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. 2023 Jun;62(4):1731-1742.
doi: 10.1007/s00394-023-03104-0. Epub 2023 Feb 19.

Clinical and physical characteristics of thinness in adolescents: the HELENA study

Jérémy Vanhelst  1   2 , Laurent Béghin  3   4 , Elodie Drumez  5   6 , Manuel J Castillo  7 , Anthony Kafatos  8 , Dénes Molnar  9 , Kurt Wildhalm  10 , Mathilde Kersting  11 , Marcela Gonzales-Gross  12 , Christina Breidenassel  13 , Laura Censi  14 , Stefaan De Henauw  15 , Luis A Moreno  16   17 , Frédéric Gottrand  3
Affiliations
Free article

Clinical and physical characteristics of thinness in adolescents: the HELENA study

Jérémy Vanhelst et al. Eur J Nutr. 2023 Jun.
Free article

Abstract

Purpose: Thinness in adolescence has not been studied as extensively as overweight or obesity. The aim of this study was to assess the prevalence, characteristics, and health impacts of thinness in a European adolescent population.

Methods: This study included 2711 adolescents (1479 girls, 1232 boys). Blood pressure, physical fitness, sedentary behaviors, physical activity (PA), and dietary intake were assessed. A medical questionnaire was used to report any associated diseases. A blood sample was collected in a subgroup of the population. Thinness and normal weight were identified using the IOTF scale. Thin adolescents were compared with adolescents of normal weight.

Results: Two hundred and fourteen adolescents (7.9%) were classified as being thin; the prevalence rates were 8.6% in girls and 7.1% in boys. Systolic blood pressure was significantly lower in adolescents with thinness. The age at the first menstrual cycle was significantly later in thin female adolescents than in those with normal weight. Upper-body muscular strength measured in performance tests and time spent in light PA were significantly lower in thin adolescents. The Diet Quality Index was not significantly lower in thin adolescents, but the percentage of adolescents who skipped breakfast was higher in adolescents with a normal weight (27.7% vs 17.1%). Serum creatinine level and HOMA-insulin resistance were lower and vitamin B12 level was higher in thin adolescents.

Conclusions: Thinness affects a notable proportion of European adolescents with no physical adverse health consequences.

Keywords: Characteristics; Europe; Lifestyle; Prevalence; Thinness; Youth.

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