Table 4

 Characteristics and muscle force in patients taking steroids and those not taking steroids

Taking steroidsNot taking steroidsDifferences between means (95% CI)p value
Values are expressed as mean (SD) and as differences between means (with 95% CI).
BMI, body mass index; FVC, forced vital capacity; FEV1, forced expiratory volume in 1 second; Tlco, carbon monoxide transfer factor; Pimax, maximal inspiratory pressure; QPT, quadriceps peak torque; 6MWD, distance walked in 6 minutes; Vo2, oxygen uptake.
BMI (kg/m2)26 (4)29 (6)3 (−2 to 7)0.29
FVC (% predicted)91 (17)111 (16)21 (6 to 36)0.008
FEV1/FVC (%)79 (3)74 (11)−6 (−13 to 2)0.13
Tlco (% predicted)75 (16)80 (14)6 (−7 to 19)0.36
Pimax (% predicted)76 (21)82 (21)6 (−13 to 24)0.52
QPT (% predicted)64 (24)69 (20)5 (−15 to 25)0.64
6MWD (m)608 (121)603 (146)−5 (−124 to 115)0.94
Peak Vo2 (ml/kg/min)25 (9)26 (10)1 (−8 to 9)0.88