Table 1 Characteristics of the study population.

From: Differences in lung attenuation gradients between supine and standing positions in healthy participants on conventional/supine and upright computed tomography

Variables

Overall (n = 100)

Mean ± SD or n

Range

Age, years

47.2 ± 11.2

30–79

Sex, Male/Female

33/67

 

Body weight, kg

57.9 ± 12.0

37.8–106.8

Height, centimetres

161.3 ± 9.0

141.4–187.5

BMI, kg/m2

22.2 ± 3.6

15.7–33.7

Pulmonary function test

  

VC (L)

3.63 ± 0.91

1.79–6.13

FVC (L)

3.57 ± 0.91

1.79–5.98

VC (% predicted)

105.4 ± 10.1

81.6–138.9

FEV1 (L)

2.87 ± 0.73

1.37–4.61

FEV1 (% predicted)

101.7 ± 12.1

71.1–133.5

FEV1/FVC (%)

80.6 ± 7.6

55.5–96.0

TV (L)

0.58 ± 0.17

0.29–1.06

RV (L)

1.52 ± 0.39

0.80–2.92

FRC (L)

2.92 ± 0.71

1.36–4.86

TLC (L)

5.15 ± 1.67

2.65–8.22

  1. SD: Standard Deviation, BMI: Body Mass Index, VC: Vital Capacity, FVC: Forced Vital Capacity, FEV: Forced Expiratory Volume in 1 s, TV: Tidal Volume, RV: Residual Volume, FRC: Functional Residual Capacity, TLC: Total Lung Capacity.
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