Subclinical Hypothyroidism and the Risk of Stroke Events and Fatal Stroke: An Individual Participant Data Analysis.

Details

Ressource 1Download: 5_25856213_Postprint.pdf (776.48 [Ko])
State: Public
Version: author
Serval ID
serval:BIB_97B34C008875
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Subclinical Hypothyroidism and the Risk of Stroke Events and Fatal Stroke: An Individual Participant Data Analysis.
Journal
Journal of Clinical Endocrinology and Metabolism
Author(s)
Chaker L., Baumgartner C., den Elzen W.P., Ikram M.A., Blum M.R., Collet T.H., Bakker S.J., Dehghan A., Drechsler C., Luben R.N., Hofman A., Portegies M.L., Medici M., Iervasi G., Stott D.J., Ford I., Bremner A., Wanner C., Ferrucci L., Newman A.B., Dullaart R.P., Sgarbi J.A., Ceresini G., Maciel R.M., Westendorp R.G., Jukema J.W., Imaizumi M., Franklyn J.A., Bauer D.C., Walsh J.P., Razvi S., Khaw K.T., Cappola A.R., Völzke H., Franco O.H., Gussekloo J., Rodondi N., Peeters R.P.
Working group(s)
Thyroid Studies Collaboration
ISSN
1945-7197 (Electronic)
ISSN-L
0021-972X
Publication state
Published
Issued date
2015
Peer-reviewed
Oui
Volume
100
Number
6
Pages
2181-2191
Language
english
Notes
Document Type: Review, mais systematic search
Abstract
OBJECTIVE: The objective was to determine the risk of stroke associated with subclinical hypothyroidism.
DATA SOURCES AND STUDY SELECTION: Published prospective cohort studies were identified through a systematic search through November 2013 without restrictions in several databases. Unpublished studies were identified through the Thyroid Studies Collaboration. We collected individual participant data on thyroid function and stroke outcome. Euthyroidism was defined as TSH levels of 0.45-4.49 mIU/L, and subclinical hypothyroidism was defined as TSH levels of 4.5-19.9 mIU/L with normal T4 levels.
DATA EXTRACTION AND SYNTHESIS: We collected individual participant data on 47 573 adults (3451 subclinical hypothyroidism) from 17 cohorts and followed up from 1972-2014 (489 192 person-years). Age- and sex-adjusted pooled hazard ratios (HRs) for participants with subclinical hypothyroidism compared to euthyroidism were 1.05 (95% confidence interval [CI], 0.91-1.21) for stroke events (combined fatal and nonfatal stroke) and 1.07 (95% CI, 0.80-1.42) for fatal stroke. Stratified by age, the HR for stroke events was 3.32 (95% CI, 1.25-8.80) for individuals aged 18-49 years. There was an increased risk of fatal stroke in the age groups 18-49 and 50-64 years, with a HR of 4.22 (95% CI, 1.08-16.55) and 2.86 (95% CI, 1.31-6.26), respectively (p trend 0.04). We found no increased risk for those 65-79 years old (HR, 1.00; 95% CI, 0.86-1.18) or ≥ 80 years old (HR, 1.31; 95% CI, 0.79-2.18). There was a pattern of increased risk of fatal stroke with higher TSH concentrations.
CONCLUSIONS: Although no overall effect of subclinical hypothyroidism on stroke could be demonstrated, an increased risk in subjects younger than 65 years and those with higher TSH concentrations was observed.
Keywords
Adult, Asymptomatic Diseases, Female, Humans, Hypothyroidism/complications, Hypothyroidism/epidemiology, Incidence, Male, Risk Factors, Stroke/blood, Stroke/epidemiology, Thyrotropin/blood
Pubmed
Web of science
Open Access
Yes
Create date
05/10/2015 13:08
Last modification date
20/08/2019 14:59
Usage data