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Table 1 Study population characteristics, US adults aged 20 and older, NHANES 1999-2010

From: Multiple biomarker models for improved risk estimation of specific cardiovascular diseases related to metabolic syndrome: a cross-sectional study

  n (% within groupa)
Overall 32,458 (100.0)
Sex
Male 15,522 (48. 0)
Female 16,936 (52.0)
Age (years) \( \left(\overline{\mathrm{x}}=46.5\right) \)
20-34 8,576 (28.3)
35-44 5,483 (20.7)
45-60 7,649 (29.2)
60+ 10,750 (21.8)
Ethnicity
Mexican-American 6,552 (7.8)
White 15,993 (70.4)
Black 6,388 (11.2)
Other 3,525 (10.6)
BMI b
Underweight (0–18.5) 493 (1.9)
Normal (18.5-25) 8,656 (31.4)
Overweight (25–30) 10,491 (34.0)
Obese (30+) 10,349 (32.7)
Smoking status
Nonsmoker 17,008 (51.7)
Former smoker 8,350 (24.7)
Some days 1,229 (3.7)
Every day 5,824 (19.9)
Systolic blood pressure
Normal (<120 mmHg) 15,166 (52.5)
Prehypertension (120–139) 9,608 (32.1)
Stage 1 hypertension (140–159) 3,937 (10.8)
  1. aSurvey-weighted.
  2. bBMI is only available for a smaller subset of participants who completed the mobile exam center exam.