Navegando por Palavras-chave "Age factors"
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- ItemAcesso aberto (Open Access)Amamentação entre mães adolescentes e não-adolescentes, Montes Claros, MG(Faculdade de Saúde Pública da Universidade de São Paulo, 2004-02-01) Frota, Denise Ataide Linhares [UNIFESP]; Marcopito, Luiz Francisco [UNIFESP]; Universidade Estadual de Montes Claros; Universidade Federal de São Paulo (UNIFESP)OBJECTIVE: To estimate the prevalence of breastfeeding among teenage (younger than 20 years old) and adult mothers of six-month-old children and to identify factors associated with weaning. METHODS: A cross-sectional study of a sample of 237 teenage mothers and 239 adult mothers living in the city of Montes Claros, Brazil, whose babies were six-month-old at the time of the interview was carried out. Mothers answered a questionnaire at home. To assess factors associated with weaning, univariate, Mantel-Haenszel, and multiple logistic regression analyses were performed. RESULTS: Breastfeeding prevalence in children aged 6 months was 71.3% among teenage mothers and 77.4% among adult mothers (crude OR=1.38; p=0.128), but after adjusting for control variables the role of adolescence added considerable weight to weaning. Factors associated with weaning were: marital status, mother's occupation after delivery (both showed interaction with teenage years), difficulty to breastfeeding in the first days after delivery, and exclusive breastfeeding at the time of hospital discharge. CONCLUSIONS: The observed interactions with teenage in regard to weaning suggest that motherhood in this age group has unique features that should be further investigated.
- ItemAcesso aberto (Open Access)Biometria ocular, erro refrativo e sua relação com a estatura, idade, sexo e escolaridade em adultos brasileiros(Conselho Brasileiro de Oftalmologia, 2007-06-01) Pereira, Graziela Campanelli [UNIFESP]; Allemann, Norma [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)PURPOSE: To assess ocular biometric parameters and refractive error in Brazilian adults and their relationship with height, age, gender and years of formal education. METHODS: Cross-sectional study that assessed 173 subjects by keratometry, echobiometry, refraction and measurement of body height. The statistical analysis was performed using Pearson's coefficient and a regression model was constructed. RESULTS: The correlations found were: each 10 cm - increase in height was related to a 0.32 mm longer axial length, 0.07 mm deeper anterior chamber, 0.26 mm deeper vitreous chamber and 0.50 D flatter keratometry. Each 10-year increase in age, related to a 0.15 mm smaller axial length, 0.25 mm thicker lens, 0.21 mm shallower vitreous chamber and 0.23 D more positive spherical equivalent. Each 10-year increase in education related to a 0.74 D more negative spherical equivalent. Gender did not influence the analyzed biometric parameters. Equations referring to biometric parameters and spherical equivalent were formulated. CONCLUSIONS: Positive correlations were found between: axial length and height; anterior chamber and vitreous cavity depth with height; lens thickness with age; keratometry with height; and spherical equivalent with age. Negative correlations were found between: anterior chamber and vitreous cavity depth with age; spherical equivalent and years of formal education.
- ItemAcesso aberto (Open Access)Evolução etária do ângulo de carregamento do cotovelo: estudo clínico-radiográfico(Sociedade Brasileira de Ortopedia e Traumatologia, 2011-04-01) Terra, Bernardo Barcellos [UNIFESP]; Silva, Bruno Costa Mello [UNIFESP]; Carvalho, Henrique Bella Freire de [UNIFESP]; Dobashi, Eiffel Tsuyoshi [UNIFESP]; Pinto, Jose Antonio [UNIFESP]; Ishida, Akira [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)OBJECTIVE: This paper has the purpose of evaluate the elbow carrying angle by clinic and radiographic examination in normal children and determine the range of normality according to age from childhood to skeletal maturity and also check if there is a statistically significant difference between the clinical and radiographic measurements. METHODS: We evaluated 510 persons with ages varying from 1 to 18 years distributed in groups with 30 subjects according to the age group with 1-year interval. We performed radiographic examination of the elbow and measured the angle formed by the long axis of the humerus and ulna. The data were statistically analyzed using the student t-test. RESULTS: We determined a normal curve of the study population where there was an increase of this parameter with the progression of age. No statistically significant difference between the clinical and radiographic measures. CONCLUSION: The average of the elbow carrying angle was 12,78 ± 5,35 degrees for females and 11,20 ± 4,45 degrees for males. This values increase progressively from childhood until 16 years when we notice stabilization. There was no statistical difference between the clinical and radiographic measurements.