 (0.68, 1.00)  
Stage   <.0001
 Non-Metastatic Ref  
 Metastatic 1.76 (1.65, 1.87)  
Insurance Type   <.0001
 Private Ref  
 Medicare 0.66 (0.51, 0.81)  
 Medicaid 2.91 (2.66, 3.16)  
 Other 1.72 (1.47, 1.96)  
Residential Region <.0001
 Large metro Ref  
 Small metro −0.36 (−0.48,-0.24)  
 Micropolitan −0.71 (−0.88,-0.54)  
Comorbidities   <.0001
 0 Ref  
 1 1.52 (1.40, 1.65)  
 ≥ 2 3.01 (2.82, 3.21)  
  1. aLength of hospital stay was calculated by subtracting the admission date from the discharge date with same-day stays coded as 0
  2. bAdjusted for age, sex, diagnosis year, race, income, stage, insurance, residential region and comorbidities