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Age Group a<br />

Child-Specific Exposure Factors Handbook<br />

Chapter 8 - Body Weight<br />

Table 8-20. Estimated Mean Body Weights of Males and Females by Single-Year Age Groups Using NHANES II Data<br />

Males (kg) Females (kg) Overall (kg)<br />

Mean SD N Mean SD N Mean SD N<br />

0 to 1 year 9.4 1.3 179 8.8 1.3 177 9.1 1.2 356<br />

1 to 2 years 11.8 1.6 370 10.8 1.4 336 11.3 1.5 706<br />

2 to 3 years 13.6 1.8 375 13.0 1.5 336 13.3 1.6 711<br />

3 to 4 years 15.6 1.9 418 14.9 2.1 366 15.2 1.8 784<br />

4 to 5 years 17.8 2.4 404 17.0 2.3 396 17.4 2.4 800<br />

5 to 6 years 19.8 2.8 397 19.6 3.2 364 19.7 2.8 761<br />

6 to 7 years 23.0 3.7 133 22.1 3.9 135 22.5 3.6 268<br />

7 to 8 years 25.1 3.8 148 24.7 4.6 157 24.8 3.8 305<br />

8 to 9 years 28.2 5.6 147 27.8 4.8 123 28.1 5.6 270<br />

9 to 10 years 31.1 5.8 145 31.8 7.3 149 31.4 5.9 294<br />

10 to 11 years 36.4 7.2 157 36.1 7.7 136 36.2 7.1 293<br />

11 to 12 years 40.2 9.8 155 41.8 10.1 140 41.0 9.9 295<br />

12 to 13 years 44.2 9.8 145 46.4 10.1 147 45.4 10.0 292<br />

13 to 14 years 49.8 11.4 173 50.9 11.2 162 50.4 11.5 335<br />

14 to 15 years 57.1 10.7 186 54.7 10.7 178 55.9 10.5 364<br />

15 to 16 years 61.0 10.4 184 55.1 9.0 145 58.0 9.9 329<br />

16 to 17 years 67.1 11.7 178 58.1 9.6 170 62.4 10.9 348<br />

17 to 18 years 66.7 11.3 173 59.6 10.4 134 63.3 10.7 307<br />

18 to 19 years 71.0 12.0 164 59.0 10.2 170 64.6 10.9 334<br />

19 to 20 years 71.7 11.3 148 60.1 10.1 158 65.3 10.3 306<br />

20 to 21 years 71.6 12.0 114 60.5 10.7 162 65.2 10.9 276<br />

a Data were converted from ages in months to ages in years. For instance, age 1–2 years represents ages from 12 to 23 months.<br />

SD = Standard Deviation.<br />

N = Number of individuals.<br />

Source: Portier et al., 2007.<br />

Page Child-Specific Exposure Factors Handbook<br />

8-32 September 2008

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