Objective: The present study estimates the prevalence of obesity among ten-year old children living in Southern Italy and compares it with the prevalence of obesity among children living in other western countries.
Methods: 110 children attending the 4th grade of a randomly selected primary school in Naples were studies in the 1992. Eighty-eight per cent of the total school population was examined: 52 girls, 58 boys: mean age = 9.6 years (SEM = +/- 0.10). Each child underwent medical examination and anthropometric assessment. The percentile values for Body Mass Index (BMI = weight/height 2) and triceps skinfolds thickness (mm) were calculated and compared to that of children of the same age and sex living in other countries, chosen from comparable studies available in the literature.
Results: Percentile values for triceps skinfolds thickness in Neapolitan children are similar to those reported in the other populations considered for comparison, however BMI values were different. Children in Naples have the highest BMI values at the 50th, 75th, 90th and 95th percentile. The prevalence of obesity among Neapolitan children was estimated using as a cut-off, the BMI value at the 90th percentile of each population considered for the comparison and calculating the rate ratio with 95% confidence interval (95% CI). The prevalence of obesity in Naples among girls, was 5.2 times (3.8-6.6 95% CI) as high as in France, 3.3 times (2.2-4.4) as high as in Holland, 1.7 times (0.9-2.5) as high as in USA, 2.5 times (1.7-3.4) as high as in Milan (Northern Italy); among boys it was 4.3 times (3.0-5.6) as high as in France, 4.0 times (2.7-5.2) as high as in Holland, 2.1 times (1.2-3.0) as high as in the USA, 2.5 times (1.7-3.4) as high as in Milan.