RESUMO
Two hundred and twenty-two indigenous women living in La Paz, Bolivia at an altitude of 3700 m were screened for the haematological parameters of haemoglobin, transferrin saturation, haematocrit and total iron-binding capacity. The data from 152 nonpregnant healthy women under 45 years of age were utilized in both distributional and maximum likelihood analyses in order to evaluate the prevalence of abnormal haemoglobin levels. The prevalence of anaemia and polycythaemia in the population was low and not considered to be a public health problem. Eleven per cent of the population was found to be iron deficient (less than 15% transferrin saturation).
Assuntos
Altitude , Hemoglobinas/análise , Adulto , Anemia/epidemiologia , Bolívia , Feminino , Hematócrito , Humanos , Ferro/sangue , Policitemia/epidemiologia , Valores de Referência , Transferrina/análiseRESUMO
The growth of 79 healthy, well-nourished lowland (400 M) and highland (3600 M) Bolivian infants was analyzed in a longitudinal study through the first postnatal year. Compared to low altitude infants, the high altitude infants were found, by analysis of covariance controlling for size at the previous exam, to be significantly shorter at birth, 1 and 6 months, while they were significantly lighter only at birth and 1 year. Recumbent length gain was slower in the high altitude infants in the early months of life, while weight gain did not differ between altitudes. The observed lower weights at high altitude throughout the first year appear to be due to a persistence of lower weights seen at birth and not to postnatal growth retardation. Significantly greater triceps and subscapular skinfold thickness measurements were found in the highland group, despite their smaller length and weight. The possible causes and implications of the greater fat accumulation in the highland infants are discussed.