scholarly journals Maternal TSH levels at first trimester and subsequent spontaneous miscarriage: a nested case–control study

2019 ◽  
Vol 8 (9) ◽  
pp. 1288-1293 ◽  
Author(s):  
Jiashu Li ◽  
Aihua Liu ◽  
Haixia Liu ◽  
Chenyan Li ◽  
Weiwei Wang ◽  
...  
Keyword(s):  
Case Control Study ◽  
First Trimester ◽  
Case Control ◽  
Thyroid Stimulating Hormone ◽  
Free Thyroxine ◽  
Thyroid Peroxidase ◽  
Spontaneous Miscarriage ◽  
Control Study ◽  
Tsh Levels ◽  
Stimulating Hormone

Thyroid dysfunction is a frequently found endocrine disorder among reproductively aged women. Subclinical hypothyroidism is the most common condition of thyroid disorders during pregnancy and is defined as manifesting a thyroid-stimulating hormone concentration exceeding the trimester-specific reference value, with a normal free thyroxine concentration. Here, we evaluated the prospective association between spontaneous miscarriage and first-trimester thyroid function. We conducted a case–control study (421 cases and 1684 controls) that was nested. Thyroid-stimulating hormone (TSH), free thyroxine (FT4), thyroid-peroxidase antibody (TPOAb) and thyroglobulin antibody (TgAb) status were measured. We found that higher TSH was related to spontaneous miscarriage (OR 1.21; 95% CI, 1.13–1.30, P < 0.001). Compared with women with TSH levels of 0.4–<2.5 mIU/L, the risk of miscarriage was increased in women with TSH levels of 2.5–<4.87 mIU/L (OR 1.47; 95% CI, 1.16–1.87) and TSH greater than 4.87 mIU/L (OR 1.97; 95% CI, 1.22–3.18). After controlling for the confounding factor, TPOAb positivity status and FT4, the results were similar. The present study showed that higher TSH was associated with miscarriage in early pregnancy. In fact, TSH levels between 2.5 and 4.87 mIU/L increased the risk for miscarriage, with TSH greater than 4.87 mIU/L increasing the risk even further.

scholarly journals Goitre and iodine deficiency in Afghanistan: a case—control study

2006 ◽  
Vol 95 (1) ◽  
pp. 196-203 ◽  
Author(s):  
Odile Oberlin ◽  
Emmanuelle Plantin-Carrenard ◽  
Odile Rigal ◽  
Caroline Wilkinson
Keyword(s):  
Case Control Study ◽  
Subsequent Development ◽  
Case Control ◽  
Thyroid Stimulating Hormone ◽  
Childbearing Age ◽  
Iodised Salt ◽  
The Difference ◽  
Goitre Prevalence ◽  
Control Study ◽  
Tsh Levels

I deficiency is the leading cause of preventable mental retardation. A number of surveys in Afghanistan show goitre prevalence rates more than 20% amongst children and women. Access to iodised salt remains low, with disparate coverage by region, despite the recent implementation of a national salt iodisation programme. The objectives were to identify whether the presence of goitre is a satisfactory marker of I deficiency and to examine the relationship between goitre and thyroid function. A case–control study was carried out in children and women of childbearing age, stratified on the presence of goitre. Adequate levels of urinary I were observed in 6·8% of all the subjects, and amongst the subjects without goitre, this figure was only 9%. The presence of goitre was significantly associated with severe urinary I deficiency; however, the difference between the cases and controls was not as great as expected. An association between the presence of goitre and elevated thyroid-stimulating hormone (TSH) levels was observed, but 14% of the children without palpable goitre also showed abnormal TSH levels.Given that the majority of subjects showed some degree of I deficiency and that children without goitre may have elevated TSH levels, the absence of goitre is an insufficient indicator to determine adequate I status. The risk of subsequent development of goitre, in the currently non-goitre population, is elevated. This suggests that short-term I supplementation should be considered independently of the presence of goitre or urinary I level, until the access to and consumption of iodised salt is generalised.

scholarly journals Characteristic of Anaemia in Hypothyroid Pregnant Females: A Case-control Study

