Table 5.

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

Groups or subgroups	N	References	Random-effects model		Fix-effects model		I2 (%)	PHeterogeneity
			SMD (95%CI)	PSMD	SMD (95%CI)	PSMD
Postprandial AG stratified by duration of postprandial period in normal-weight group
30 min	4	44,70,73,78	− 0.85 (− 1.48 to − 0.21)	0.009	− 0.86 (− 1.15 to − 0.56)	< 0.001	77.5	0.004
60 min	7	38,44,59,60,70,72,78	− 0.75 (− 1.11 to − 0.39)	< 0.001	− 0.72 (− 1.02 to − 0.41)	< 0.001	25.7	0.233
120 min	6	38,41,44,59,60,70	− 0.42 (− 0.82 to − 0.03)	0.034	− 0.42 (− 0.77 to − 0.06)	0.021	16.8	0.305
Postprandial AG stratified by duration of postprandial period in normal-weight group after excluding the studies with heterogeneity
30 min	3	70,73,78	− 1.19 (− 1.54 to − 0.84)	< 0.001	− 1.19 (− 1.54 to − 0.84)	< 0.001	0.0	0.371
60 min	7	38,44,59,60,70,72,78	− 0.75 (− 1.11 to − 0.39)	< 0.001	− 0.72 (− 1.02 to − 0.41)	< 0.001	25.7	0.233
120 min	6	38,41,44,59,60,70	− 0.42 (− 0.82 to − 0.03)	0.034	− 0.42 (− 0.77 to − 0.06)	0.021	16.8	0.305
Postprandial AG stratified by duration of postprandial period in obese group
30 min	4	44,70,73,78	− 0.61 (− 0.89 to − 0.34)	< 0.001	− 0.61 (− 0.89 to − 0.34)	< 0.001	0.0	0.762
60 min	7	38,44,59,60,70,72,78	− 0.62 (− 0.94 to − 0.30)	< 0.001	− 0.62 (− 0.91 to − 0.33)	< 0.001	15.9	0.390
120 min	6	38,41,44,59,60,70	− 0.31 (− 0.68 to 0.05)	0.092	− 0.28 (− 0.60 to 0.03)	0.074	24.0	0.254

AG acyl ghrelin.