Name

fev1

Label

Spirometry: forced expiratory volume (FEV), 1st second

Type
numeric
Visit vs Spirometry: forced expiratory volume (FEV), 1st second
N Mean StdDev Median Min Max Unknown Total
Visit 5 702 2.8 ± 0.9 2.7 0.4 6.1 33 735
Age at time of visit vs Spirometry: forced expiratory volume (FEV), 1st second
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 632 2.8 ± 0.9 2.7 0.4 6.1 26 658
5-14 yrs old 61 2.3 ± 0.7 2.1 1.0 4.9 3 64
15-24 yrs old 110 3.5 ± 0.8 3.4 1.7 6.1 2 112
25-34 yrs old 59 3.4 ± 0.9 3.4 1.6 5.9 3 62
35-44 years 93 3.0 ± 0.9 2.8 1.4 5.1 5 98
45-54 years 138 2.6 ± 0.8 2.6 1.1 4.7 10 148
55-64 years 83 2.4 ± 0.7 2.4 1.2 4.4 1 84
65-74 years 55 2.1 ± 0.8 2.0 0.8 4.3 2 57
75-84 years 31 1.8 ± 0.7 1.7 0.4 3.2 - 31
85 years or older 2 2.1 ± 0.1 2.1 2.0 2.2 - 2
Sex vs Spirometry: forced expiratory volume (FEV), 1st second
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 702 2.8 ± 0.9 2.7 0.4 6.1 33 735
Female 390 2.5 ± 0.7 2.5 0.4 4.6 16 406
Male 312 3.2 ± 1.0 3.1 0.7 6.1 17 329
Race vs Spirometry: forced expiratory volume (FEV), 1st second
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 702 2.8 ± 0.9 2.7 0.4 6.1 33 735
White 294 3.1 ± 1.0 3.1 0.4 6.1 10 304
Black 386 2.5 ± 0.8 2.5 0.8 4.9 23 409
Other 22 3.0 ± 1.0 3.0 1.5 5.4 - 22