[Anthropometric indices to identify metabolic syndrome and hypertriglyceridemic waist phenotype: a comparison between the three stages of adolescence].
OBJECTIVE
To determine the prevalence of metabolic syndrome (MS) and the hypertriglyceridemic waist phenotype (HW) in a representative adolescent sample; as well as to establish which anthropometric indicator better identifies MS and HW, according to gender and adolescent age.


METHODS
This cross sectional study had the participation of 800 adolescents (414 girls) from 10-19 years old. Anthropometric indicators (body mass index, waist perimeter, waist/stature ratio, waist/hip ratio, and central/peripheral skinfolds) were determined by standard protocols. For diagnosis of MS, the criteria proposed by de Ferranti et al. (2004) were used. HW was defined by the simultaneous presence of increased waist perimeter (>75th percentile for age and sex) and high triglycerides (>100mg/dL). The ability of anthropometric indicators was evaluated by Receiver Operating Characteristic curve.


RESULTS
The prevalence of MS was identical to HW (6.4%), without differences between genders and the adolescence phases. The waist perimeter showed higher area under the curve for the diagnosis of MS, except for boys with 17-19 years old, for whom the waist/stature ratio exhibited better performance. For diagnosing HW, waist perimeter also showed higher area under the curve, except for boys in initial and final phases, in which the waist/stature ratio obtained larger area under the curve. The central/peripheral skinfolds had the lowest area under the curve for the presence of both MS and HW phenotype.


CONCLUSIONS
The waist perimeter and the waist/stature showed a better performance to identify MS and HW in both genders and in all three phases of adolescence.
Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil. Electronic address: patricia.feliciano@ufv.br.
Patrícia Feliciano
PF
Pereira
Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil.
Franciane Rocha de
FR
Faria
Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil.
Eliane Rodrigues de
ER
Faria
Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil.
Helen Hermana Miranda
HH
Hermsdorff
Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil.
Maria do Carmo Gouveia
Mdo C
Peluzio
Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil.
Sylvia do Carmo Castro
Sdo C
Franceschini
Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil.
Silvia Eloiza
SE
Priore
D000293:Adolescent; D001837:Body Weights and Measures; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D064250:Hypertriglyceridemic Waist / Q000175:diagnosis* / Q000235:genetics; D008297:Male; D024821:Metabolic Syndrome / Q000175:diagnosis* / Q000235:genetics; D010641:Phenotype
Abdominal obesity; Adolescent; Adolescente; Anthropometry; Antropometria; Cintura hipertrigliceridêmica; Hypertriglyceridemic waist; Metabolic × syndrome; Obesidade abdominal; Síndrome × metabólica