THE IODINE STATUS OF FAMILIES FROM ENDEMIC AND NON ENDEMIC AREAS OF GOITRE
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Date
1999-08-30
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE
Abstract
The investigation focussed on iodine status of families from endemic
(Sirsi town) and non endemic (Dharwad city] areas of goitre during 1996-
97. Iodine retention in different types of salts inz., powdered salt, brown
rock salt and crystal salt was estimated following commonly practised
storage methods in surveyed households. The storage methods included
plastic jar with lid, glass jar with lid, earthenware pot with lid, salt pack
as it is and cut open salt packet. A total of 50 families each from endemic
and non endemic areas of goitre were randomly selected for the study.
The overall prevalence of goitre in endemic area was higher (5.14%)
compared to non endemic area (0.39%). Goitre was detected only in
females. Maximum prevalence of grade 1 (2.21%) and grade 2 (0.74%)
goitre was observed in the age group of 40+ year group in endemic area.
Only one case diagnosed for goitre in non endemic area also belonged to
40+ year group. Anthropometric measurements viz., height, weight, mid
arm circumference and fatfold thickness of goitrous subjects were lower
compared to normal subjects. The median urinary iodine excretion (UIE)
of normal subjects in both the areas was almost same (25pg/dL). The
subjects clinically diagnosed for goitre were only suffering from mild
iodine deficiency (median UIE, 5.0-9.9 pg/dL) in both the areas.
Irrespective of storage methods, the decrease in iodine content of salt
during storage was apparent in all types of salts. The iodine content in
different storage methods decreased over a period of time irrespective of
type of salts. More retention of iodine was determined in powdered salt
(91.16%) after three months of storage. Highest per cent retention of
iodine was observed in intact salt packet (97.19%).
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