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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Acad Radiol. 2014 Aug 1;21(10):1255–1261. doi: 10.1016/j.acra.2014.05.013

Table 1.

Baseline characteristics of the 73 selected subjects by gender

Variable Female
(n=28)		 Male
(n=45)		 P
Age, y 64.5 (59.0 – 67.0) 62.0 (59.0 – 67.0) 0.97
Pack years of smoking 43.5 (29.5 – 53.0) 44.0 (30.0 – 68.0) 0.66
BMI, kg/m2 24.3 (22.3 – 26.4) 28.6 (23.9 – 32.6) 0.0045
Fat free mass, kg 37.3 (34.1 – 41.8) 59.4 (54.4 – 67.4) <0.0001
Fat mass index, kg/m2 15.2 (14.1 – 16.3) 10.6 (10.1 – 12.4) <0.0001
FEV1 % predicted 45.6 (34 – 53.5) 43.5 (31.2 – 54.9) 0.84
Biomarkers
C-reactive protein, µg/ml 4.2 (1.3 – 4.8) 5.1 (1.4 – 6.6) 0.75
Fibrinogen, mg/dl 458.5 (425.0 – 507.0) 449 (386.0 – 485.0) 0.226
Interleukin-6, pg/ml 2.6 (0.5 – 2.3) 6.6 (0.9 – 3.2) 0.065

Continuous variables are presented as median (interquantile range) except for biomarkers (mean [interquantile rage]). Missing data, BMI 7; Fat mass index 7; C-reactive protein 3; Interleukin-6 7