Table 1: Descriptive characteristics of the study population by gender using weighted estimates: from the NHANES 1999–2006.

VariablesMenWomenP value
Mean or percentage (SE)Mean or percentage (SE)

Age (yrs)41.30 (0.58)43.56 (0.64)<0.05
Marital status (%)
 Married52.00 (2.27)39.28 (1.65)<0.0001
 Single48.00 (2.27)60.71 (1.65)
Income (%)
 Less than $20,00028.91 (1.65)37.08 (2.55)
 $20,000–44,90037.10 (1.94)34.70 (2.16)<0.05
 $45,000 or above33.99 (2.06)28.22 (2.10)
Education (%)
 Less than high school31.70 (2.45)24.09 (1.86)
 High school25.39 (1.83)23.78 (1.67)<0.05
 College or above42.91 (2.10)52.13 (1.83)
Alcohol drinking (%)
 Nondrinkers34.15 (2.34)49.26 (1.85)
 Moderate drinkers35.06 (1.73)25.24 (1.33)<0.0001
 Heavy drinkers30.79 (2.41)25.50 (1.64)
Cigarette smoking (%)
 Nonsmokers71.41 (2.04)84.13 (1.59)
 Light smokers15.78 (1.53)10.20 (1.30)<0.0001
 Heavy smokers12.80 (1.84)5.67 (0.97)
Physical activity (%)
 Inactive39.03 (2.01)45.40 (1.99)
 Low activity18.30 (1.56)22.18 (1.75)<0.05
 Medium activity11.26 (1.10)12.83 (1.48)
 High activity31.42 (1.91) 19.59 (1.76)
Diastolic BP (mm Hg)74.38 (0.61)71.28 (0.54)<0.05
Systolic BP (mm Hg)128.28 (0.78)126.58 (0.91)0.15
 Elevated BP (%)49.71 (2.36)50.06 (1.89)0.53
Fasting glucose (mg/dL)103.49 (1.33)102.86 (1.29)0.87
Triglyceride (mg/dL)119.20 (4.24)100.70 (2.29)<0.05
HDL-C (mg/dL)51.56 (0.55)58.62 (0.59)<0.0001
Abdominal obesity (%)34.47 (2.16)73.46 (1.65)<0.0001
 Waist circumference (cm)97.02 (0.70)99.68 (0.61)<0.05
Metabolic syndrome (%)26.77 (1.85)39.43 (1.52)<0.0001