Race

Visit vs Spirometry: Forced expiratory flow (FEF) 25-75% range
N Mean StdDev Median Min Max Unknown Total
Visit 5 689 2.8 ± 1.2 2.7 0.2 7.5 46 735
Participant's age (category) vs Spirometry: Forced expiratory flow (FEF) 25-75% range
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 619 2.8 ± 1.3 2.6 0.2 7.5 39 658
5-14 yrs old 58 2.4 ± 1.1 2.1 0.9 7.3 6 64
15-24 yrs old 107 3.6 ± 1.1 3.5 1.1 7.1 5 112
25-34 yrs old 58 3.6 ± 1.3 3.4 1.0 7.5 4 62
35-44 years 90 3.1 ± 1.2 3.0 0.8 7.2 8 98
45-54 years 137 2.7 ± 1.1 2.6 0.6 5.9 11 148
55-64 years 83 2.3 ± 1.1 2.2 0.6 5.9 1 84
65-74 years 54 1.8 ± 0.8 1.8 0.3 3.7 3 57
75-84 years 30 1.3 ± 0.6 1.2 0.2 2.6 1 31
85 years or older 2 1.5 ± 0.007 1.5 1.5 1.5 - 2
Participant's sex vs Spirometry: Forced expiratory flow (FEF) 25-75% range
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 689 2.8 ± 1.2 2.7 0.2 7.5 46 735
Female 379 2.5 ± 1.0 2.5 0.2 5.8 27 406
Male 310 3.1 ± 1.4 3.0 0.3 7.5 19 329
Participant's race vs Spirometry: Forced expiratory flow (FEF) 25-75% range
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 689 2.8 ± 1.2 2.7 0.2 7.5 46 735
White 293 3.0 ± 1.3 3.0 0.2 7.5 11 304
Black 374 2.6 ± 1.2 2.4 0.3 7.4 35 409
More than one race 22 3.1 ± 1.1 2.8 1.2 4.8 - 22