High Prevalence Of Subclinical Hypothyroidism Research Articles

High Prevalence of Subclinical Hypothyroidism in Chronic Kidney Disease patients caused by Diabetes and Hypertension at Nephrology & Urology Minia University Hospital

High Prevalence of Subclinical Hypothyroidism in Chronic Kidney Disease patients caused by Diabetes and Hypertension at Nephrology & Urology Minia University Hospital

Prevalence of Subclinical Hypothyroidism among Pregnant Women

Background: Some studies have associated subclinical hypothyroidism with obstetric complications such as preeclampsia, preterm birth, and placental abruption. Objective: To investigate the prevalence of subclinical hypothyroidism in patients with preeclampsia and normotensive pregnant women ending their pregnancy at Enrique Garces Hospital. Methods: This is a descriptive cross-sectional study conducted between February 2020 and 2022. The study included pregnant women between 20 and 35 years of age, with singleton pregnancies in the third trimester. The women were in labor and diagnosed with subclinical hypothyroidism and preeclampsia in the current pregnancy. The women underwent blood sampling. Also, the thyroid stimulating hormone (TSH) and free thyroxine (fT4) levels were measured by chemiluminescence. Results: A total of 639 women were evaluated; Among these women 509 (79.66%) were normotensive, 137 (26.92%) had subclinical hypothyroidism, and 372 (73.08%) did not have subclinical hypothyroidism, 130 (20.34%) had preeclampsia, 34 (26.15%) of them with subclinical hypothyroidism and 96 (73.85%) not having subclinical hypothyroidism. The overall prevalence of subclinical hypothyroidism was 26.76%. In the normotensive group the prevalence of subclinical hypothyroidism was 0.2691 with a 95 % CI (0.2306, 0.3076) and in the preeclampsia group it was 0.2615 with a 95 % CI (0.1859, 0.3370). Conclusions: A high prevalence of subclinical hypothyroidism was identified among pregnant women, which often goes undiagnosed in the early stages of pregnancy due to the lack of thyroid profile screening protocols for all pregnant women. Regarding the TSH cut-off levels 3mIUI/L there was no statistically significant difference of subclinical hypothyroidism among normotensive pregnant women and preeclampsia women, as literature suggests that TSH levels above 4mIU/L are associated with hypertensive diseases

Dietary Iodine Intake and Pattern of Thyroid Disorders among the Ethnic Population of Eastern Himalayan Ranges of India

Background and Aim: In the present study, dietary iodine intake and thyroid functioning were assessed among the ethnic adolescent group of Eastern Himalayan range with the hypothesis that insufficient iodine intake negatively affects normal thyroid functions. The aim of the study was to see the prevalence and relation between iodine deficiency and thyroid functioning. Materials and Methods: It is a hospital-based study conducted in the health care facilities of Dima Hasao district, Assam, from April 2021 to March 2022. The study included 821 subjects including both male and female of adolescent age group (10–19 years). The thyroid profiling, anti-Thyroid peroxidase antibody (anti-TPO Ab), and urinary iodine content (UIC) were carried out. Thyroid hormone analysis was carried out by chemiluminescence assay. The anti-TPO Ab was determined using the electrochemiluminescence immunoassay analyzer. The dietary iodine intake was measured on the basis of UIC and was determined by arsenic cerium catalytic spectrophotometry method by the Sandell-Kolthoff reaction. Results: The prevalence of thyroid disorder among the studied population was found to be 13.8%. Among different conditions of thyroid disorders, hypothyroidism was present in 10.6% and hyperthyroidism in 3.13%. 4.18% had elevated anti-TPO Ab. Among the euthyroid subjects with different thyroid disorders, 1.48% and 21% had anti-TPO Ab positivity, respectively. The median UIC was 99.97 µg/l. 25.78% of the population had iodine deficiency. Thyroid disorders were common in subjects with iodine deficiency (61.34%) than iodine sufficient subjects (20%). Conclusion: The work was an attempt to demonstrate how the dietary iodine intake influences thyroid functioning among the adolescent ethnic population of Eastern Himalayas which is manifested as high prevalence of subclinical hypothyroidism with iodine deficiency. The work underscores region specific recommendation on iodine supplementation for populations living in geographically remote locations.

