Menstrual Cycle Resumption After Anorexia Predicted by BMI, Fat Percentage
BMI and body fat percentage may predict menstrual cycle recovery in women with a history of anorexia nervosa.
(HealthDay News) — For patients with a history of anorexia nervosa, both BMI and fat percentage can predict resumption of the menstrual cycle, according to a study published online in the International Journal of Eating Disorders.
Laura Al-Dakhiel Winkler, MD, from Odense University Hospital in Denmark, and colleagues examined the correlation between body composition measures and menstrual status in 113 women with a history of anorexia nervosa. Participants underwent a dual-energy X-ray absorptiometry scan and completed questionnaires relating to medication prescription and menstrual function.
The researchers found that 50% of participants were expected to resume menstrual function at a BMI of 19 kg/m² or a fat percentage of 23%. The expected resumption of menstrual function was at a body mass index of 14 kg/m² or a fat percentage of 11% for 25% of participants. Prediction of resumption of menses was equivalent for BMI and fat percentage.
"Fat percentage and BMI were positive predictors of the resumption of menses; however, body composition measured by dual energy X-ray absorptiometry was not superior to BMI in predicting menstrual recovery, which is of great clinical relevance as BMI is easier and cheaper to obtain," the researchers wrote.