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Table 3 Ordinal least squares (OLS), Tobit regression and Logistic regression for EQ-5D-5L utility

From: Health-related quality of life among Chinese patients with Crohn’s disease: a cross-sectional survey using the EQ-5D-5L

Variables Univariate OLS Tobit Logistic regression
β SE P β SE P β SE P OR SE P
Gender             
Female − 0.067 0.018 0.000 − 0.027 0.015 0.258 − 0.029 0.016 0.219 1.109 0.536 0.923
Age group             
30–49 0.008 0.017 0.620          
 50 − 0.040 0.046 0.379          
CD location             
L2 − 0.110 0.024 0.000          
L3 − 0.045 0.017 0.008          
L4 0.118 0.112 0.293          
CDAI             
150–450 − 0.135 0.014 0.000 − 0.089 0.015 0.000 − 0.104 0.016 0.000 0.036 0.756 0.000
Duration of CD 0.003 0.002 0.298          
BMI 0.012 0.002 0.000 0.002 0.002 0.662 0.003 0.002 0.533 1.165 0.080 0.136
ESR − 0.002 0.000 0.000 0.000 0.000 0.810 0.000 0.001 0.837 0.957 0.021 0.119
CRP − 0.002 0.000 0.000 0.000 0.000 0.662 0.000 0.000 0.718 1.020 0.014 0.287
Medications             
5-Aminosalicylates − 0.036 0.020 0.070 − 0.009 0.016 0.766 − 0.006 0.017 0.869 1.055 0.574 0.925
Corticosteroids − 0.044 0.021 0.040 − 0.016 0.018 0.662 − 0.015 0.019 0.658 0.787 0.616 0.852
Immunomodulators − 0.020 0.020 0.323          
Biologics 0.089 0.017 0.000 0.011 0.018 0.766 0.020 0.020 0.633 2.906 0.759 0.287
Antibiotics − 0.113 0.015 0.000 − 0.053 0.017 0.011 − 0.056 0.018 0.011 0.198 0.581 0.032
Expenditure             
8000–16,000 − 0.045 0.021 0.031 0.004 0.018 0.848 − 0.001 0.020 0.977 1.662 0.723 0.056
16,000–24,000 − 0.078 0.021 0.000 − 0.009 0.020 0.782 − 0.009 0.022 0.908 0.598 0.714 0.707
> 24,000 − 0.149 0.021 0.000 − 0.055 0.022 0.055 − 0.058 0.023 0.056 0.753 0.765 0.852
AIC     − 357.32    − 254.65    147.37   
  1. Reference level: male, age < 30 years old, L1, CDAI ≤ 150, 5-Aminosalicylates (No), Corticosteroids (No), Immunomodulators (No), Biologics (No), Antibiotics (No), expenditure < RMB 8,000
  2. OLS ordinal least squares, AIC Akaike information criterion, CDAI Crohn’s Disease Active Index