Prevalence and Factors Associated with Subclinical Hypothyroidism in Major Depressive Disorder Patients with Dyslipidemia.

Major depressive disorder (MDD) is a common psychiatric disorder with a high prevalence of comorbidity with subclinical hypothyroidism. The aim of this study was to investigate the prevalence and factors influencing the comorbidity of subclinical hypothyroidism in patients with dyslipidemic MDD who were hospitalized for the first time in a Chinese population. The study incorporated 708 first-time hospitalized MDD patients, all with dyslipidemia. Data collection encompassed socio-demographic information, blood pressure, fasting blood glucose (FBG), lipid, and thyroid hormone levels. Participants were evaluated using the Hamilton Depression Scale (HAMD), Hamilton Anxiety Scale (HAMA), and Positive Symptom Subscale (PSS). The prevalence of subclinical hypothyroidism in dyslipidemic MDD patients with the first hospitalization was 39.97%. The course of the disease, age at onset, HAMA score, and low-density lipoprotein cholesterol (LDL-C) were risk factors for subclinical hypothyroidism in dyslipidemic MDD patients. The course of disease, age at onset, HAMA score, HAMD score, FBG, and systolic blood pressure (SBP) levels were observed to influence serum Thyroid Stimulating Hormone (TSH) levels. MDD patients with dyslipidemia have a high prevalence of subclinical hypothyroidism, and the outcome is associated with anxiety, fasting glucose, and lipids. This study provides a potential biomarker for the identification of co-morbid subclinical hypothyroidism in MDD patients with dyslipidaemia.

Evaluation of Interactions Between Thyroid Dysfunction in End-Stage Renal Disease Patients: A Cross-Sectional Study.

Thyroid hormones have a very crucial role in the regulation of metabolism, synthesis of proteins, development, and influencing functions of various other hormones in the human body. While both kidneys play an essential role in the metabolism of thyroid hormone by conversion of thyroxine (T4) to triiodothyronine (T3). In patients with chronic renal failure, frequent abnormal thyroid functions are observed. To evaluate thyroid function in patients of chronic renal failure and to find out their correlation with the severity of the disease. A total of 192 patients were selected for the study after applying inclusion and exclusion criteria. A thyroid function test was done in all enrolled subjects. Serum estimation of T3, T4, and thyroid stimulating hormone (TSH) was done by the chemiluminescent immunoassay (CLIA) method, urea was estimated by the diacetyl monoxide method (DAM, Method), and serum creatinine by Jaffe's method. The results were evaluated for age, sex, and estimated glomerular filtration rate (eGFR) of the patients in view of thyroid dysfunction. Of all 192 patients enrolled in the study, 124 (64.58%) were male and 68 (35.41%) were females. The observed male-to-female ratio was 1.93:1.18. The mean age of the study group (mean +/- standard deviation, SD) in males was 42+/-18 and in females 38+/-11 years (p value = 0.258). Significant reductions of serum T3, T4, and elevation of TSH were noted in both sexes. A reduced level of T3 was observed in 38.54% (42 males and 32 females) patients, reduced T4 in 34.37% (42 males and 22 females) patients, and subclinical hypothyroidism (SCH) in 16.7% (12 males and 20 females) patients. Biochemical overt hypothyroidism was noted in 7.29% (six males and eight females) of patients. Chronic renal failure is a condition of thyroid hypofunction. A higher prevalence of SCH and clinical hypothyroidism is reported here in chronic kidney disease (CKD) patients. The severity of thyroid hypofunction increases with a progressive reduction in eGFR. Hypothyroidism in CKD patients may be due to different onset mechanisms other than anti-thyroid antibodies.

