Medicine
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This repository contains the published and unpublished research of the Faculty of Medicine by the staff members of the faculty
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Item Nutritional status and productivity of Sri Lankan tea pluckers(Sri Lanka Medical Association, 2003) Selvaratnam, R.R.; de Silva, L.D.R.; Pathmeswaran, A.; de Silva, N.R.OBJECTIVE: To assess the impact of nutritional status on productivity of tea pluckers. DESIGN: Cross-sectional, analytical. SETTING AND PARTICIPANTS OF STUDY: All tea pluckers in five divisions of a tea estate in Hatton. MEASUREMENTS: A dietary survey was conducted using the 24 h dietary recall method. Nutritional status was assessed by measurement of body mass index (BMI) and haemoglobin (Hb) levels, and faeces were examined for helminth ova. The daily weight of tea leaves plucked and the number of days worked by each woman during the preceding month were noted from production records. RESULTS: Three hundred and four women (mean age 37.8 years, SD 8.4) were examined. The majority (59.9%) had evidence of chronic energy deficiency (BMI < 18.5). Almost all (94.4%) were anaemic (Hb < 13.3 g/dl, altitude adjusted cutoff). Mean daily iron intake was 8.7 mg (SD 2.3 mg), 45.9% of the national recommended dietary allowance. Only 10.1% had hookworm infection, all of light intensity. Multivariate regression analysis showed that dietary iron intake, the number of children and the number of children below 5 years, but not hookworm infection, were independently associated with Hb (p < 0.05). There was a strong positive correlation between monthly productivity and Hb, but not with BMI. Variation in Hb levels accounted for 65% of variation in productivity (adjusted R2 = 0.651). CONCLUSIONS: Most of the study population had chronic energy deficiency and anaemia. Dietary inadequacy of iron is a much more important causative factor than hookworm infection. Productivity was strongly associated with the degree of anaemia but not with BMI.Item Micronutrient status of plantation workers in Sri Lanka during pregnancy and post partum(Wiley-Blackwell Pub. Asia, 1996) de Silva, L.D.R.; Athukorala, T.M.S.Iron, zinc and vitamin A status was assessed in 309 plantation workers during pregnancy and in a sub-sample of 108 subjects at 20 to 36 weeks postpartum and the birth weights of their newborn were noted. A significant positive correlation was noted between haemoglobin concentration at 10-26 weeks of gestation of anaemic mothers (n = 180) and birth weights of their new born. Depleted iron stores (serum ferritin < 12 micrograms/l) were noted in 33.3% of subjects at 10-26 weeks of gestation. There was no significant change in serum ferritin concentration at > 32 weeks of gestation. Iron deficiency persisted at 20-36 weeks postpartum. Marginal vitamin A deficiency was also noted, as, 46.2% and 15.6% of the subjects respectively, had low serum vitamin A levels in pregnancy and postpartum. Low serum zinc levels were noted only in pregnancy. Iron supplementation during pregnancy was only effective in preventing further deterioration in iron status and it should be continued for about 12 weeks after delivery