Table 7.

Subgroup analysis of triglyceride based on random effect analysis

Subgroup	Effect size (n)	WMD (95%CIs)	P-within	I2 (%)	Q-test
Overall	14	-14.602 (-28.992, -0.212)	0.047	76.0	< 0.001
BMI
Not detected	1	-	-	-	-
Normal	3	-28.628 (-43.694, -13.563)	< 0.001	0	0.492
Overweight	8	1.412 (-10.519, 13.344)	0.817	18.5	0.284
Obese	2	-15.81 (-30.689, -0.933)	0.037	0	0.571
Study quality
Medium	7	-17.349 (-35.685, 0.988)	0.064	64.2	0.010
High	7	-12.642 (-31.775, 6.492)	0.195	72.1	0.002
Exercise duration
Short	4	-6.632 (-19.500, 6.236)	0.312	0	0.520
Medium	3	13.188 (0.760, 25.615)	0.038	0	0.540
Long	7	-29.622 (-41.756, -17.488)	< 0.001	37.6	0.142
Exercise type
AE	11	-8.590 (-21.499, 4.319)	0.192	57.6	0.009
RE	1	-26.570 (-80.548, 27.408)	0.335	-	-
AE+RE	2	-43.067 (-54.255, -31.879)	< 0.001	0	< 0.001
Exercise frequency
1-2 times per week	3	-4.817 (-28.843, 19.208)	0.694	0	0.502
3-4 times per week	11	-16.391 (-32.838, 0.057)	0.051	80.7	< 0.001
Exercise volume
Low	6	-4.442 (-22.722, 13.838)	0.634	0	0.913
Moderate	5	-18.927 (-31.427, -6.427)	0.003	34.0	0.195
High	3	-17.461 (-63.812, 28.890)	0.460	95.5	< 0.001

AE: Aerobic exercise; RE: Resistance exercise; WMD: Weighted mean difference (mg/dl); LDL: Low-density lipoprotein cholesterol; BMI: Body mass index

I2: Percent variation in WMD attributable to heterogeneity/ Q-test: Test for heterogeneity with significance of < 0.10/ P-Within: Test of WMD of sub-groups by random-effect model with significance of < 0.05