Effects of Physical Exercises on Pulmonary Rehabilitation, Exercise Capacity, and Quality of Life in Children with Asthma: A Meta-Analysis

Table 2

Subgroup analysis results.

Subgroup (intervention time)	Studies	Heterogeneity test results		Effect model	Meta-analysis results
			I^2 (%)		MD/SMD (95% CI)	value
FVC% pred
≥8 w	10	0.01	56	Fixed	2.62(1.19, 4.04)	0.0003
<8 w	5	0.21	32	Fixed	0.20(−0.12, 0.53)	0.22
FEV1% pred
≥8 w	11	0.02	52	Fixed	1.09(−0.38, 2.56)	0.15
<8 w	7	0.92	0	Fixed	0.10(−0.15, 0.36)	0.42
FEV25–75% pred
≥8 w	2	0.45	0	Fixed	11.72(2.44, 20.99)	0.01
<8 w	4	0.009	74	Random	3.02(−7.62, 13.67)	0.58
PEF% pred
≥8 w	8	<0.0001	80	Random	4.94(1.07, 8.82)	0.01
<8 w	3	0.77	0	Fixed	3.18(−1.91, 8.28)	0.22

FVC% pred: pulmonary function indices include forced vital capacity to predicted value ratio; FEV1% pred: forced expiratory volume at 1 s to predicted value ratio; FEF25–75% pred: forced expiratory flow between 25% and 75% of vital capacity ratio; PEF% pred: peak expiratory flow to predicted value ratio; SMD: standardized mean difference; MD: mean difference.