Is There a Relation between Hypothyroidism and Polycystic Ovary Syndrome and its Metabolic Components?

Polycystic Ovary Syndrome (PCOS) is one of the most prevalent endocrine illnesses among women of reproductive age. PCOS is linked to several issues, including hypothyroidism and metabolic disorders. Hypothyroidism seems to be associated with insulin resistance and other metabolic factors. The present study aimed to evaluate the incidence of hypothyroidism in PCOS patients and compare it with healthy controls. Moreover, the impact of hypothyroidism on metabolic parameters, particularly insulin resistance, in PCOS patients was also examined. This study was conducted on 41 women with PCOS and 41 healthy women as controls from March to November, 2018. Participants' demographic information was recorded. Thyroid function tests were compared between the case and control groups. Metabolic parameters were examined between hypothyroid and euthyroid PCOS individuals. Patients with PCOS displayed a greater incidence of hypothyroidism and a higher level of anti-thyroid peroxidase antibodies compared to the control group. High-density lipoprotein (HDL) cholesterol was substantially higher in hypothyroid PCOS patients than in non-hypothyroid individuals, although no significant changes were observed in other metabolic markers. Hypothyroid PCOS patients and those without hypothyroidism did not differ in insulin resistance. Autoimmunity was not found to be linked to a higher risk of metabolic problems. As evidenced by the results of this study, PCOS patients had a higher prevalence of subclinical hypothyroidism than healthy subjects. Metabolic indicators, except for HDL, were not different between PCOS patients with and without hypothyroidism.

Association between thyroid function and disease severity in restless legs syndrome.

BackgroundRestless Legs Syndrome (RLS) is a common neurological disorder. Growing evidence shows that dopaminergic dysfunction and iron deficiency are associated with the pathogenesis of RLS. Additionally, the dopaminergic system is linked with the hypothalamic-pituitary-thyroid (HPT) axis. Thus, the current study aimed to compare thyroid function between RLS patients and healthy subjects and investigate the associations with clinical characteristics of RLS.MethodsSerum levels of thyroid hormones were investigated in 102 first-episode drug-naïve RLS patients and 80 matched healthy controls (HCs). Baseline data and clinical characteristics were performed by professional personnel. In addition, multivariate regression was used to analyze the relationship between thyroid function and RLS.ResultsCompared with control group, RLS patients had significantly higher serum thyroid-stimulating hormone (TSH) levels (p < 0.001), and higher prevalence of subclinical hypothyroidism [Odds ratio (OR) 8.00; 95% confidence interval (CI) = 3.50–18.30; p < 0.001]. The Subclinical hypothyroidism rate (47.1 vs. 10%, p < 0.001) in RLS patients was higher than the HCs group. Regression analysis revealed that serum TSH (OR = 1.77; 95% CI = 1.41–2.23; p < 0.001) was independently associated with RLS. There was a statistically significant positive correlation between TSH and the Pittsburgh sleep quality index (PSQI) scores (r = 0.728, p < 0.001), and the International Restless Legs Scales (IRLS) points (r = 0.627, p < 0.001). Spearman correlation analysis showed that FT3 was positive correlated with HAMA14 score (r = 0.239, p = 0.015). In addition, compared with the good-sleeper group, poor-sleeper patients had significantly higher serum TSH levels (p < 0.001).ConclusionSerum levels of TSH and the prevalence of subclinical hypothyroidism were higher in RLS patients, indicating the imbalance between thyroid hormones (TH) and the dopaminergic system may contribute to the development of primary RLS. Additionally, the TH axis may influence the quality of sleep in RLS patients.

Transient high thyroid stimulating hormone and hypothyroidism incidence during follow up of subclinical hypothyroidism.