2020 ◽  
Author(s):  
Salamah Parveen Imteyaz ◽  
Bijli Nanda ◽  
Manisha Jindal ◽  
Mohammad Jaseem Hassan
Keyword(s):  
Case Control Study ◽  
Complete Blood Count ◽  
Case Control ◽  
Thyroid Stimulating Hormone ◽  
Common Type ◽  
P Value ◽  
Pregnant Females ◽  
The Mean ◽  
Control Study ◽  
Stimulating Hormone

Introduction: Anaemia is the most prevalent haematological abnormalities associated with thyroid disorders and it is often the first sign of hypothyroidism. Pregnancy is frequently associated with anaemia; most commonly iron deficiency anaemia, followed by dimorphic anaemia. Pregnancy complicated by the development of hypothyroidism could be further associated with a higher incidence of anaemia. Aim: To determine the incidence and characteristic of anaemia in pregnancy associated with hypothyroidism. Materials and Methods: This case-control study was conducted in a Medical college hospital during January 2015 to January 2016. A total of 272 pregnant women were enrolled in the study by random sampling of all pregnant females attending Out Patient Department of our hospital. Serum Thyroid Stimulating Hormone (TSH) level was used to detect thyroid function abnormalities. Complete Blood count was done. Peripheral blood smear was stained by Leishman stain and subsequently studied under microscope for morphological classification of anaemia. Anaemia was further classified according to the Haemoglobin (Hb) level into mild, moderate and severe anaemia. Unpaired t-test, Pearson’s correlation test and chi-square test have been used in the study for analysis and comparison of various parametres. p-value <0.05 considered level of significance. Results: Out of total of 272 subjects selected for the study, 207 were euthyroid and 65 were hypothyroid. Of the 65 hypothyroid subjects, 19 were in the first trimester, 25 in the second trimester and 21 were in the third trimester. The mean TSH of euthyroid group was 2.49±1.35 mIU/L and hypothyroid group was 6.27±3.6 mIU/L (p-value 0.0001). Mean Hb of Euthyroid was 10.16 g/dL, while mean Hb of hypothyroid subjects was 8.92 g/dL and this difference was significant (p<0.001). A total of 191 (70.22%) out of 272 pregnant subject were found to be anaemic. About 131 (63.28%) out of 207 of euthyroid patients were anaemic, while 92.31% of hypothyroid patients (60 out of 65) showed anaemia. A significant association was found between Hypothyroidism and anaemia (p-value <0.0001). The mean Thyroid stimulating hormone value of anaemic patients was 3.98±1.02, which is significantly higher (p<0.0001) than TSH value of 2.65±0.98 as seen in non-anaemic patients. The majority of anaemia cases in both euthyroid and hypothyroid groups were found to be of moderate severity. Dimorphic anaemia was the most common type of anaemia morphologically in both euthyroid and hypothyroid subjects. It was also the most common type of anaemia in all three trimesters. Conclusion: The incidence of anaemia was higher in the hypothyroid group compared to the euthyroid group. Thus, it is very important to study the incidence and type of anaemia in hypothyroid pregnant females, so that appropriate early nutritional and medicinal intervention can be taken so as to prevent the morbidity and mortality in these patients.

scholarly journals Thyroid stimulating hormone levels and geriatric syndromes: secondary nested case–control study of the Mexican Health and Aging Study

2021 ◽  
Author(s):  
Mario U. Perez-Zepeda ◽  
Paloma Almeda-Valdes ◽  
Julio Manuel Fernandez-Villa ◽  
Ronald C. Gomez-Arteaga ◽  
Miguel G. Borda ◽  
...  
Keyword(s):  
Case Control Study ◽  
Case Control ◽  
Thyroid Stimulating Hormone ◽  
Geriatric Syndromes ◽  
Hormone Levels ◽  
Aging Study ◽  
Nested Case Control ◽  
Control Study ◽  
Stimulating Hormone

First-trimester fetal growth discordance and development of preeclampsia in dichorionic twin pregnancies

