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(colour online) Prevalence of obesity by age according to criteria of WHO(
17
,
18
) (
, males;
, females) and Cole et al.(
7
) (
, males;
, females). Pelotas, southern Brazil, 1982 to 2004–2005. Values are means with standard deviations represented by vertical bars. *Mean obesity prevalence was significantly different between males and females (χ
2 test): P < 0·05
