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. 2013 Oct 22;3(10):e003048. doi: 10.1136/bmjopen-2013-003048

Table 1.

Demographic and clinical characteristics

Not randomised Placebo FSC 250/50 µg SAL 50 µg Total
N 52 75 139 152 418
Age, year (mean (SD)) 63.8 (9.6) 62.8 (9.8) 60.2 (9.5) 60.1 (9.6) 61.1 (9.7)
Male, n (%) 25 (48) 46 (61) 79 (57) 89 (59) 239 (57)
White, n (%) 44 (85) 65 (87) 127 (91) 140 (92) 376 (90)
Current smoker, n (%) 29 (57) 46 (61) 84 (60) 99 (65) 258 (62)
Body mass index, mean (SD) 28.3 (6.9) 26.6 (6.1) 29.0 (7.3) 28.5 (6.2) 28.3 (6.7)
Postbronchodilator FEV1% predicted mean (SD) 50.3 (15.1) 49.4 (13.1) 49.5 (13.7) 50.2 (13.8) 49.9 (13.8)
FEV1/FVC % (mean (SD)) 55.7 (35.2) 51.6 (11.4) 53.7 (11.4) 52.2 (10.9) 53.0 (16.1)
Percentage of reversibility (mean (SD)) 8.6 (14.4) 16.7 (19.2) 14.5 (18.5) 11.7 (13.9) 13.1 (16.8)

The ‘not randomised’ column reflects those patients who completed the visit 1 and 2 assessments but were not eligible to be randomised. The ‘total’ column reflects the run-in population, defined as patients who completed visits 1 and 2, including those who were not randomised.

FEV1, forced expiratory volume in 1 s; FSC, fluticasone propionate/salmeterol combination; FVC, forced vital capacity; SAL, salmeterol.