Natural evolution of weight status in XXXX : a retrospective audit.

@entity1 @entity1555 @entity28
The life expectancy of @entity1 with @entity1555 ( @entity1555 ) has increased. A cross-sectional study of @entity1555 @entity1 showed that 54 % of 13-year-old @entity1 are @entity28 and that 54 % of 18-year-old @entity1 are underweight. We aimed to describe the natural evolution of weight status in @entity1555 . This retrospective multi-centre audit collected body-weight measurements for seventy @entity1555 @entity1 born before 1992. The body-weight:age ratio (W:A) was used to evaluate weight status in reference to the Griffiths and Edwards chart. At the age of 13 years, 73 % were @entity28 and 4 % were underweight. At maximal follow-up (age 15-26 years, mean 18  3 (sd 2  3) years), 47 % were @entity28 and 34 % were underweight. Obesity at the age of 13 years was associated with @entity28 , whereas normal weight status and underweight in 13-year-old @entity1 predicted later underweight. A W:A >=  151 % in 13-year-old @entity1 predicted @entity28 , and a W:A  <= 126  5 % predicted later underweight. Our audit provides the first longitudinal information about the spontaneous outcome of weight status in @entity1555 . @entity1 (13 years old) with a W:A >=  151 % were more likely to become @entity28 in late adolescence, but @entity28 prevented later underweight. These data suggest that mild @entity28 in 13-year-old @entity1555 @entity1 (W:A between 120 and 150 %) should not be discouraged because it prevents later underweight.
