Made available in DSpace on 2014-12-17T14:16:27Z (GMT). No. of bitstreams: 1 MilenaTFA_DISSERT.pdf: 539795 bytes, checksum: f3249686901e2101c3e1aa253a03c1da (MD5) Previous issue date: 2009-07-31 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The exclusive breastfeeding in the first six months of life practice is essential for the health and development of children. Studies show there is in human milk protective antibodies against intestinal parasites and a relationship between the absence of breastfeeding or weaning and parasitic infections. This work was a prospective cohort study involving 34 pregnant adolescents attended school in Maternity Januario Cicco / RN and their children, to assess the influence of breastfeeding on intestinal parasites in them. Thus, the parasitic infection was investigated by examination of feces parasitological and environmental factors by use of questionnaires. The average age of the mothers studied was 16.2 years. Of these 76.4% were infected and the most prevalent species of parasites were Entamoeba histolytica/dispar (76.9%), Giardia lamblia (19.2%) and Ascaris lumbricoides (11.5%). The infected children had an average age of 5.1 months and the frequency of parasites was 61.7%. The infection was earlier detecctada with 45 days of life. The most common parasites were Giardia lamblia (40%), Entamoeba histolytica/dispar (35%), Ascaris lumbricoides (5%) and Ancylostoma (5%). The average length of exclusive breastfeeding was 2.2 months. There was an association between increased duration of exclusive breastfeeding and increased time to detection of parasites in the feces of children. There was no statistically significant correlation between the socio-economic conditions and cultural and breastfeeding. The data reinforce the importance of breastfeeding to protect the children in its first year of life / A amamenta??o exclusiva nos primeiros seis meses de vida constitui pr?tica indispens?vel para a sa?de e o desenvolvimento da crian?a. Estudos mostram existir no leite humano anticorpos protetores contra enteroparasitos e uma rela??o entre a aus?ncia do aleitamento ou desmame e infec??es parasit?rias. Neste trabalho realizou-se um estudo de coorte prospectivo, envolvendo 34 gestantes adolescentes atendidas na Maternidade Escola Janu?rio Cicco/RN e seus filhos, para avaliar a influ?ncia do aleitamento materno nas parasitoses intestinais dos mesmos. Para tanto, a infec??o parasit?ria foi investigada por exame parasitol?gico de fezes e os fatores ambientais por aplica??o de question?rios. A idade m?dia das m?es estudadas variou de 14 a 19 anos, com m?dia de 16,2 anos. Destas, 76,4% estavam infectadas e as esp?cies de parasitos mais prevalentes foram Entamoeba histolytica/dispar (76,9%), Giardia lamblia (19,2%) e Ascaris lumbricoides (11,5%). Os filhos infectados apresentaram m?dia de idade de 5,1 meses e a frequ?ncia de parasitoses foi de 61,7%. A infec??o mais precoce foi detecctada com 45 dias de vida. Os parasitas mais freq?entes foram: Giardia lamblia (40%), Entamoeba histolytica/dispar (35%), Ascaris lumbricoides (5%) e Ancylostomo (5%). O tempo m?dio de amamenta??o exclusiva foi de 2,2 meses. Observou-se associa??o entre um maior tempo de amamenta??o exclusiva e um maior tempo para a detec??o de parasitos nas fezes das crian?as. N?o foi encontrada correla??o estatisticamente significativa entre as condi??es socioecon?micas e culturais e a amamenta??o. Os dados obtidos refor?am a grande import?ncia do aleitamento materno em proteger a crian?a no seu primeiro ano de vida