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Table 1 Characteristics of study fasting samples - NHANES III (1991-1994)

From: Genetic variants associated with fasting blood lipids in the U.S. population: Third National Health and Nutrition Examination Survey

Characteristics Non-Hispanic White (n = 989) Non-Hispanic Black (n = 683) Mexican American (n = 741) P-value**
  N Weighted*% (SE) N Weighted % (SE) N Weighted % (SE)  
Age (years)        
   17-39 328 45.57 (1.88) 386 55.67 (2.30) 426 65.75 (2.32) <.0001
   40-59 251 31.92 (2.07) 194 29.89 (1.97) 166 25.74 (1.98)  
   > = 60 410 22.51 (1.88) 103 14.45 (2.02) 149 8.51 (1.11)  
Sex        
   Male 380 47.00 (1.78) 273 43.07 (1.79) 370 51.34 (1.17) 0.0053
   Female 609 53.00 (1.78) 410 56.93 (1.79) 371 48.66 (1.17)  
Education        
   <High School 246 18.26 (1.60) 225 30.40(2.83) 445 57.56 (2.84) <.0001
   High School 363 35.71 (1.83) 252 37.23 (2.57) 176 25.64 (2.22)  
   College and Above 379 46.03 (2.64) 204 32.37 (3.21) 114 16.80 (2.39)  
Physical Activity        
   None 195 16.69 (1.47) 199 28.74 (2.60) 256 31.35 (2.11) <.0001
   Low 354 36.29 (1.82) 215 31.07 (1.87) 222 30.30 (1.75)  
   High 440 47.02 (2.50) 269 40.19 (2.71) 263 38.35 (2.22)  
Alcohol Intake        
   None 536 45.67 (2.63) 375 55.16 (1.75) 376 48.25 (1.72) 0.0268
   <4 237 28.82 (1.86) 135 22.00 (1.30) 170 26.66 (2.74)  
   > = 4 198 25.51 (1.83) 145 22.84 (1.44) 174 25.09 (1.82)  
Smoking Status        
   Current 207 24.40 (2.02) 198 29.87 (1.54) 149 20.39 (1.65) <.0001
   Former 291 28.36 (1.57) 87 13.43 (1.48) 161 19.34 (1.99)  
   Non-smoker 491 47.24 (2.36) 398 56.70(1.91) 431 60.26 (1.67)  
  N Mean (SE) N Mean (SE) N Mean (SE) P-value***
BMI 989 26.40 (0.20) 683 28.17 (0.28) 739 27.83 (0.25) <.0001
Total Fat Intake (g/day)**** 963 90.21 (2.49) 658 85.63 (2.90) 724 84.35 (2.33) 0.1826
Serum HDL (mg/dL) 983 49.33 (0.78) 675 53.88 (0.97) 739 46.58 (0.67) 0.0001
Serum LDL (mg/dL) 962 126.35 (1.20) 665 122.96 (1.57) 710 118.55 (1.25) 0.007
Total Cholesterol (mg/dL) 985 202.07 (1.46) 677 197.91 (1.39) 739 193.37 (1.49) 0.004
Serum Triglycerides (mg/dL) 984 138.73 (4.82) 677 107.27 (2.36) 738 146.67 (4.29) 0.0001
  1. SE, standard error.
  2. *Frequencies were adjusted using the NHANES III genetic sample weights.
  3. **Chi-square test.
  4. ***P-value was calculated using the Satterthwaite-adjusted F test.
  5. ****Reported in a dietary recall from the previous 24-hour period.