For the first time, body composition has been studied in a very large sample of female anorexia nervosa patients (n 200) using two methods: anthropometry (skinfold thickness) and densitometry (underwater weighing). The concurrent validity of both methods appeared to be good (r 0.84). Although the mean percentage of body fat (13.5) in our sample corresponds with most of the previous reports, the range (4.3-24.8) is great. Our study shows that BMI is not a good measure of fatness. Age and duration of illness were not related to body fat. Percentage fat was found to be different (t 2.76, P < 0.01) according to the diagnostic subtype of anorexia nervosa: restricters (12.9) v. bingers and/or purgers (14.7).
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Probst et al. (1996) studied this question.
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