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Table 3 Regression analysis of fat free mass, and fat free mass index by age in white, and black men and women. The Third National Health and Nutrition Examination Survey (NHANES III 1988–94).

From: Ethnic and age-related fat free mass loss in older Americans: The Third National Health and Nutrition Examination Survey (NHANES III)

  

Men

Women

 

Characteristics

Beta Coefficient

Standard Error

P Value

Beta Coefficient

Standard Error

P Value

FFM (kg)

       
 

Ethnicity

-0.338

0.276

0.227

-0.821

0.313

0.012

 

Age (yrs)

-0.109

0.011

<0.001

-0.125

0.021

<0.001

 

BMI (kg/m2)

1.527

0.039

0.001

1.053

0.032

<0.001

FFMI (kg/m2)

       
 

Ethnicity

-0.333

0.070

<0.001

-0.456

0.147

0.003

 

Age (yrs)

0.017

0.003

<0.001

-0.015

0.005

0.004

 

Body Weight (kg)

0.122

0.003

<0.001

0.479

0.006

<0.001

  1. Note: Statistical significance was set at P ≤ 0.05; Fat free mass model adjusted for body mass index; and fat free mass index model adjusted for body weight. FFM indicates fat free mass; FFMI indicates fat free mass index; and BMI indicates body mass index.