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Unlabelled: This cross-sectional observational study aimed to determine the nationwide prevalence of gastroesophageal reflux disease (GORD) in French children and adolescents. Four hundred four general practitioners and 180 paediatricians compiled a register of all children and adolescents (n = 10,394, aged 0 to 17 years, mean 3.8 ± 5.6 years) who presented over two 3-day periods. For all children who, in the physician's opinion, showed symptoms of gastroesophageal reflux (GOR), a 24-item questionnaire covering the history and management of GOR was completed. Children with symptoms that impaired their daily lives were defined as having GORD, the remainder as having physiological GOR. Of the patients, 15.1 % showed GOR symptoms. Extrapolation to the overall French population yielded a prevalence of 10.3 % for GOR and 6.2 % for GORD. There was a significantly (p < 0.05) greater use of volume reduction or milk thickeners and dorsal positioning among infants with GORD versus physiological GOR. Significantly (p < 0.05) more of the infants and children with GORD received pharmacological therapy. The use of proton pump inhibitors increased with age but was significantly (p < 0.05) higher among those with GORD., Conclusions: Ten percent of French children and adolescents show GOR symptoms and 6 % have GORD. Clinical presentation and treatment vary in different age groups, but those with GORD are more likely to require pharmacological treatment.

The life expectancy of patients with Duchenne muscular dystrophy (DMD) has increased. A cross-sectional study of DMD patients showed that 54 % of 13-year-old patients are obese and that 54 % of 18-year-old patients are underweight. We aimed to describe the natural evolution of weight status in DMD. This retrospective multi-centre audit collected body-weight measurements for seventy DMD patients 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 obese and 4 % were underweight. At maximal follow-up (age 15-26 years, mean 18·3 (sd 2·3) years), 47 % were obese and 34 % were underweight. Obesity at the age of 13 years was associated with later obesity, whereas normal weight status and underweight in 13-year-old patients predicted later underweight. A W:A ≥ 151 % in 13-year-old patients predicted later obesity, and a W:A ≤ 126·5 % predicted later underweight. Our audit provides the first longitudinal information about the spontaneous outcome of weight status in DMD. Patients (13 years old) with a W:A ≥ 151 % were more likely to become obese in late adolescence, but obesity prevented later underweight. These data suggest that mild obesity in 13-year-old DMD patients (W:A between 120 and 150 %) should not be discouraged because it prevents later underweight.