American Population Body Composition Averages from the NHANES-III Data Set

Introduction

The purpose of this document is ...
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Each table includes the following statistics in both English and Metric units:

                     Mean            ...
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                                               NHANES Averages for males

                                           ...
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                                  Body mass index (BMI) (Male)
        Age     10-19    20-29    30-39     40-49     ...
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                                           NHANES Averages for females

                                           NH...
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                                   Body mass index BMI (Female)
        Age     10-19    20-29     30-39      40-49  ...
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American Population Body Composition Averages from the NHANES-III Data Set

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  1. 1. American Population Body Composition Averages from the NHANES-III Data Set Introduction The purpose of this document is to provide the statistical averages of the body composition of average Americans and provide reference averages with which an individual may be compared to the population examined in NHANES-III. Scope The following eighteen (18) tables illustrate the average body composition of Americans. The tables DO NOT illustrate "ideal" or "target" values. Furthermore, the tables may show values that are consid- ered to be "unhealthy" by medical professionals. The purpose of this document is strictly limited to pro- viding a body composition reference of the population examined in NHANES-III. Methods The values of Total Body Water, Fat Free Mass, Fat Mass, Body Mass Index, Basal Metabolic Rate, and Phase angle for males and females were calculated by using the reference data as reported in NHANES- III and applying those values to the RJL Systems equations referred to as "NHANES-III" [1,2,3]. Instructions The reference tables are split by gender into two sections of nine (9) tables each. Each table shows refer- ence values for decade age groups. The first table in each section reports average height and weight from the NHANES-III data set and include the following parameters. Table 1. NHANES Baseline Age decade of age n observations in each decade Average weight Kg average weight for decade expressed in kilograms Average weight Lb average weight for decade expressed in pounds Average height Cm average height for decade expressed in centimeters Average height In average height for decade expressed in inches Following each baseline are tables for averages of: Table 2. TBW (Total Body Water) Table 3. ICW (Intracellular Water) Table 4. ECW (Extracellular Water) Table 5. FFM (Fat Free Mass) Table 6. FM (Fat Mass) Table 7. BMI (Body Mass Index) Table 8. BMR (Basal Metabolic Rate) Table 9. Phase Angle (Phase Angle)