Objectives. Given the high prevalence of subclinical hypothyroidism (SCH), defined as high thyroid stimulating hormone (TSH) and normal free thyroxine (FT4), and uncertainty on treatment, one of the major challenges in clinical practice is whether to initiate the treatment for SCH or to keep the patients under surveillance. There is no published study that has identified predictors of short-term changes in thyroid status amongst patients with mild elevation of TSH (4.5-10 mIU/L). Subjects and Results. A cohort study was conducted on patients with SCH detected through a general population screening program, who were followed for six months. This project identified factors predicting progression to hypothyroid status, persistent SCH and transient cases. A total of 656 participants joined the study (431 controls and 225 were patients with SCH). A part of participants (12.2%) developed biochemical hypothyroidism during the follow-up, while 73.8% of the subjects became euthyroid and the remained ones (13.4%) stayed in the SCH status. The incidence of overt hypothyroidism for participants with TSH above 6.9 mIU/L was 36.7%, with incidence of 42.3% for females. Anti-thyroid peroxidase antibodies (TPO) positivity is an important predictor of development of hypothyroidism; however, it could be also positive due to transient thyroiditis. Conclusions. It can be concluded that females with TSH above 6.9 mIU/L, particularly those with free triiodothyronine (FT3) and FT4 in the lower half of the reference range, are more likely to develop biochemical hypothyroidism. Therefore, it is recommended to give them a trial of levothyroxine replacement. It is also recommended to repeat TSH after six months for male subjects and participants with baseline TSH equal or less than 6.9 mIU/L.

A clinical study on prevalence of subclinical hypothyroidism in patients with cholelithiasis in a tertiary care center in South India

Background: Gall stones are the most common biliary pathology. Hypothyroidism has been shown to promote gall stone formation and prevalence of clinical hypothyroidism in patients with cholelithiasis is extensively studied. This study aimed to find the prevalence of subclinical hypothyroidism in patients with cholelithiasis.Methods: A prospective study on 94 patients was carried in Saveetha medical college and hospital, Tamil Nadu, India between March 2017 and June 2019. All patients underwent imaging studies for confirmation of gall stone disease and serum FT3, FT4 and TSH estimation done.Results: Out of 94 patients, 47 patients were between 30-50 years (50%). 30 (31.9%) patients were hypothyroid and 64 (68.1%) were euthyroid. Among the hypothyroid patients, 3 (3.2%) had clinical hypothyroidism and 27 (28.7%) had subclinical hypothyroidism. 80 (85.1%) patients had multiple calculi and 14 (14.9%) of patients had single calculus.Conclusions: Majority of patients were in the age group of 30-50 years with females 53.2% and males 46.8%. Hypothyroidism was diagnosed in nearly one-third of patients in our study with a high prevalence of subclinical hypothyroidism (28.7%). No significant correlation was found with respect to age, gender, number of gall stones to serum TSH levels.

Prevalence of Thyroid Dysfunction in Patients With Hepatitis C.

Introduction: Hepatitis C has been linked to a multitude of autoimmune disorders, including rheumatoid arthritis, thyroid disease, cryoglobulinemia, immune thrombocytopenic purpura, systemic lupus erythematosus, and Sjögren’s syndrome. In this study, efforts were made to draw a parallel between hepatitis C and thyroid dysfunction.Methods: This case-control study was conducted between June 2020 and March 2021 in the gastroenterology ward of a tertiary care hospital. We enrolled 300 hepatitis C-positive patients in this study through consecutive convenient non-probability sampling. In addition, 300 patients without hepatitis C were signed up as a control group. Blood sampling for thyroid function tests was conducted via phlebotomy from the cubital vein and the samples were dispatched to the laboratory for further study.Results: The control group had more euthyroid patients as compared to patients with hepatitis C (74.6% vs. 89.6%; p-value: <0.01). Hepatitis C patients had more cases of primary hypothyroidism compared to the control group (10.6% vs. 4.6%; p-value: 0.005). Similarly, patients with hepatitis C had a higher prevalence of subclinical hypothyroidism compared to the control group (6.0% vs. 1.3%; p-value: 0.002).Conclusion: Hepatitis C patients have a high frequency of thyroid dysfunction, particularly primary hypothyroidism and subclinical hypothyroidism. Therefore, it is important to ensure regular screening for early prognosis and avoid treatment modalities that are known to cause thyroid abnormalities.

