33 research outputs found

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

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    Q3Q3Abstract Purpose To determine the incidence of geriatric syndromes (GS) in community dwelling older adults with subclinical hypothyroidism. Methods This is an analysis from the Mexican Health and Aging Study, of a subsample of 2089 subjects with TSH determination. From this last subsample, we included 1628 individuals with TSH levels in the subclinical range (4.5–10 µU/ml). Results The multivariate analysis showed that when comparing data obtained from the 2012 wave with the 2015 wave results, there was a signifcant incidence of some GS such as falls (OR 1.79, CI 1.16–2.77, p=0.0116), fatigue (OR 2.17, CI 1.40–3.38, p=0.0348) and depression (OR 1.70, CI 1.06–2.71, p=0.0246) among the subclinical hypothyroidism group. Conclusion This study showed a greater incidence of GS in subjects 50 years and older with sub-clinical hypothyroidism, when compared to those with normal thyroid function. Keywords Thyroid stimulating hormone · Aging · Geriatric syndromes · Chronic disease · Subclinical hypothyroidismhttps://orcid.org/0000-0002-1652-5042https://scholar.google.com/citations?user=qUwLuswAAAAJ&hl=es&oi=aohttps://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0000136038Revista Internacional - Indexad

    Total and high molecular weight adiponectin have similar utility for the identification of insulin resistance

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    <p>Abstract</p> <p>Background</p> <p>Insulin resistance (IR) and related metabolic disturbances are characterized by low levels of adiponectin. High molecular weight adiponectin (HMWA) is considered the active form of adiponectin and a better marker of IR than total adiponectin. The objective of this study is to compare the utility of total adiponectin, HMWA and the HMWA/total adiponectin index (S<sub>A </sub>index) for the identification of IR and related metabolic conditions.</p> <p>Methods</p> <p>A cross-sectional analysis was performed in a group of ambulatory subjects, aged 20 to 70 years, in Mexico City. Areas under the receiver operator characteristic (ROC) curve for total, HMWA and the S<sub>A </sub>index were plotted for the identification of metabolic disturbances. Sensitivity and specificity, positive and negative predictive values, and accuracy for the identification of IR were calculated.</p> <p>Results</p> <p>The study included 101 men and 168 women. The areas under the ROC curve for total and HMWA for the identification of IR (0.664 <it>vs</it>. 0.669, <it>P </it>= 0.74), obesity (0.592 <it>vs</it>. 0.610, <it>P </it>= 0.32), hypertriglyceridemia (0.661 <it>vs</it>. 0.671, <it>P </it>= 0.50) and hypoalphalipoproteinemia (0.624 <it>vs</it>. 0.633, <it>P </it>= 0.58) were similar. A total adiponectin level of 8.03 μg/ml was associated with a sensitivity of 57.6%, a specificity of 65.9%, a positive predictive value of 50.0%, a negative predictive value of 72.4%, and an accuracy of 62.7% for the diagnosis of IR. The corresponding figures for a HMWA value of 4.25 μg/dl were 59.6%, 67.1%, 51.8%, 73.7% and 64.2%.</p> <p>The area under the ROC curve of the S<sub>A </sub>index for the identification of IR was 0.622 [95% CI 0.554-0.691], obesity 0.613 [95% CI 0.536-0.689], hypertriglyceridemia 0.616 [95% CI 0.549-0.683], and hypoalphalipoproteinemia 0.606 [95% CI 0.535-0.677].</p> <p>Conclusions</p> <p>Total adiponectin, HMWA and the S<sub>A </sub>index had similar utility for the identification of IR and metabolic disturbances.</p
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