Table 2

Subgroup analysis on primary outcomes

SubgroupsHbA1cBMI
Included study
(n)
Sample size
(EX)
Sample size
(CON)
Mean difference
(95% CI)
P valueI2Included study
(n)
Sample size
(EX)
Sample size
(CON)
Mean difference
(95% CI)
P valueI2
Exercise frequency
(days/week)
<33321306−0.31 (−0.50 to 0.13)<0.0010%2310295−1.03 (−1.49 to −0.57)<0.00136%
≥3344550.03 (−0.45 to 0.51)0.900%457700.18 (−1.34 to 1.71)0.810%
  • EX, exercise group; CON, control group; I2, I-squared.