Table 2.

Association of glucose levels and perceived age

	Strata of glucose levels in non-diabetic subjects				Diabetic subjects
	Low (N = 191)	Medium (N = 192)	High (N = 186)	P atrend	(N = 33)	P btrend
Perceived age (years)c	58.0 (56.9–59.1)	59.8 (58.7–60.9)	60.8 (59.6–61.9)	0.001	60.2 (57.5–62.8)	0.001
Perceived age (years)d	59.7 (59.2–60.3)	60.2 (59.6–60.8)	60.4 (59.9–61.0)	0.045	61.1 (59.9–62.3)	0.003

All presented results are means of perceived age with 95% confidence interval

^a P for trends were calculated over the three strata of glucose levels in non-diabetic subjects

^b P for trends were calculated over the three strata of glucose in non-diabetic subjects and diabetic subjects as a fourth stratum

^cAdjusted for gender

^dAdjusted for gender, chronological age, body mass index, current smoking, and photo-damage