Christian Mallen c.d.mallen@keele.ac.uk
International variation in GP treatment strategies for subclinical hypothyroidism in older adults: a case-based survey.
Mallen
Authors
Abstract
BACKGROUND: There is limited evidence about the impact of treatment for subclinical hypothyroidism, especially among older people. AIM: To investigate the variation in GP treatment strategies for older patients with subclinical hypothyroidism depending on country and patient characteristics. DESIGN AND SETTING: Case-based survey of GPs in the Netherlands, Germany, England, Ireland, Switzerland, and New Zealand. METHOD: The treatment strategy of GPs (treatment yes/no, starting-dose thyroxine) was assessed for eight cases presenting a woman with subclinical hypothyroidism. The cases differed in the patient characteristics of age (70 versus 85 years), vitality status (vital versus vulnerable), and thyroid-stimulating hormone (TSH) concentration (6 versus 15 mU/L). RESULTS: A total of 526 GPs participated (the Netherlands n = 129, Germany n = 61, England n = 22, Ireland n = 21, Switzerland n = 262, New Zealand n = 31; overall response 19%). Across countries, differences in treatment strategy were observed. GPs from the Netherlands (mean treatment percentage 34%), England (40%), and New Zealand (39%) were less inclined to start treatment than GPs in Germany (73%), Ireland (62%), and Switzerland (52%) (P = 0.05). Overall, GPs were less inclined to start treatment in 85-year-old than in 70-year-old females (pooled odds ratio [OR] 0.74 [95% confidence interval [CI] = 0.63 to 0.87]). Females with a TSH of 15 mU/L were more likely to get treated than those with a TSH of 6 mU/L (pooled OR 9.49 [95% CI = 5.81 to 15.5]). CONCLUSION: GP treatment strategies of older people with subclinical hypothyroidism vary largely by country and patient characteristics. This variation underlines the need for a new generation of international guidelines based on the outcomes of randomised clinical trials set within primary care.
Acceptance Date | May 13, 2014 |
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Publication Date | Feb 1, 2015 |
Journal | British Journal of General Practice |
Print ISSN | 0960-1643 |
Publisher | Royal College of General Practitioners |
Pages | e121 - e132 |
DOI | https://doi.org/10.3399/bjgp15X683569 |
Publisher URL | https://bjgp.org/content/65/631/e121 |
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