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Table 1 General and clinical characteristics of U.S. adults aged ≥50 by gender, NHANES 1999–2002

From: Association between the metabolic syndrome and its components and gait speed among U.S. adults aged 50 years and older: a cross-sectional analysis

Characteristic Men (N = 835) % (or mean) ± SE Women (N = 850) % (or mean) ± SE P
Age, years, mean 62.8 ± 0.4 64.1 ± 0.3 0.0083
Non-Hispanic white 83.5 ± 1.9 81.5 ± 2.6 0.1703
Non-Hispanic black 6.3 ± 1.0 6.8 ± 1.3 0.5443
Mexican American 3.7 ± 0.7 3.4 ± 0.8 0.4768
Other (other & other Hispanic) 6.5 ± 1.4 8.3 ± 2.4 0.2099
≥High school education 76.9 ± 1.8 75.0 ± 1.5 0.2955
Gait speed impairment 29.3 ± 2.6 12.5 ± 1.3 0.0000
Gait Speed (meters/second), mean 1.05 ± 0.01 1.02 ± 0.01 0.0891
METs/week of leisure-time physical activity    
   0 38.5 ± 3.4 46.0 ± 3.3 0.0210
   >0-<22.5 29.8 ± 2.3 27.9 ± 2.2 0.5112
   22.5-<35 12.5 ± 1.2 12.0 ± 1.6 0.7407
   ≥35 19.1 ± 2.3 14.1 ± 1.6 0.0690
Smoking status    
   Never 26.4 ± 2.0 56.0 ± 1.8 0.0000
   Current 23.6 ± 2.1 15.3 ± 1.8 0.0001
   Former 50.1 ± 2.3 28.7 ± 1.7 0.0000
Alcohol consumption    
   Non-drinker 25.0 ± 2.3 40.1 ± 2.2 0.0000
   Moderate drinker 59.3 ± 2.9 52.8 ± 2.3 0.0857
   Heavy drinker 15.6 ± 1.9 7.1 ± 1.1 0.0010
Arthritis 36.0 ± 1.5 51.9 ± 2.1 0.0000
Walking aid 1.3 ± 0.3 2.1 ± 0.5 0.2207
BMI >30 kg/m2 29.7 ± 2.1 32.0 ± 2.4 0.3896
BMI (kg/m2), mean 28.2 ± 0.2 28.3 ± 0.3 0.8759
Waist circumference (cm), mean 103.4 ± 0.5 95.3 ± 0.8 0.0000
Systolic blood pressure (mm Hg), mean 129.5 ± 0.8 135.4 ± 0.6 0.0000
Diastolic blood pressure (mm Hg), mean 74.0 ± 0.5 71.3 ± 0.7 0.0025
Fasting Glucose (mg/dl), mean 112.7 ± 1.7 105.0 ± 1.4 0.0004
Triglyceride (mg/dl), mean 175.9 ± 11.3 158.9 ± 4.7 0.1573
Total cholesterol concentration (mg/dl), mean 207.5 ± 2.1 220.3 ± 1.5 0.0000
LDL cholesterol (mg/dl), mean 128.3 ± 1.7 130.3 ± 1.5 0.3398
HDL cholesterol (mg/dl), mean 46.7 ± 0.5 59.1 ± 0.8 0.0000
  1. NHANES, National Health and Nutrition Examination Survey; SE, standard error; METs, metabolic equivalents; LDL, low-density lipoprotein cholesterol; HDL, high-density lipoprotein cholesterol.