: Data-Field 20154

Data-Field 20154

Description:	Forced expiratory volume in 1-second (FEV1), predicted percentage
Category:	Assessment centre ⏵ Physical measures ⏵ Spirometry
	Physical measures

Participants

274,805

Continuous, percent

Both sexes

Mar 2015

274,805

Data

Defined (1)

Jun 2021

Complete

Derived

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Data

274,805 items of data are available, covering 274,805 participants.
Defined-instances run from 0 to 0, labelled using Instancing 2.
Units of measurement are percent.

Maximum	235.36
Decile 9	116.542
Decile 8	109.924
Decile 7	105.263
Decile 6	101.281
Median	97.5082
Decile 4	93.6813
Decile 3	89.4677
Decile 2	84.1956
Decile 1	76.1981
Minimum	4.57532

Mean = 96.786
Std.dev = 16.5732
193 items above graph maximum of 156.885

Notes

This value was only calculated for samples with non-missing predicted Forced Expiratory Volume in 1-second, using derived variables Force Expiratory Volume in 1-second (FEV1) and predicted Forced Expiratory Volume in 1-second (pred.FEV1). It is defined as the Force Expiratory Volume in 1-second divided by the Percent predicted Forced Expiratory Volume in 1-second multiplied by 100:

FEV1 /pred.FEV1 * 100

This derived data field has come from Professor Martin Tobin at the University of Leicester.

2 Related Data-Fields

Field ID	Description	Relationship
3063	Forced expiratory volume in 1-second ...	Current Field is derived using Field 3063
20153	Forced expiratory volume in 1-second ...	Current Field is derived using Field 20153

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