    Sentence %: B ‘comparison , the’ proportion of   ype with a BMI of 50 or above increased by a  factor of five ~ from about 1 in.2;009 to one in,  400. 4 .         seatenct "Thee with a BML of 50 or greates.  sometimes called’super obesity ; incteased by.a    factor of five ; from one in 2,000 to orie in400-  i    