Name

fef50

Label

Spirometry: forced expiratory flow at 50

Type
numeric
Visit vs Spirometry: forced expiratory flow at 50
N Mean StdDev Median Min Max Unknown Total
Visit 5 690 3.5 ± 1.5 3.4 0.2 9.0 45 735
Age at time of visit vs Spirometry: forced expiratory flow at 50
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 620 3.5 ± 1.5 3.4 0.2 9.0 38 658
5-14 yrs old 58 2.8 ± 1.2 2.6 1.1 8.0 6 64
15-24 yrs old 108 4.2 ± 1.3 4.2 1.1 7.7 4 112
25-34 yrs old 58 4.2 ± 1.5 4.2 1.3 8.6 4 62
35-44 years 90 3.8 ± 1.5 3.8 1.0 8.8 8 98
45-54 years 137 3.5 ± 1.3 3.5 0.8 7.1 11 148
55-64 years 83 3.2 ± 1.5 3.0 0.8 9.0 1 84
65-74 years 54 2.5 ± 1.2 2.6 0.3 6.2 3 57
75-84 years 30 2.1 ± 1.1 1.9 0.2 4.3 1 31
85 years or older 2 2.1 ± 0.2 2.1 2.0 2.2 - 2
Sex vs Spirometry: forced expiratory flow at 50
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 690 3.5 ± 1.5 3.4 0.2 9.0 45 735
Female 380 3.2 ± 1.2 3.2 0.2 6.5 26 406
Male 310 3.8 ± 1.6 3.8 0.3 9.0 19 329
Race vs Spirometry: forced expiratory flow at 50
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 690 3.5 ± 1.5 3.4 0.2 9.0 45 735
White 293 3.8 ± 1.5 3.7 0.2 9.0 11 304
Black 375 3.2 ± 1.4 3.1 0.3 8.6 34 409
Other 22 3.6 ± 1.1 3.3 1.8 5.7 - 22