000160893 001__ 160893
000160893 005__ 20251017144558.0
000160893 0247_ $$2doi$$a10.1016/j.rmed.2025.108103
000160893 0248_ $$2sideral$$a144111
000160893 037__ $$aART-2025-144111
000160893 041__ $$aeng
000160893 100__ $$aFandos Vázquez, Pilar
000160893 245__ $$aThyroid hormones in people with chronic obstructive pulmonary disease: A systematic review and meta-analysis
000160893 260__ $$c2025
000160893 5060_ $$aAccess copy available to the general public$$fUnrestricted
000160893 5203_ $$aObjective: To determine the influence of COPD on thyroid hormone levels.
Methods: We performed a meta-analysis after conducting a literature search in PubMed, Embase, Web of Science, the Cochrane Library, ScienceDirect, and the Virtual Health Library from database inception to December 31st, 2023. We employed the inverse variance method with a random effects model to calculate the effect estimate as the mean difference (MD) and 95 % confidence interval (CI). We calculated the heterogeneity with the I2 statistic and performed a meta-regression analysis based on age, sex, and smoking status. The PROSPERO registry number was CRD42024492108.
Results: The meta-analysis included 25 studies with 1613 patients with COPD and 1792 controls. The pooled MD (95 %CI) for TSH and total T3 were −0.26 mUI/L (−0.46, −0.07); p = 0.009, and −0.15 pg/mL (−0.29, −0.00); p = 0.04 respectively. There was no difference for free T3 and T4 and for total T4 between patients and controls. Heterogeneity was high in all cases. The patients with acute exacerbation of COPD had lower levels of TSH, free and total T3, pooled MD for TSH -0.58 mIU/L (−0.86, −0.31); p < 0.001, for free T3 -0.80 pg/mL (-1.53, -0.31); p < 0.001 and for total T3 -0.21 ng/mL (-0.33, -0.08); p < 0.001. TSH and total T3 levels were lower in patients with more severe airflow obstruction. The meta-regression analysis showed that the percentage of males and smokers in each study could explain the heterogeneity in T4 values.
Conclusions: TSH and T3 levels are decreased in patients with COPD, particularly in severe stages and during acute exacerbations.
000160893 540__ $$9info:eu-repo/semantics/embargoedAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000160893 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000160893 700__ $$0(orcid)0000-0002-3132-2171$$aDíez-Manglano, Jesús$$uUniversidad de Zaragoza
000160893 7102_ $$11007$$2610$$aUniversidad de Zaragoza$$bDpto. Medicina, Psiqu. y Derm.$$cArea Medicina
000160893 773__ $$g242 (2025), 108103 [8 pp.]$$pRespir. med.$$tRespiratory Medicine$$x0954-6111
000160893 8564_ $$s1721502$$uhttps://zaguan.unizar.es/record/160893/files/texto_completo.pdf$$yVersión publicada$$zinfo:eu-repo/date/embargoEnd/2026-04-14
000160893 8564_ $$s1007052$$uhttps://zaguan.unizar.es/record/160893/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada$$zinfo:eu-repo/date/embargoEnd/2026-04-14
000160893 909CO $$ooai:zaguan.unizar.es:160893$$particulos$$pdriver
000160893 951__ $$a2025-10-17-14:13:49
000160893 980__ $$aARTICLE