Prevalence of Thyroid Dysfunction in Newly Diagnosed Rheumatoid Arthritis Patients.

Introduction: Rheumatoid arthritis (RA) is associated with various autoimmune disorders, including thyroid dysfunction. However, local data studying the prevalence of thyroid dysfunction in newly diagnosed RA patients are limited.Methods: This case-control study was conducted between January 2019 to December 2020 in the Internal Medicine Department of Liaquat University of Medical and Health Sciences. The study group of 400 newly diagnosed patients with RA was enrolled in the study. Another 400 patients without the diagnosis of RA, adjusted for age and gender, were enrolled in the study as a control group and their thyroid functions were compared.Results: Patients with RA had more participants with thyroid dysfunction compared to patients without RA (25.25% vs. 11.5%; p-value: 0.00001). In addition, more patients with RA had concomitant primary hypothyroidism compared to the control group (7.75% vs. 2.5%; p-value: 0.0007). Furthermore, patients with RA also had a higher prevalence of subclinical hypothyroidism (13.0% vs. 5.5%; p-value: 0.0002).Conclusion: Our study indicates that thyroid dysfunction is significantly prevalent in patients with RA. Based on our findings, it is suggested that management and follow-up of RA patients should include the screening of thyroid auto-antibodies and thyroid dysfunction.

Subclinical Hypothyroidism (SCH) in the First Trimester of Pregnancy: A Cross-Sectional Study at a Tertiary Care Hospital

Aim: To evaluate and assess the prevalence along with its related complications of subclinical hypothyroidism in pregnant ladies during the 1st trimester of pregnancy in Pakistani population. Study design: Cross sectional study Place and duration of study: Department of Medicine, Unit-1 of Lahore General Hospital, Lahore, Pakistan from 11th February 2019 to 29th December 2019. Methodology: Four hundred and fifty seven pregnant women with a gestational age up to 12th week with an age group between 18-45 years were included in this study. Blood samples were collected for free triiodothyronine, free thyroxine and thyroid stimulating hormone levels. Patients were regularly followed at an interval of 4 weeks for their entire pregnancy period. Adverse events and complications were noted. Results: One hundred and sixty nine subjects had TSH levels above the normal range i.e., 4.6-10mIU/L. 288 subjects were having TSH below 4 mIU/L levels. The overall prevalence of subclinical hypothyroidism (SCH) was found to be 37% in pregnant women during their first trimester of pregnancy. Pregnant women having subclinical hypothyroidism (SCH) were having higher risks of loss of pregnancy, abruptio placentae and neonatal death rates as compared to euthyroid pregnant women. Conclusion: Higher prevalence of subclinical hypothyroidism (SCH) in the first trimester of pregnancy indicates that these women are at increased risks of loss of pregnancy, placental abruption and neonatal death as compared to euthyroid pregnant women. Keywords: First trimester; pregnancy; subclinical hypothyroidism

Assessment of Thyroid Function in COVID-19 Patients

Since the egression of the coronavirus 2019 (COVID-19) disease, more than 200 countries and areas around the world were affected. To the present, it is not clear whether COVID-19 has effects on thyroid function or not. The aim of the current study was to assess thyroid function in COVID-19 patients with history of thyroid disease and those without such a history and to find out the thyroid disturbance in both groups. The present study involved 86 COVID-19 affected patients admitted BioLab and the Balsam Hospital, Erbil/ Iraq between January and April 2021. Confirmation of COVID-19 infection all patients by Reverse Transcriptase Polymerase Chain Reaction (RT-PCR) of nasopharyngeal swabs. Thyroid hormones, and thyrotropin (TSH) level was analyzed and assessed. Most of the participants (88.4%) had normal T3 level, and there was no significant difference (p = 0.069) between those with normal T3, TPO and with no history of thyroid disease and those with such a history and/or high TPO. T4 levels of the participants with no history of thyroid disease and normal TPO did not differ significantly (p =0.725) from those with a history of thyroid disease and/or high TPO. Regarding the level of TSH, there was significant difference (p&lt;0.001) between the two fore mentioned groups. There is high prevalence of subclinical hypothyroidism in the COVID-19 patients with family history of thyroid disease and high TPO antibody level.

