Table 1.

Baseline data from the included studies

	Year	Differential interventions in study groups	Durations of interventions	Number	Mean age	Mean baseline HbA1c	Mean baseline weight (kg)	Mean body-mass index (kg/m2)	Mean duration of diabetes
Kristina I. Rother	2009	Exenatide versus no exenatide	15 months	20	Not available	7.6%	Not available	25.9	21.3 years
Y. Hamamoto	2012	Liraglutide versus no liraglutide	12 months	10	48.5	Not available	Not available	22.8	Not available
K. V. S. Hari Kumar	2013	Exenatide versus no exenatide	12 months	18	27.7	9.7%	57.3	21.5	1.1 months
Gayathri Sarkar	2014	Exenatide versus no exenatide	12 months	14	37.3	7.0%	Not available	26.1	20.5 years
Thomas Fremming Dejgaard	2015	Liraglutide versus no liraglutide	24 weeks	50	47	8.7%	93.4	30.3	20 years
				50	49	8.7%	94	29.8	25 years
Nitesh D. Kuhadiya	2016	Liraglutide versus no liraglutide	12 weeks	16	42	7.84%	96	33	21 years
				17	50	7.69%	80	28	30 years
Christian S. Frandsen	2016	Liraglutide versus no liraglutide	12 weeks	18	39.5	8.8%	75.83	24.17	18.33 years
				18	36.1	8.7%	74.89	22.75	19.56 years