Table 4.

Meta-analysis for comparison of postprandial AG levels stratified by duration of postprandial period (obesity vs. normal weight).

Groups or subgroups	N	References	Random-effects model		Fix-effects model
			SMD (95%CI)	PSMD	SMD (95%CI)	PSMD	I2 (%)	PHeterogeneity
Postprandial AG stratified by duration of postprandial period
30 min	4	44,70,73,78	− 0.60 (− 1.07 to − 0.13)	0.013	− 0.65 (− 0.93 to − 0.36)	< 0.001	62.0	0.048
60 min	7	38,44,59,60,70,72,78	− 0.57 (− 1.17 to 0.02)	0.026	− 0.57 (− 0.87 to − 0.27)	< 0.001	72.8	0.001
120 min	6	38,41,44,59,60,70	− 0.94 (− 1.59 to − 0.28)	0.005	− 1.01 (− 1.37 to − 0.65)	< 0.001	68.7	0.007
Postprandial AG stratified by duration of postprandial period after excluding the studies with heterogeneity
30 min	3	44,70,73	− 0.85 (− 1.18 to − 0.53)	< 0.001	− 0.85 (− 1.18 to − 0.53)	< 0.001	0.0	0.577
60 min	5	44,59,60,70,72	− 1.00 (− 1.37 to − 0.63)	< 0.001	− 1.00 (− 1.37 to − 0.63)	< 0.001	0.0	0.410
120 min	5	41,44,59,60,70	− 1.20 (− 1.71 to − 0.69)	< 0.001	− 1.21 (− 1.59 to − 0.83)	< 0.001	42.2	0.140

AG acyl ghrelin.