Vitamin A nutritional status in high- and low-income postpartum women and its effect on colostrum and the requirements of the term newborn,

• Autor(a) principal: Gurgel,Cristiane Santos Sânzio
• Data de Publicação: 2018
• Outros Autores: Grilo,Evellyn C., Lira,Larissa Q., Assunção,Débora G.F., Oliveira,Priscila G., Melo,Larisse R.M. de, Medeiros,Silvia V. de, Pessanha,Luanna C., Dimenstein,Roberto, Lyra,Clélia O.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Jornal de Pediatria (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0021-75572018000200207
• topic: Vitamin A; Colostrum; Postpartum women; High-income; Low-income; Newborn

Abstract Objective To evaluate the vitamin A status in serum and colostrum of postpartum women with different socioeconomic status, comparing the colostrum retinol supply with the vitamin A requirement of the newborn. Methods Cross-sectional study conducted with 424 postpartum women. Vitamin A maternal dietary intake was estimated using a food frequency questionnaire. Colostrum and serum retinol levels were measured by high performance liquid chromatography (HPLC). Serum retinol concentrations <20 µg/dL were indicative of vitamin A deficiency (VAD). Vitamin A levels provided by colostrum <400 µgRAE/day were considered as insufficient for term newborns. Results The mean maternal vitamin A intake during pregnancy was 872.2 ± 639.2 µgRAE/day in low-income women and 1169.2 ± 695.2 µgRAE/day for high-income women (p < 0.005). The prevalence of vitamin A deficiency was 6.9% (n = 18) in the low-income group and 3.7% (n = 6) in the high-income group. The estimated mean retinol intake by infants of the high- and low-income mothers were 343.3 µgRAE/day (85.8% AI) and 427.2 µgRAE/day (106.8% AI), respectively. Conclusions Serum vitamin A deficiency was considered a mild public health problem in both populations; however, newborns of low-income women were more likely to receive lower retinol levels through colostrum when compared with newborns of high-income mothers.