ASSESSMENT OF THYROID FUNCTION DISORDERS AMONG THE SUBJECTS ATTENDING CENTRAL LABORATORY OF A TERTIARY CARE HOSPITAL: AN OBSERVATIONAL, CROSS-SECTIONAL STUDY

Objective: Thyroid disorders are the most common endocrine disorders worldwide and India is not an exception. Several factors may determine the prevalence of thyroid dysfunction including age, gender, geographical and ethnic background, and most importantly iodine intake. Therefore, data related to thyroid disorders from one population cannot be extrapolated to another. In this study, we aimed to assess the disorders of thyroid function among the subjects attending the central laboratory of a tertiary care hospital. Methods: This observational, cross-sectional study was conducted in the Department of Pharmacology and the Department of Biochemistry of the same institute over a period of 3 months. All subjects of either sex attending the central laboratory of the institute for estimating thyroid function on their outpatient visit during the study period were included. Subjects who were on any medications known to alter the thyroid hormone status or diagnosed with a thyroid disorder and/or on therapy were excluded. A pre-designed and pre-tested data collection form was used for taking interviews to collect relevant data including sociodemographic characteristics, comorbid conditions, thyroid illness, and investigational reports. Results: A total of 132 subjects were included in the study. The majority of them were female (72.27%) and residents of urban areas (52.27%). The most common comorbid conditions and presenting symptoms were hypertension (25.76%) and fatigue (46.97%), respectively. The majority of the subjects were found to be euthyroid (81.81%). About 18.19% of the study subjects were having thyroid disorders, most commonly subclinical hypothyroidism (SCH) (13.64%), followed by primary hypothyroidism (2.27%), secondary hyperthyroidism (1.52%), and subclinical hyperthyroidism (0.76%). Thyroid disorders were mainly found in females, such as primary hypothyroidism (66.67%), SCH (66.67%), and subclinical hyperthyroidism (100%). The majority of the thyroid disorders were found in the age group of 26–50 years (20.27%), where females were found to have more primary hypothyroidism (3.17%), and SCH (12.70%). Conclusion: The findings of our study call for a review of current practices regarding thyroid disorders to include active screening of thyroid function among the subjects at greater risks and an emphasis on regular monitoring of the thyroid status.