Table 3.

Comparison of the incidence of IFG/IGT and DM ($\overline{x}\pm \text{s}$, mmol/L).

	IFG/IGT	DM
Normal group (n = 591)	31	22
Obese group (n = 130)	19	17
χ 2	14.50	18.22
P	<0.001	<0.001