Table 3.

The subgroup analyses of HDL-C, LDL-C, TG, and TC levels

	N	SMD (95% CI) (mg/dl)	p	I2 (%)	Weight (%)
HDL-C
Total	20	− 0.053 (− 0.171, 0.066)	0.383	82.5	100.00
Sample size
> 500	5	0.089 (− 0.109, 0.286)	0.379	95.0	40.73
≤ 500	15	− 0.147 (− 0.296, 0.001)	0.052	47.1	59.27
Year
≥ 2008	9	− 0.119 (− 0.247, 0.010)	0.070	77.8	51.89
< 2008	11	0.036 (− 0.137, 0.210)	0.681	65.4	48.11
Country
Asia	10	− 0.024 (− 0.190, 0.142)	0.775	90.7	58.91
Not Asia	10	− 0.105 (− 0.242, 0.032)	0.134	20.9	41.09
LDL-C
Total	20	0.507 (0.373, 0.642)	< 0.001	86.4	100.00
Sample size
> 500	5	0.506 (0.332, 0.680)	< 0.001	93.3	38.29
≤ 500	15	0.553 (0.323, 0.783)	< 0.001	77.5	61.71
Year
≥ 2008	9	0.467 (0.304, 0.631)	< 0.001	86.6	51.27
< 2008	11	0.584 (0.353, 0.815)	< 0.001	80.6	48.73
Country
Asia	10	0.529 (0.373, 0.686)	< 0.001	88.9	57.36
Non-Asian country	10	0.490 (0.215, 0.766)	< 0.001	78.4	42.64
TG
Total	20	0.958 (0.587, 1.330)	< 0.001	98.5	100.00
Sample size
> 500	5	2.094 (1.261, 2.926)	< 0.001	99.7	26.47
≤ 500	15	0.529 (0.308, 0.749)	< 0.001	75.7	73.53
Year
≥ 2008	9	1.436 (0.727, 2.146)	< 0.001	99.4	45.64
< 2008	11	0.500 (0.291, 0.710)	< 0.001	76.2	54.36
Country
Asia	10	0.467 (0.190, 0.744)	< 0.001	99.3	49.29
Non-Asian country	10	1.416 (0.842, 1.991)	0.001	79.0	50.71
TC
Total	20	0.563 (0.415, 0.711)	< 0.001	89.2	100.00
Sample size
> 500	5	0.555 (0.331, 0.779)	< 0.001	96.0	36.09
≤ 500	15	0.592 (0.363, 0.822)	< 0.001	77.5	63.91
Year
≥ 2008	9	0.535 (0.352, 0.718)	< 0.001	89.5	50.32
< 2008	11	0.634 (0.374, 0.894)	< 0.001	85.2	49.68
Country
Asia	10	0.610 (0.427, 0.793)	< 0.001	92.1	56.08
Non-Asian country	10	0.511 (0.229, 0.793)	< 0.001	79.6	43.92

SMD, standardized mean difference; CI, confidential interval