Altered Thyroid Function amongst the Infertile Insulin Resistant Women with Polycystic Ovarian Syndrome

Background: Polycystic ovarian syndrome (PCOS) is a hormonal disorder common among women of the child-bearing age. Likewise, women with PCOS are more likely to be obese or overweight, which may be due to their higher Insulin resistance and TSH levels.&#x0D; Aim: The study's objectives were to assess the prevalence of subclinical hypothyroidism in infertile PCOS, distribution of insulin resistant in PCOS women with subclinical hypothyroidism, and the efficacy of Metformin treatment in these women.&#x0D; Methods: It was a single-center study which included all infertile patients who visited the Department of Obstetrics and Gynecology at a Karachi hospital between January 2019 and September 2019. The infertile PCOS patients were then divided into two groups: Group A (Insulin Resistant with Subclinical Hypothyroidism) and Group B. (Non-Insulin Resistant with Subclinical Hypothyroidism). Following the written consent, both the treatment groups received Metformin 500mg T.D. for three months.&#x0D; Results: The infertile PCOS patients showed a higher prevalence of subclinical hypothyroidism. Insulin resistance was found to be 63.3% among subclinical hypothyroid PCOS women. Finally, three months of Metformin treatment resulted in a significant reduction in TSH levels in Insulin resistant PCOS women.&#x0D; Conclusion: We identified a positive link between TSH levels and insulin resistance in PCOS women, both in terms of incidence and treatment.

Evaluation of Thyroid Function and Its Relationship With Metabolic Parameters in Indian Adolescents With PCOS

Background: Women with PCOS have high insulin resistance and a higher prevalence of raised TSH levels. Thyroid dysfunction can lead to the alterations in lipid and metabolic parameters. There is a very little data regarding the relationship between TSH and indices of insulin resistance in Indian adolescents with PCOS. Aim of Study: To assess the status of thyroid function and its impact on biochemical parameters and cardiovascular (CV) risk factors in Indian Adolescents with PCOS. Methods: Study group was 130 adolescents aged between 13 to 19 years, recently diagnosed with PCOS as per Revised Rotterdam criteria and a control group of 75 age matched, healthy, non PCOS females. Participants were subjected to an elaborate clinical, anthropometric and biochemical assessment. Hormonal analysis included serum FT3, FT4, TSH, anti-TPO antibody, LH, FSH, prolactin, free testosterone, 17 OH progesterone, Lipid profile. Fasting plasma glucose and Insulin were used to calculate HOMA-IR. Statistical analysis was done by SPSS. P value of <0.005 was significant. Results: Mean age of the subjects was 15.9 ± 3.1 years. Mean level of TSH was higher in PCOS group than in controls (4.1 ± 3.1 vs 2.8 ± 1.9; p-<0.001). There was significantly higher prevalence of subclinical hypothyroidism (SCH) (19.2%vs 6.7%;p-0.01), Anti TPO antibody titre (18.6 vs 4.7%; p,0.01) and goitre (14.1%vs 3.2%; p - 0.02) in PCOS subjects compared to controls. BMI and Systolic BP were higher in PCOS with SCH. Free testosterone (p-0.002), HOMA-IR (p- 0.03) and dyslipidaemia (p < 0.01) were significantly higher in PCOS subjects with SCH as compared to both euthyroid PCOS and euthyroid controls. Discussion: 50-70% women with PCOS, have been reported to have insulin resistance and hyperinsulinemia and are at a higher risk for developing metabolic and CV diseases. Literature supports the high prevalence of SCH/thyroid autoimmunity in PCOS. In this study we have found that Indian adolescents with PCOS have a high prevalence of SCH. Also we have observed significant changes in insulin resistance indices in PCOS subjects with SCH as compared to those with normal thyroid functions. The association between TSH level and insulin resistance indices is complex and one probable mechanism is that the hypothyroidism leads to increase in adiposity and pro inflammatory markers. This unique interplay of PCOS, adiposity, thyroid dysfunction and autoimmunity forms a complex pathophysiological pathway which leads to the potentiation of insulin resistance thereby resulting in a further increase in metabolic and CV risk in women with PCOS. Conclusion: There is a high prevalence of SCH in Indian Adolescents girls with PCOS and it is associated with significant changes in insulin resistance indices, which may increase the risk of metabolic and CV disorders in these already vulnerable young subjects.

