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Previous issue date: 2018-06-14 / Introduction: The analysis of body composition is fundamental, since it is associated with the general health of individuals.
Objective: To evaluate the association between socioeconomic and clinical variables with body composition in children and adolescents.
Methods: Were included for convenience, participants between 5 and 19 years. Socioeconomic and clinical variables were assessed by a standardized questionnaire and corporal bioimpedance by Biospace, model InBodyS10, from Ottoboni. The variables studied were compared in relation to sex by t-test for independent and chi-square samples. The outcome variables (body mass index, skeletal mass, fat free mass and fat percentage )and predictor variables (age, sex, race, place of residence, father's schooling, physical activity, birth weight and breastfeeding )were analyzed using the quantile regression model (percentile 5, 50 and 95). The testes were bidirectional and were compared in comparison with p <0.05.
Results: Among the 529 participants included, 284 (53.6%) were female and mean age was 11.41 ? 3.9 years. The body mass index was the only one to be dissociated from the majority of the sexes (p = 0.753). The decrease in weight was associated with lower skeletal muscle mass (Difference = -8.51, 95% CI -11.12 to -5.90, p <0.001), lower fat-free mass (Difference = -13.80, 95% CI (P <0.001) and lower body mass index (Difference = -2.88, 95% CI - 4.42 to - 1.33, p <0.001) when adjusted for birth weight and breastfeeding. The lowest percentage of fat was associated with an inexpensive relative (Difference = -5.01, 95% CI -9.45 to -0.56, p = 0.027) only in the crude analyzes.
Conclusion: Muscle mass,fat free mass, skeletal muscle mass and body mass index are associated with family income. / Introdu??o: A an?lise da composi??o corporal ? fundamental, pois est? fortemente associada com sa?de geral dos indiv?duos.
Objetivo: Avaliar as associa??es entre fatores socioecon?micos e cl?nicos na composi??o corporal em crian?as e adolescentes.
M?todos: Foram inclu?das por conveni?ncia, participantes com idades entre 5 e 19 anos. Crit?rios socioecon?micos e cl?nicos foram analisados por um question?rio padronizado e a composi??o corporal por bioimped?ncia el?trica (Biospace, modelo InBodyS10, da Ottoboni). As vari?veis estudadas foram comparadas em rela??o ao sexo por meio do teste t para amostras independentes e Qui-quadrado. As rela??es das vari?veis de desfecho (?ndice de massa corporal, massa livre de gordura, massa muscular esquel?tica e percentual de gordura) e as vari?veis preditoras (renda familiar, idade, sexo, ra?a, local de moradia, escolaridade do pai, atividade f?sica, peso ao nascimento e amamenta??o) foram analisadas mediante o modelo de regress?o quant?lica (percentil 5, 50 e 95). Os testes foram bidirecionais e as diferen?as foram consideradas significativas com p<0,05.
Resultados: Entre os 529 participantes inclu?dos, 284 (53,6%) eram do sexo feminino e m?dia de idade foi de 11,41? 3,9 anos. O ?ndice de massa corporal foi o ?nico desfecho que n?o mostrou diferen?a significativa entre os sexos (p=0,753). A menor renda familiar foi associada com a menor massa muscular esquel?tica (Diferen?a= -8,51; IC95% -11,12 a -5,90, p<0,001), menor massa livre de gordura (Diferen?a= -13,80; IC95% -18,70 a -8,89, p<0,001) e menor ?ndice de massa corporal (Diferen?a= -2,88; IC95% - 4,42 a - 1,33, p<0,001) quando ajustado para peso ao nascimento e amamenta??o. O menor percentual de gordura associou-se a menor renda familiar (Diferen?a= -5,01; CI95% -9,45 a - 0,56, p=0,027) apenas nas an?lises brutas.
Conclus?o: A renda familiar est? associada com a menor massa livre de gordura, massa muscular esquel?tica e ?ndice de massa corporal.
| Identifer | oai:union.ndltd.org:IBICT/oai:tede2.pucrs.br:tede/8279 |
| Date | 14 June 2018 |
| Creators | P?rez, Lisiane Mar?al |
| Contributors | Mattiello, Rita, Montanez, Wilson Canon |
| Publisher | Pontif?cia Universidade Cat?lica do Rio Grande do Sul, Programa de P?s-Gradua??o em Medicina/Pediatria e Sa?de da Crian?a, PUCRS, Brasil, Escola de Medicina |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da PUC_RS, instname:Pontifícia Universidade Católica do Rio Grande do Sul, instacron:PUC_RS |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 3098206005268432148, 500, 500, 500, -224747486637135387, -969369452308786627 |
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