Table 1. Participant characteristics (se) by diabetes status, 2005–2014 National Health and Nutrition Examination Survey^*.

	Normal glucose N = 2032	Prediabetes† N = 811	P-value‡
Age, years	15.5 (0.06)	15.3 (0.13)	0.08
Race/ethnicity§			0.02
Non-Hispanic white, %	60.3 (2.25)	51.4 (3.71)
Non-Hispanic Black, %	14.3 (1.26)	17.1 (1.87)
Hispanic, %	18.0 (1.50)	24.5 (2.61)
Female, %	51.8 (1.77)	37.8 (2.58)	< 0.001
Household income < $20 000, %	14.9 (1.43)	16.8 (1.95)	0.37
Smoke, %	14.6 (1.15)	16.0 (2.37)	0.61
Total daily calories, kcal	2115 (27.7)	2149 (65.1)	0.59
Per cent of calories from saturated fat, mean %	11.1 (0.11)	11.4 (0.21)	0.18
Obese, %	18.4 (1.33)	28.6 (2.68)	< 0.001

^*Weighted data are presented.

^†Prediabetes based on HbA1c 39–46 mmol/mol (5.7–6.5%), fasting plasma glucose 5.5–7.0 mmol/l or 2-h plasma glucose 7.8–11.1 mmol/l.

^‡P-value determined using two-tailed, large-sample z-tests.

^§Other race/ethnicity not shown.