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Table 3 Factors associated with utilities of EQ-5D in COPD patients

From: Quality of life and its association with direct medical costs for COPD in urban China

Variables Top 25% Low 75% cOR (95% CI) p value aOR (95% CI) * p value *
Age (years) - - 0.96 (0.95,0.98) <0.001 0.98 (0.96,0.99) 0.012
Gender       
Male 175 318 1.48 (1.02,2.14) 0.041 1.65 (1.06,2.58) 0.028
Female 50 134 1.00 - 1.00 -
Current severity       
Mild 72 67 12.04 (4.55,31.86) <0.001 14.76 (5.33,40.89) <0.001
Moderate 108 188 6.43 (2.50,16.55) <0.001 7.15 (2.69,18.97) <0.001
Severe 40 141 3.18 (1.19,8.46) 0.021 3.43 (1.25,9.38) 0.016
Very severe 5 56 1.00 - 1.00 -
Total 225 452 - - - -
  1. *Variables included in the logistic regression model: study site, average household income, having medical insurance(s), duration of COPD and presence of comorbidities.
  2. Abbreviations: aOR adjusted odds ratio, cOR crude odds ratio, CI confidence interval, COPD chronic obstructive pulmonary disease.