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Table 1 Study population characteristics

From: Considerations in the use of different spirometers in epidemiological studies

Masterscreen vs EasyOne1 Overall (N = 49) Males (N = 15) Females(N = 34)
Age (years) – mean (SD) 30.2 (10.9) 29.2 (10.8) 30.8 (11.1)
Age ≤ 30 years – N (%) 32 (65) 12 (66) 29 (67)
Ethnicity-N (%)
 Caucasian 49 (100) 15 (100) 34 (100)
 Weight (Kg) – mean (SD) 68.9 (11.3) 72.6 (11.9) 66.9 (10.6)
 Height (m) – mean (SD) 1.74 (8.32) 1.81 (6.46) 1.70 (6.57)
 FEV1Masterscreen (L) – mean (SD) 3.78 (0.63) 4.38 (0.62) 3.51(0.43)
 FEV1EasyOne 1 – mean (SD) 3.54 (0.60) 4.11 (0.57) 3.29 (0.42)
 FVC Masterscreen (L) – mean (SD) 4.78 (0.85) 5.77 (0.76) 4.35 (0.42)
 FVCEasyOne1 (L) – mean (SD) 4.41 (0.83) 5.35 (0.74) 4.01 (0.44)
 FEV1Masterscreen mean (SD) percent predicted 98.3 (11.1) 93.6 (10.5) 100.4 (10.8)
 FEV1EasyOne1 mean (SD) percent predicted 92.3 (10.8) 87.9 (9.9) 94.2 (10.7)
 FVC Masterscreen mean (SD) percent predicted 103.7 (10.5) 101.2 (11.4) 104 (10.1)
 FVC EasyOne1 mean (SD) percent predicted 95.5 (10.5) 93.8 (12.2) 96.2 (9.87)
EasyOne1 vs EasyOne2 Overall (N = 49) Males (N = 17) Females (N = 32)
Age (years) - mean (SD) 35.1 (11.4) 32.8 (10.4) 37.4 (12.1)
Age ≤ 30 years – N (%) 23 (46) 11 (47) 12 (52)
Ethnicity- N (%)
 Caucasian 43 (88) 15 (88) 28 (88)
 Asian 4 (8) 2 (12) 2 (6)
 Other 2 (4) 0 (0) 2 (6)
 Weight (Kg) – mean (SD) 68.1 (10.1) 76.1 (9.3) 63.7 (7.7)
 Height (m) – mean (SD) 1.71 (0.11) 1.82 (0.72) 1.65 (0.86)
 FEV1EasyOne 1(L) – mean (SD) 3.50 (0.85) 4.33 (0.63) 3.05 (0.58)
 FEV1EasyOne 2 (L) – mean (SD) 3.46 (0.84) 4.27 (0.62) 3.03 (0.58)
 FVCEasyOne1(L) – mean (SD) 4.31 (1.05) 5.45 (0.64) 3.71 (0.65)
 FVCEasyOne2 (L) – mean (SD) 4.27 (1.04) 5.38 (0.65) 3.68 (0.66)
 FEV1 EasyOne1 mean (SD) percent predicted 95.8 (11.1) 92.8 (12.2) 97.4 (10.2)
 FEV1 EasyOne2 mean (SD) percent predicted 94.8 (11.2) 91.5 (12.1) 96.5 (10.5)
 FVCEasyOne1mean (SD) percent predicted 97.4 (9.9) 96.1 (11.1) 98.1 (9.3)
 FVCEasyOne2mean (SD) percent predicted 96.5 (10.2) 94.8 (11.1) 97.4 (9.7)