Table 3 . Baseline characteristics of studies included in the meta-analysis.

Reference number	CMV infection (%)	NODAT (%)	Diagnostic criteria for NODAT
6	45 (26)	31 (17.2)	FBS≥7.7 mmol/l or 2-h pp≥11.1 mmol/l
7	61 (49.2)	20 (16.1)	According to an OGTT (39)
9	57 (32.2)	48 (27.1)	According to ADA (40)
13	5 (11.6)	9 (21)	According to ADA (40)
14	281 (56.9)	77 (15.6)	FBS≥7 mmol/l or 2-h glucose ≥11.1 mmol/l during an OGTT (41)
15	47 (15.2)	72 (23.4)	According to ADA (42)
16	10 (14.3)	10 (14.3)	HbA1c continuously ≥6.5 mg/dl, FBS≥126 or requiring hypoglycemic agent ≥3 months

CMV, cytomegalovirus; NODAT, new-onset diabetes mellitus, FBS; fasting blood sugar, OGTT; oral glucose tolerance test