Thyroid Function, Urinary Iodine, and Thyroid Antibody Status Among the Tribal Population of Kashmir Valley: Data From Endemic Zone of a Sub-Himalayan Region.

Background: There are scarce data on the prevalence of thyroid disorders and urinary iodine status among tribal populations of India, with no reported data from Kashmir valley.Objectives: To estimate the prevalence of thyroid disorders and evaluate urinary iodine concentration (UIC) and thyroid autoantibody status among Gujjar and Bakerwal tribes of Kashmir valley.Methods: This cross-sectional study recruited tribal subjects using multistage cluster sampling from 5 out of 22 districts of Jammu and Kashmir (J&K). Using a predesigned questionnaire, the details of past or current medical history and drug intake, including thyroid hormone medication etc. were recorded after obtaining an informed consent. Examination included anthropometry (height, weight, waist circumference), blood pressure measurement, and relevant general physical examination focusing on goiter palpation, while as laboratory assessment included estimation of serum thyroid hormone levels, antithyroid peroxidase antibody (anti-TPO Ab), and urinary iodine concentration.Results: A total of 763 subjects (56.4% women and 43.6% men) with a mean(±SD) age of 39.46 (±17.51) ranging from 10 to 85 years and mean(±SD) body mass index (BMI) of 21.28 (±4.16) kg/m2 were studied. Goiter was detected in 6.8%, while 33.2% subjects had some form of thyroid dysfunction (including 24.1% subclinical and 6.8% overt hypothyroidism). Subclinical and overt hyperthyroidism were observed in 1.3 and 0.9% of cases, respectively. Anti-TPO Ab was elevated in 13.6%, while the median [interquartile range (IQR)] for UIC was 154.50 (135) μg/L [156.13 (134) μg/L in men and 147.26 (136) μg/L in women]. A negative correlation was observed between UIC and anti-TPO Ab (r = −0.087, P = <0.05).Conclusion: These novel data on iodine and thyroid status among a tribal population of India generally inhabiting in remote sub-Himalayan belts demonstrate high prevalence of subclinical hypothyroidism (SCH) with persistent iodine deficiency. These preliminary data may warrant large well-designed studies to carry out comprehensive assessment of the problem in this high-risk and marginalized population.

Status of Thyroid Function among Patients of National Medical College and Teaching Hospital

