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Table 3 Descriptive analysis of the markers evaluated in lung function in individuals aged 5 to 18 years

From: Lung function in obese children and adolescents without respiratory disease: a systematic review

Variable

Association

 

+

No difference

Total

FVC

8

5

10

23

FEV1

4

6

13

23

FEV1/FVC

1

10

7

18

FEF25–75%

1

7

8

16

Peak expiratory flow measured by spirometry

2

4

3

9

Expiratory reserve volume

3

2

5

Functional residual capacity

3

3

Total lung capacity

3

3

Residual volume

3

3

Inspiratory capacity

2

2

  1. +, studies that showed comparative markers with greater value in obesity or positive associations with variables that are indicative of obesity; −, studies that showed comparative markers with lower value in obesity or with negative association with variables that are indicative of obesity; FVC, forced vital capacity; FEV1, forced expiratory volume in the first second of forced vital capacity; FEV1/FVC, forced expiratory volume in the first second and forced vital capacity ratio; FEF25–75%, forced expiratory flow between 25 and 75% of forced vital capacity