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Table 1 Patient characteristics by disease stage for first admissions

From: Health-related quality of life in patients with severe COPD hospitalized for exacerbations - comparing EQ-5D, SF-12 and SGRQ

Characteristics Stage III
(n = 34)
Stage IV
(n = 83)
p-value
age (mean (sd)) 67 (8) 68 (8) 0.77*
male (%) 59 66 0.53
current smoker (%) 18 14 0.78
> 1 admission (%) 6 10 0.44
length of stay [days] (mean (sd)) 10 (6) 15 (8) <0.001*
  1. * t test;
  2. χ2 test.