. 2009 Oct 6;33(1):49–54. doi: 10.2337/dc09-0341

Table 2.

Prevalence of risk factors for diabetes in study subjects

	SIGT				NHANES III				NHANES 2005–2006
	All subjects	IFG (±IGT)	IGT (±IFG)	IFG + IGT	All subjects	IFG (±IGT)	IGT (±IFG)	IFG + IGT	All subjects	IFG (±IGT)	IGT (±IFG)	IFG + IGT
n	1,581				2,014 (weighted)				1,111 (weighted)
Age <60 years	84	79	76	77	66	62	51	48	80	72	60	51
BMI ≥35 kg/m²	22	27	30	38	9	11	11	12	16	23	27	30
Family history of diabetes	46	49	54	55	28	29	31	34	36	39	50	51
Triglycerides ≥150 mg/dl	13	18	18	21	37	45	53	50	28	37	47	55
Reduced HDL cholesterol^*	47	54	57	64	40	44	47	50	21	23	29	29
Hypertension^†	49	63	68	69	41	44	57	54	28	37	42	49
A1C <6.0%	7	10	12	18	8	9	11	13	6	9	11	17
≥1 risk factor	99	99	99	99	95	96	96	96	74	83	94	96
Metformin indicated^‡	8.1	31.0	52.7	99.2	9.1	28.6	57.3	96.2	8.7	28.2	61.7	96.2

Data are %. Glucose tolerance categories: IFG (±IGT), IFG with or without IGT; IGT (±IFG), IGT with or without IFG; IFG + IGT, both IFG and IGT.

*Reduced HDL cholesterol defined as ≤40 mg/dl in men and ≤50 mg/dl in women.

†Hypertension defined by any of the following: history of hypertension, systolic blood pressure ≥130 mmHg, or diastolic blood pressure ≥85 mmHg.

‡Metformin indicated per the ADA consensus statement (8) criteria of the presence of both IFG and IGT and one of the following diabetes risk factors: age <60 years, BMI ≥35 kg/m², family history of diabetes, elevated triglycerides, reduced HDL cholesterol, and A1C >6.0%. Risk factors for diabetes that were not specifically defined by the ADA were categorized according to the AHA/NHLBI diagnostic criteria for metabolic syndrome (12): presence of hypertension by history, systolic blood pressure >130 mmHg or diastolic blood pressure >85 mmHg, triglyceride level ≥150 mg/dl, and HDL cholesterol <40 mg/dl in men and <50 mg/dl in women.