Population Health Metrics

Table 1 Descriptive statistics of the U.S. adult population ages 35-74 by diabetes status and period

From: Mortality and excess risk in US adults with pre-diabetes and diabetes: a comparison of two nationally representative cohorts, 1988–2006

	No Diabetes		Pre-Diabetes		Diabetes
	NHANES III	NHANES CTS	NHANES III	NHANES CTS	NHANES III	NHANES CTS
Sample size	6,277	4,014	1,679	660	1,254	796
Mean age, y	49.45	49.47	56.19	55.52	57.11	56.99
Hispanic,%	7.62	10.84	10.26	15.65	11.25	16.91
Non-Hispanic Black,%	7.32	8.71	20.07	16.67	17.69	17.79
Education,%
Less than High School	20.99	17.66 †	35.63	29.06	44.35	37.61
High School	33.21	24.45 †	35.56	28.52 †	33.15	24.84 †
More than High School	45.80	57.89 †	28.82	42.42 †	22.51	37.55 †
Smoking Status,%
Current	25.43	23.91	37.63	22.13 †	22.01	19.13
Former	31.51	28.51 †	30.04	33.85	40.98	34.56
Never	43.06	47.58 †	32.33	44.02 †	37.02	46.31 †
Mean BMI^a (kg/m²)	26.69	27.73 †	28.85	31.74 †	31.41	32.86 †
BMI^a category (kg/m²),%
30 to 35	15.09	17.41 †	20.34	31.98 †	28.25	25.68
More than 35	6.88	10.48 †	15.33	24.27 †	26.20	33.15 †
Mean HbA1c	5.16	5.24 †	5.99	5.97	8.11	8.00

BMI: body mass index; HbA1c: Hemoglobin A1c; a. BMI derived from measure data on height and weight; No Diabetes is defined as HbA1c less than 5.7%; Pre-Diabetes is defined as HbA1c between 5.7 and 6.5%; Diabetes is defined as HbA1c above 6.5% or on treatment for diabetes. Sources: National Health and Nutrition Examination Survey (NHANES) III (1988–1994) and continuos (CTS) (1999–2002).
† Significantly different (p < 0.05) compared with NHANES III.

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