<P> However--contrary to the aforementioned internal and external cross-validation--, these formulae definitely proved unusable at least for adults and are presented here illustratively only . </P> <P> Still, the following formula designed for adults proved to be much more accurate at least for adults: </P> <Dl> <Dd> (Adult) body fat percentage = 1.39 × BMI + 0.16 × age − 10.34 × gender − 9 (\ displaystyle (\ text ((Adult) body fat percentage)) = 1.39 \ times (\ text (BMI)) + 0.16 \ times (\ text (age)) - 10.34 \ times (\ text (gender)) - 9) </Dd> </Dl> <Dd> (Adult) body fat percentage = 1.39 × BMI + 0.16 × age − 10.34 × gender − 9 (\ displaystyle (\ text ((Adult) body fat percentage)) = 1.39 \ times (\ text (BMI)) + 0.16 \ times (\ text (age)) - 10.34 \ times (\ text (gender)) - 9) </Dd>

What is the average male body fat percentage