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Table 1 Physical and Clinical Characteristics of patients with COPD and Controls

From: Daily physical activity and related risk factors in COPD

 

COPD (n = 88)

Comparator (n = 40)

p

Gender Male: female

46:42

19:21

0.117

Age (years)

66 (8)

66 (7)

0.923

Smoking (pack years)

42.2 (24.8)

22.9 (20.8)

0.001

FEV1 (L)

1.5 (0.8)

2.6 (0.6)

0.001

FVC (L)

2.4 (0.9)

3.4 (0.9)

0.001

FEV1/FVC

0.52 (0.1)

0.78 (0.05)

0.001

FEV1 (%)

56 (17)

106 (17)

0.001

FVC (%)

84 (19)

112 (17)

0.001

Resting O2 saturation (%)

96 (2)

98 (1)

0.001

BMI (kg/m2)

27.5 (5.2)

28.6 (4.9)

0.297

Waist:Hip ratio

0.95 (0.09)

0.89 (0.06)

0.002

FFM (kg)

49.5 (10.5)

50.9 (9.1)

0.486

FM (kg)

24.8 (9.9)

27.2 (10.3)

0.243

FFM/FM

2.3 (1.1)

2.2 (1.1)

0.556

FFMI (kg/m2)

18.2 (2.4)

18.5 (2.1)

0.589

FMI (kg/m2)

9.3 (3.9)

10.1 (4.3)

0.3

6MWD (m)

336 (107)

515 (88)

0.001

Mean handgrip (kg)

27.2 (9.6)

29.7 (10.2)

0.209

Fibrinogen (g/l) #

3.8 (1.3)

3.2 (0.6)

0.012

HsCRP (mg/l)#

3.3 (3.1)

1.6 (3.2)

0.023

No. Steps

4095 (2720)

6734 (3491)

0.001

Time spent on moderate activity (hr)*

1.3 (0.5–2.2)

1.3 (0.7–2.1)

0.662

No. Comorbidity

1.3 (1.2)

0.8 (0.8)

0.027

  1. All data mean (SD) unless otherwise indicated *Median (range) # Geometric mean. Abbreviations: 6MWD six minute walk distance, BMI body mass index, FEV1 forced expiratory volume in 1 s, FVC forced vital capacity, FFM fat free mass, FFMI fat free mass index, FM fat mass, FMI fat mass index, HsCRP high sensitivity C- reactive protein.