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. Author manuscript; available in PMC: 2010 Apr 2.
Published in final edited form as: Eur Respir J. 2009 Aug 13;35(1):118–123. doi: 10.1183/09031936.00188108

Table 1.

Baseline HRQL in the all-treated population, assessed by the SGRQ and SF-36 instruments, showing that patients in both groups were similarly impaired at baseline

Bosentan Placebo

SGRQ, median (95% CI)
 Symptoms components 51.2a (44.7, 56.0) 54.8b (47.9, 59.1)
 Activity components 59.5c (53.6, 66.1) 59.5d (56.0, 65.6)
 Impacts components 32.9c (25.0, 40.3) 30.5e (25.7, 38.4)
Total score 43.9f (36.6, 52.1) 44.3g (40.2, 50.0)

SF-36, median (95% CI)
 Physical functioning 55.0a (40.0, 65.0) 47.5b (35.0, 55.0)
 Role – physical 25.0c (25.0, 50.0) 25.0e (25.0, 50.0)
 Bodily pain 74.0a (64.0, 100.0) 64.0b (61.0, 74.0)
 Social functioning 75.0a (75.0, 87.5) 81.3b (62.5, 87.5)
 Mental health 80.0c (68.0, 84.0) 76.0b (68.0, 80.0)
 Role – emotional 100.0a (66.7, 100.0) 100.0e (66.7, 100.0)
 Vitality 50.0c (40.0, 55.0) 50.0b (40.0, 55.0)
 General health 47.0a (37.0, 57.0) 46.0b (40.0, 52.0)
a

n=68

b

n=82

c

n=67

d

n=83

e

n=81

f

n=66

g

n=80

95% CI, 95% confidence interval of the median; HRQL, health-related quality of life; SF-36, 36-item short-form instrument; SGRQ, St George's Respiratory Questionnaire.