Circulating glycated albumin levels and gestational diabetes mellitus

Table 1 Characteristics of available studies relating glycated albumin levels to gestational diabetes mellitus risk

No.	Country	Study design	GDM case	Control patients	NOS	Ref.
1	Brazil	Cross-sectional study	28	121	7	Chume et al[16], 2021
2	China	Prospectively	639	1479	8	Li et al[18], 2016
3	China	Prospectively	232	466	7	Zhu et al[19], 2018
4	Turkey	Cross-sectional case-control	40	40	7	Saglam et al[17], 2017
5	China	Cross-sectional	243	470	8	Pan et al[22], 2013
6	Japan	Retrospectively studied	25	17	8	Sugawara et al[23], 2016
7	China	Cross-sectional	376	743	8	Li et al[21], 2021
8	Japan	Retrospective	40	31	7	Sugawara et al[25], 2018
9	China	Prospective	225	125	8	Zhang et al[26], 2021
10	Italy	Multicenter study	22	32	7	Paroni et al[24], 2007
11	Italy	Cohort	30	53	7	Piuri et al[20], 2020

GDM: Gestational diabetes mellitus; NOS: Newcastle-Ottawa Scale.