Prevalence of Subclinical Hypothyroidism in an Otherwise Healthy Population– A Study

Abstract

Subclinical hypothyroidism (SCH) is an early stage of hypothyroidism and is usually detected in patients who had thyroid function testing performed due to symptoms of hypothyroidism. The elevated TSH level and decrease level of free T4 level is called subclinical hypothyroidism. This condition occurs in 3% to 8% of the general population affecting more women than men and its prevalence also increases with the age. The symptoms are difficult to diagnose and if these symptoms are noticed, it tend to be vague and general such as weight gain, fatigue, hair loss, constipation, goiter and memory problems with brain fog. A questionnaire was designed asking a set of questions which included the history of hypothyroidism, does the person suffer from any other lifestyle disorder etc. The questionnaire was filled by interviewing the patients who came for regular checkups. Out of the total 155 patients 32% of them suffered from SCH. The analysis of survey shows that females and elderly population were most affected by subclinical hypothyroidism.