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Background: Data on thyroid disease epidemiology in the Middle East are scanty and anecdotal. This study aimed to assess the pattern of thyroid disease seen in Faiha Specialized Diabetes, Endocrine and Metabolism Center (FDEMC) in Basrah,Southern Iraq. Methods Retrospective observational study of database retrieval from the FDEMC a tertiary care Center in Basrah for the period of September 2008 to January 2019. Included all adults non pregnant 18 years or older. Results Total enrolled patients 17878; of them 4174(23.3%) men and 13705(76.7 %) women. There were 2229(12.5%) patients with hypothyroidism (83.0% women), with subclinical hypothyroidism observed in 364 out of 2229 with hypothyroidism(16.3%). We found 1087 (6.1%) patients with hyperthyroidism (67.7% women) and subclinical hyperthyroidism observed in 92 of 1087 hyperthyroidism (8.4%). Thyroid nodularity was seen in 944 (5.2%) patients (807 women in 85.5%). Thyroidectomy was done in 776(4.3%). Differentiated thyroid cancer was seen in 77 (0.4%). Conclusion: Hypothyroidism was double that of hyperthyroidism. Cross-sectional community-based study can give more information on the epidemiology of thyroid disease in Iraq.Iodine status needed studded in the future. Keywords: Hyperthyroidism, hypothyroidism,autoimmune thyroid disease, Iraq.

Background: Weight gain is one of the most important hypothyroidism-related concerns among patients with hypothyroidism. However, not as expected, thyroxine replacement does not necessarily result in body weight (BWT) reduction among those patients. The study aimed to assess the patterns of BWT changes through time in patients with hypothyroidism. Method: A retrospective database study from Faiha Specialized Diabetes, Endocrine, and Metabolism Center. A total of 346 adult patients with hypothyroidism, 192 newly diagnosed and 154 known, who had 1 visit every 3 months, 5 visits per one year. From those patients, 116 new and 69 known had completd 9 visits per two years. Each visit involved thyroid-stimulating hormone (TSH) and BWT measurements. Patients with chronic liver or renal disease, diabetes mellitus, thyroid cancer, or other malignancies, pregnancy, and on steroid or hormonal therapies were excluded. The patients were further subdivided based on average TSH levels into controlled (TSH≤4.2 μIU/mL) and uncontrolled TSH>4.2 μIU/mL. Repeated measures ANOVA with a Greenhouse-Geisser correction and Post hoc tests using the Bonferroni correction were used to evaluate BWT changes through the study. Results: Both newly diagnosed and known hypothyroidism, over one and two years, in patients with average TSH>4.2 μIU/mL, BWT increased significantly through visits. For newly diagnosed over one year, (F(2.41, 321.60) = 3.28, p = 0.03), and mean BWT increase = 1.4 ± 0.38 kg from 3rd to 12th month visits, (p = 0.004). For newly diagnosed over two years, (F(3.10, 263.89) = 9.08, P < 0.0005), mean BWT increase = 3.02 ± 0.77 kg from 3rd to 24th month visits, (p = 0.007). And for known hypothyroidism over one year, (F(2.56, 187.47) = 7.11, p = 0.0003), mean BWT increase = 1.97 ± 0.64 kg at 12th month visit, and over two years, (F(2.35, 77.56) = 4.67, P = 0.009), mean BWT increase = 3.78 ± 1.26 kg at 24th month visit. While in all other patients with average TSH≤4.2 μIU/mL, the BWT changed non-significantly through visits. For newly diagnosed patients over one year and two years (p = 0.10, 0.34 respectively), and known patients over one year and two years (p = 0.47, 0.34 respectively). Conclusion: In contrary to what is believed, adequate treatment with thyroxine does not associate with weight reduction. Instead, either the patient kept on the same weight or continued to gain more weight.