  2. 2. -2- Each table includes the following statistics in both English and Metric units: Mean the center of the average range Standard Deviation (Std Dev) the variance of the average range And may also include: Percent of weight the percentage of total weight USAGE EXAMPLE If you want to determine the average range for body fat, in pounds, for males in the 20-29 year age decade. 1. Find the table named Fat Mass in the Male section. 2. Find the column labeled 20-29. 3. Find the rows labeled Mean (lb) and Std Dev (lb) 4. The mean is 42.5 lbs and the standard deviation is 20.3 lbs. Add 20.3 to 42.5 to find the high end of the average range and subtract 20.3 to find the low end of the average range. 5. The average fat mass of an American male between the ages of 20 and 29 is between 22.2 and 62.8 pounds. [1] Shumei S Sun, W Cameron Chumlea, Steven B Heymsfield, Henry C Lukaski, Dale Schoeller, Karl Friedl, Robert J Kuczmarski, Katherine M Flegal, Clifford L Johnson, and Van S Hubbard Development of bioelectrical impedance analysis prediction equations for body composition with the use of a multi- component model for use in epidemiologic surveysAm J Clin Nutr 2003;77:331-40. [2] WC Chumlea, SS Guo, RJ Kuczmarski, KM Flegal, CL Johnson, SB Heymsfield, HC Lukaski, K Friedl and VS Hubbard Body composition estimates from NHANES III bioelectrical impedance data/fRInternational Journal of Obesity (2002) 26, 1596-1609 [3] Giuseppe Sergi, et. al. Accuracy of Bioelectrical Impedance Analysis in Estimation of Extracellular Space in Healthy Subjects and in Fluid Retention States. Annals of Nutrition and Metabolism (1994) 38, 158-165
  3. 3. -3- NHANES Averages for males NHANES base line for males Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 n= 1379 1553 1383 1155 792 1055 724 472 32 average wt Kg = 64.3 77.4 81.6 83.7 84.1 81.7 77.5 72.6 65.1 average wt Lb = 141.8 170.6 179.9 184.4 185.5 180.2 170.9 160.1 143.5 average ht Cm= 168.7 173.8 174.8 174.3 174.5 172.5 171.2 169.5 167.1 average ht In= 66.4 68.4 68.8 68.6 68.7 67.9 67.4 66.7 65.8 Total body water (Male) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean (liter) 37.8 43.2 45.0 45.6 45.7 44.2 42.4 40.3 37.1 Mean (lb) 83.2 95.3 99.2 100.5 100.7 97.4 93.6 88.7 81.8 Std dev (liter) ± 8.0 ± 7.2 ± 7.5 ± 7.4 ± 7.2 ± 6.9 ± 6.7 ± 6.0 ± 6.0 Std dev (lb) ±17.6 ±16.0 ±16.5 ±16.3 ±15.9 ±15.3 ±14.8 ±13.2 ±13.2 percent of wt 58.7 55.8 55.1 54.5 54.3 54.0 54.8 55.4 57.0 Intracellular water (Male) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean (liter) 22.7 25.6 26.5 26.7 26.5 25.6 24.5 23.1 21.4 Mean (lb) 50.0 56.5 58.3 58.8 58.5 56.5 54.0 50.9 47.1 Std (liter) ± 4.1 ± 3.7 ± 3.8 ± 3.7 ± 3.6 ± 3.4 ± 3.2 ± 2.9 ± 3.0 Std (lb) ± 9.0 ± 8.1 ± 8.4 ± 8.2 ± 7.9 ± 7.6 ± 7.2 ± 6.4 ± 6.6 percent of TBW = 60.0 59.3 58.8 58.5 58.1 58.0 57.7 57.3 57.6 Extracellular water (Male) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean (liter) 15.1 17.6 18.5 18.9 19.1 18.5 18.0 17.2 15.7 Mean (lb) 33.3 38.8 40.9 41.7 42.2 40.9 39.6 37.9 34.7 Std (liter) ± 3.9 ± 3.6 ± 3.7 ± 3.7 ± 3.7 ± 3.5 ± 3.5 ± 3.2 ± 3.1 Std (lb) ± 8.7 ± 7.9 ± 8.2 ± 8.1 ± 8.1 ± 7.8 ± 7.7 ± 7.0 ± 6.8 percent of TBW = 40.0 40.7 41.2 41.5 41.9 42.0 42.3 42.7 42.4 Fat free mass (Male) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean (kg) 50.6 58.1 60.6 61.4 61.5 59.4 57.0 54.0 49.7 Mean (lb) 111.7 128.2 133.6 135.3 135.6 131.0 125.7 119.1 109.6 Std dev (kg) ±10.8 ± 9.9 ±10.2 ±10.1 ± 9.8 ± 9.3 ± 9.0 ± 7.9 ± 7.9 Std dev (lb) ±23.8 ±21.8 ±22.6 ±22.2 ±21.6 ±20.6 ±19.8 ±17.4 ±17.5 percent of wt 78.7 75.1 74.2 73.3 73.1 72.7 73.6 74.4 76.4 Fat mass (Male) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean (kg) 13.7 19.3 21.0 22.3 22.6 22.3 20.5 18.6 15.4 Mean (lb) 30.2 42.5 46.4 49.2 49.9 49.2 45.2 41.0 33.9 Std dev (kg) ± 8.3 ± 9.2 ± 8.8 ± 8.5 ± 8.3 ± 7.7 ± 7.1 ± 6.6 ± 6.6 Std dev (lb) ±18.3 ±20.3 ±19.3 ±18.7 ±18.4 ±16.9 ±15.6 ±14.6 ±14.6 percent of wt 21.3 24.9 25.8 26.7 26.9 27.3 26.4 25.6 23.6
