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Subclinical hypothyroidism is a very common disorder with prevalence ranging from 1–10% of the, mostly adult, population, with the highest rate of about 26% in elderly women. Clinically subclinical hypothyroidism manifests as dyslipidemia, heart disorders, and neurological disorders and mental problems, and several many cross-sectional studies have also postulated that it confers an increased risk of atherosclerosis Adults above 18 years of age attending Medical outpatient clinic of Thanjavur medical college and hospital from the period of January 2019 to January 2020 were included in the cross sectional study. The sample included about 218 adults whom were selected randomly. Adults with a known thyroid disorder, previously treated for thyroid disorder, patients having clinical infectious disease and adults with comorbidities of Diabetes mellitus, Hypertension, Coronary artery disease,and chronic kidney diseases were excluded. Our study shows a prevalence rate of 12.4 % for subclinical hypothyroidism in elderly. Considering those observations our study demonstrated most of the patients (30.4%) with subclinical hypothyroidism showed symptoms of thyroid hormone deficiency among which fatigability(32.3%) and constipation (31.3%) were the most frequently seen. the study showed a significant raise in autoimmunity in elderly women with subclinical hypothyroidism compared with other controls. Subclinical hypothyroidism, a common condition, is prevalent in 12.4% of the population, with higher rates in females and elderly women, and is characterized by fatigability and constipation.
Sundararajan et al. (Tue,) studied this question.