The Study
EVALUATING THYROID HORMONE INFLUENCE ON CARDIOVASCULAR RISK AMONG PATIENTS WITH SUBCLINICAL AND CLINICAL HYPOTHYROIDISM
This study looked at people who already had thyroid problems and checked if their hearts showed signs of trouble. It found that people with worse thyroid problems also tended to have worse heart signs — but it didn't watch them over time to see if the thyroid problem came first. So we can't say the thyroid caused the heart problems, just that they often happened together.
Analysis score
Maximum 44 for a cross-sectional study.
Where the score came from
When your thyroid doesn't make enough hormones, your heart and blood vessels don't work as well — and the worse the thyroid problem, the worse your heart gets.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 544 / 100
Quality score
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes — these differences mean people with severe hypothyroidism are at much higher risk for heart failure, heart attacks, and strokes.
- 2People with full-blown hypothyroidism had 35.5% heart pumping problems vs.
- 321.3% in mild cases; 14.8% had heart weakness vs.
- 46.5%; 12.3% had irregular heartbeat vs.
- 58.4%; cholesterol was 228 vs.
- 6210 mg/dL; inflammation was 4.1 vs.
- 73.4 mg/L.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Insights-Journal of Health and Rehabilitation
Year
2025
Authors
Shabahat Arain¹, S. Umer, Naheed Thanvi², Shah³, Muhammad Damil, Ali Farid⁴, Irfan Raza⁵, Salih Ishaque⁶, Syed Noor⁷, M. Afraz, Haider⁸, PhD Scholar Shabahat Arain
Related Content
Claims (6)
Human survival requires adequate thyroid hormone levels; when these levels are too low, the body's systems gradually deteriorate and the risk of death increases.
People with full-blown hypothyroidism have higher triglyceride levels in their blood than those with mild hypothyroidism, showing that worse thyroid hormone deficiency is linked to higher fat levels in the blood.
People with clinical hypothyroidism have higher levels of high-sensitivity C-reactive protein in their blood than people with subclinical hypothyroidism, showing that the severity of thyroid hormone deficiency correlates with the level of systemic inflammation.
People with clinical hypothyroidism have higher levels of total cholesterol and LDL cholesterol than people with subclinical hypothyroidism, and the degree of thyroid hormone deficiency correlates with the level of these cholesterol markers.
People with clinical hypothyroidism have a higher rate of high blood pressure than those with subclinical hypothyroidism, and the severity of thyroid hormone deficiency correlates with the likelihood of developing high blood pressure.
People with full-blown hypothyroidism are more likely to have abnormal heart function and irregular heart rhythms than people with mild hypothyroidism.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.