  4. 4. -4- Body mass index (BMI) (Male) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean BMI 22.4 25.5 26.6 27.5 27.6 27.4 26.4 25.2 23.3 Std dev BMI ± 4.7 ± 4.9 ± 5.0 ± 4.9 ± 4.8 ± 4.4 ± 4.2 ± 3.8 ± 3.6 Basal metabolic rate BMR (Male) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean BMR 1693.1 1836.9 1833.9 1794.2 1729.7 1619.5 1491.9 1352.6 1188.4 Std dev BMR ±265.2 ±256.3 ±253.7 ±250.8 ±243.7 ±227.6 ±216.3 ±190.6 ±190.3 Phase angle (Male) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean PA 8.0 8.7 8.5 8.2 7.6 7.1 6.4 5.7 5.4 Std dev PA ± 1.0 ± 0.9 ± 0.9 ± 1.0 ± 0.9 ± 0.9 ± 1.0 ± 0.9 ± 1.2
  5. 5. -5- NHANES Averages for females NHANES base line for females Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 n= 1448 1511 1632 1248 907 1031 817 477 44 average wt Kg = 59.5 66.1 73.0 74.7 75.4 71.7 68.2 61.8 53.7 average wt Lb = 131.2 145.8 160.9 164.6 166.2 158.0 150.4 136.2 118.4 average ht Cm= 160.6 161.6 161.7 161.5 160.8 159.0 157.5 155.1 153.5 average ht In= 63.2 63.6 63.7 63.6 63.3 62.6 62.0 61.0 60.4 Total body water (Female) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean (liter) 29.5 31.2 33.1 33.3 33.3 32.0 31.3 29.3 27.5 Mean (lb) 65.0 68.8 73.0 73.5 73.5 70.6 69.1 64.7 60.7 Std dev (liter) ± 4.5 ± 4.8 ± 5.5 ± 5.4 ± 5.3 ± 4.9 ± 4.9 ± 4.1 ± 3.4 Std dev (lb) ± 9.9 ±10.5 ±12.1 ±11.9 ±11.8 ±10.8 ±10.7 ± 9.0 ± 7.6 percent of wt 49.6 47.2 45.4 44.7 44.2 44.7 45.9 47.5 51.2 Intracellular water (Female) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean (liter) 16.1 16.9 17.6 17.6 17.5 16.8 16.4 15.4 14.5 Mean (lb) 35.5 37.2 38.8 38.9 38.6 37.1 36.2 34.0 32.0 Std (liter) ± 1.9 ± 2.0 ± 2.3 ± 2.2 ± 2.2 ± 2.0 ± 2.0 ± 1.7 ± 1.4 Std (lb) ± 4.2 ± 4.4 ± 5.0 ± 4.9 ± 4.8 ± 4.5 ± 4.4 ± 3.7 ± 3.2 percent of TBW = 54.6 54.0 53.1 52.9 52.5 52.6 52.4 52.6 52.8 Extracellular water (Female) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean (liter) 13.4 14.4 15.5 15.7 15.8 15.2 14.9 13.9 13.0 Mean (lb) 29.5 31.7 34.2 34.6 34.9 33.4 32.9 30.7 28.6 Std (liter) ± 2.6 ± 2.8 ± 3.3 ± 3.2 ± 3.2 ± 2.9 ± 2.9 ± 2.5 ± 2.1 Std (lb) ± 5.8 ± 6.1 ± 7.2 ± 7.0 ± 7.0 ± 6.4 ± 6.4 ± 5.5 ± 4.6 percent of TBW = 45.4 46.0 46.9 47.1 47.5 47.4 47.6 47.4 47.2 Fat free mass (Female) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean (kg) 39.8 42.1 44.5 44.8 44.8 42.9 41.9 39.1 36.7 Mean (lb) 87.8 92.8 98.2 98.9 98.7 94.7 92.3 86.3 80.8 Std dev (kg) ± 5.9 ± 6.2 ± 7.4 ± 7.1 ± 7.0 ± 6.4 ± 6.3 ± 5.2 ± 4.1 Std dev (lb) ±13.0 ±13.7 ±16.2 ±15.6 ±15.5 ±14.1 ±13.9 ±11.6 ± 9.0 percent of wt 66.9 63.7 61.0 60.1 59.4 59.9 61.4 63.3 68.3 Fat mass (Female) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean (kg) 19.7 24.0 28.5 29.8 30.6 28.7 26.3 22.7 17.0 Mean (lb) 43.4 52.9 62.8 65.7 67.5 63.3 58.0 49.9 37.5 Std dev (kg) ±10.0 ±10.7 ±13.1 ±11.8 ±11.9 ±10.3 ± 9.6 ± 7.7 ± 6.1 Std dev (lb) ±22.0 ±23.7 ±28.9 ±25.9 ±26.1 ±22.7 ±21.1 ±17.1 ±13.5 percent of wt 33.1 36.3 39.0 39.9 40.6 40.1 38.6 36.7 31.7
  6. 6. -6- Body mass index BMI (Female) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean BMI 23.0 25.3 27.9 28.6 29.1 28.4 27.5 25.7 22.8 Std dev BMI ± 5.2 ± 5.8 ± 7.2 ± 6.6 ± 6.6 ± 5.9 ± 5.5 ± 4.5 ± 3.5 Basal metabolic rate BMR (Female) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean BMR 1443.7 1465.3 1484.7 1457.0 1412.9 1327.0 1245.8 1137.1 1023.9 Std dev BMR ±147.4 ±156.6 ±189.7 ±174.5 ±176.1 ±155.0 ±147.4 ±118.8 ±82.9 Phase angle (Female) Age 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Mean PA 7.5 7.8 7.7 7.6 7.1 6.7 6.2 5.6 5.0 Std dev PA ± 0.8 ± 0.8 ± 0.9 ± 0.8 ± 0.9 ± 0.9 ± 1.0 ± 0.9 ± 0.7

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