Background: Thyroid dysfunction is one of the most common endocrinopathies after Diabetes Mellitus. Thyroid dysfunction is defined as the alteration in Thyroid Stimulating Hormone (TSH) with normal or abnormal thyroid hormones. Nepalese population have a high risk for thyroid dysfunction with a high prevalence of iodine deficiency.&#x0D; Objective: To study the prevalence of thyroid dysfunction among the patients visiting National Medical College, Birgunj, Nepal for checkup and suggested to assess thyroid function.&#x0D; Materials and Methods: The hospital-based study was conducted in Central Laboratory, National Medical College and Teaching Hospital (NMCTH), Birgunj in collaboration with the Department of Biochemistry. Total 7040 patients visiting Central Laboratory for thyroid function assessment were included in the study between July 2017 to December 2019. The venous blood sample was collected and serum-free triiodothyronine(fT3), free tetraiodothyronine(fT4) and thyroid stimulating hormone (TSH) was estimated by Chemiluminescence Immunoassay (CLIA) method using Access 2 Beckman Coulter analyser. (Beckman Coulter Inc., California, USA).&#x0D; Results: Among 7040 subjects under study, 2138(30%) were found to have thyroid dysfunction with 13% having subclinical hypothyroidism, about 8% of overt hypothyroidism, about 4% with subclinical hyperthyroidism and 5% with overt hyperthyroidism. Majority of the thyroid dysfunction study group belonged to the 16-30 years age group followed by 31-45 years. Mean±SE for TSH, fT4 and fT3 levels show statistically significant differences in different thyroid disorders.&#x0D; Conclusion: The study revealed a high prevalence of subclinical hypothyroidism followed by overt hypothyroidism among the patients visiting National Medical College and Teaching Hospital, Birgunj, Nepal. A higher percentage of females were found to have thyroid dysfunction compared to male.

Lack of Association between Poor Glycemic Control in T2DM and Subclinical Hypothyroidism.

Background Hypothyroidism is a highly prevalent and multifactorial disorder and has been implicated in the causation of dyslipidemia, dermatological diseases, atherosclerosis, and myocardial dysfunction, as well as endothelial dysfunction. The relationship between subclinical hypothyroidism and type 2 diabetes mellitus is not well established. In the present study, we attempt to find out the prevalence of subclinical hypothyroidism in type 2 diabetes mellitus and its association with glycemic control. Materials and Methods This was an observational study in which 205 consecutive patients of T2DM visiting the outpatient department of medicine were recruited. Serum TSH, free thyroxine, free triiodothyronine, and lipid profile, as well as HbA1c assays, were done in the study participants, and they were categorized into three groups by HbA1c: <7%, 7–9%, and >9%. Results There is a high prevalence of subclinical hypothyroidism in type 2 DM patients. Mean HbA1c in diabetics without SCH was 7.89%, whereas it was 8.33% in diabetics with SCH. This difference was statistically not significant. TSH was not found to be significantly associated with HbA1c. Conclusion High prevalence of SCH in T2DM patients suggests that there is a need for regular follow-up to check the progression of SCH to overt hypothyroidism. High serum TSH is not a predictor of poor glycemic control.

High Prevalence of Subclinical Hypothyroidism and TPO Antibody Positivity Among Women with a History of Miscarriage or Infertility

High Prevalence of Subclinical Hypothyroidism and TPO Antibody Positivity Among Women with a History of Miscarriage or Infertility

Association between subclinical hypothyroidism and metabolic disorders: A retrospective chart review study in an emerging university hospital.

BackgroundSubclinical hypothyroidism is defined as an increase in serum levels of Thyroid Stimulating Hormone (TSH) above the normal range, without alteration of total T4 concentrations that is reported to have association with various metabolic conditions. The study aimed to investigate any association between subclinical hypothyroidism and metabolic disorders in Al Kharj city.MethodsThis is a cross‐sectional study that included review of patients’ charts from prince Sattam bin Abdul‐Aziz University, Al Kharj, Saudi Arabia, from August 1 to November 30, 2016. Data were analyzed with SPSS version 21. Descriptive statistics were obtained as frequencies. Pearson chi‐square analysis was used to assess any differences between disease status and study variables. P‐value < 0.05 was considered significant.ResultsThe mean age was 30.65 ± 13.3 with a female predominance. The average BMI was 29.5 ± 7.71; 46 (11.5%) had hypertension, 52 (46.8%) had diabetes, 173 (44%) had anemia, and 192 (56%) had vitamin D deficiency. Due to increased TSH levels, male gender had higher prevalence of subclinical hypothyroidism with P‐value < 0.001 and 0.011, respectively.ConclusionSubclinical hypothyroidism is a significant topic worldwide whose prevalence is rising. In this study, we could not find any significant association between subclinical hypothyroidism and metabolic disorder. Further longitudinal studies with large sample size are needed to study this association.