2015 ◽  
Vol 43 (6) ◽  
Author(s):  
Tanya Maric ◽  
Natasha Singh ◽  
Keith Duncan ◽  
Guy J. Thorpe-Beeston ◽  
Makrina D. Savvidou
Keyword(s):  
Fetal Growth ◽  
Case Control Study ◽  
Subsequent Development ◽  
First Trimester ◽  
Case Control ◽  
Retrospective Case ◽  
Crown Rump Length ◽  
Significant Difference ◽  
Twin Pregnancies ◽  
Control Study

AbstractTo investigate the relation between first-trimester fetal growth discrepancy, as assessed by crown-rump length (CRL) at 11+0 to 13+6 weeks of gestation, and subsequent development of preeclampsia (PE) in dichorionic diamniotic (DCDA) twin pregnancies. The association between inter-twin CRL and birth weight (BW) discrepancy was also investigated.This was a retrospective, case-control study of DCDA twin pregnancies. Inter-twin CRL discrepancy was calculated as 100×(larger CRL–smaller CRL)/larger CRL. BW discordance was calculated as 100×(larger BW–smaller BW)/larger BW.The study included 299 DCDA pregnancies that remained normotensive and 35 that subsequently developed PE. There was no significant difference in the inter-twin CRL discrepancy between pregnancies complicated by PE and those that were not [3.2%, interquartile range (IQR): 0.5–4.5% vs. 3.3%, IQR: 1.4–5.5%; P=0.17]. There was a positive correlation between inter-twin CRL and BW discrepancy but only in pregnancies that remained normotensive (P<0.001). In women that subsequently developed PE, there was no association between inter-twin CRL and BW discordance (P=0.54).In unselected DCDA twins, first-trimester CRL discrepancy is not different between pregnancies that subsequently develop PE and those that remain normotensive. Furthermore, in pregnancies that are complicated by PE, the association between inter-twin CRL and BW discrepancy appears to be lost.

First trimester prediction of gestational diabetes mellitus using plasma biomarkers: a case-control study

2019 ◽  
Vol 47 (2) ◽  
pp. 161-168 ◽  
Author(s):  
Paula J. Correa ◽  
Pia Venegas ◽  
Yasna Palmeiro ◽  
Daniela Albers ◽  
Gregory Rice ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Case Control Study ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
First Trimester ◽  
Case Control ◽  
Low Density ◽  
Control Study

AbstractObjectivesTo evaluate the first trimester maternal biomarkers for early pregnancy prediction of gestational diabetes mellitus (GDM).MethodsThe study was a case-control study of healthy women with singleton pregnancies at the first trimester carried out at the Obstetrics and Gynecology Unit, Clinica Davila, Santiago, Chile. After obtaining informed consent, peripheral blood samples of pregnant women under 14 weeks of gestation were collected. At 24–28 weeks of pregnancy, women were classified as GDM (n=16) or controls (n=80) based on the results of a 75-g oral glucose tolerance test (OGTT). In all women, we measured concentrations of fasting blood glucose, insulin, glycated hemoglobin, uric acid, cholesterol, high density lipoprotein (HDL), low density lipoprotein (LDL), very low density lipoprotein (VLDL), triglycerides, aspartate aminotransferase (AST), alanine aminotransferase (ALT), γ-glutamyl transpeptidase (GGT), alkaline phosphatase (AP), sex hormone-binding globulin (SHBG), adiponectin, tissue plasminogen activator (t-PA), leptin and placental growth factor (PGF).ResultsThe GDM group displayed an increased median concentration of cholesterol (P=0.04), triglycerides (P=0.003), insulin (P=0.003), t-PA (P=0.0088) and homeostatic model assessment (HOMA) (P=0.003) and an increased mean concentration of LDL (P=0.009) when compared to the control group. The receiver operating characteristic (ROC) curve for significant variables achieved an area under the curve (AUC) of 0.870, a sensitivity of 81.4% and a specificity of 80.0%. The OGTT was positive for GDM according to the IADPSG (International Diabetes in Pregnancy Study Group) criteria.ConclusionWomen who subsequently developed GDM showed higher levels of blood-borne biomarkers during the first trimester, compared to women who did not develop GDM. These data warrant validation in a larger cohort.

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