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Inicio Medicina Clínica (English Edition) Prevalence of diabetes in people with thyroid dysfunction
Journal Information
Vol. 160. Issue 8.
Pages 333-340 (April 2023)
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Vol. 160. Issue 8.
Pages 333-340 (April 2023)
Original article
Prevalence of diabetes in people with thyroid dysfunction
Prevalencia de diabetes en personas con disfunción tiroidea
Juan J. Díeza,
Corresponding author
juanjose.diez@salud.madrid.org

Corresponding author.
, Pedro Iglesiasa,b,c
a Servicio de Endocrinología y Nutrición, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
b Instituto de Investigación Sanitaria Puerta de Hierro Segovia de Arana, Majadahonda, Madrid, Spain
c Departamento de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
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Tables (4)
Table 1. Prevalence of diabetes (type 1, type 2 and total) in the total population and in patients with hypothyroidism (2020 data).
Table 2. Prevalence of diabetes (type 1 and type 2) in patients with hypothyroidism classified according to the presence or absence of thyroid hormone replacement therapy (2018 data).
Table 3. Prevalence of diabetes (type 1, type 2 and total) in the total population and in patients with hyperthyroidism (2020 data).
Table 4. Prevalence of diabetes (type 1 and type 2) in patients with hyperthyroidism classified according to the presence or absence of antithyroid-mediated treatment (2018 data).
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Abstract
Objective

To describe the prevalence and relative risk of diabetes in the population with hypothyroidism and hyperthyroidism.

Methods

A retrospective study was carried out using the Primary Care Clinical Database (BDCAP) of the Ministry of Health. Relative risks (OR) and their 95% confidence intervals (CI) were calculated for type 1 (T1D) and type 2 (T2D) diabetes.

Results

In the group of 2,596,041 hypothyroid patients, we found an OR of 1.77 (1.75−1.80) for T1D, and 1.77 (1.76−1.78) for T2D. This elevated risk was observed in both men and women. Hypothyroid people over 65 years of age had a near neutral risk of T1D (0.96 [0.94−0.99]) and T2D (0.99 [0.98−0.99]). Hypothyroid patients receiving replacement therapy showed a higher risk of T1D (1.32 [1.28−1.36]) and T2D (1.23 [1.22−1.24]) compared to untreated hypothyroid patients. In the group of 418,772 people with hyperthyroidism, an increased risk of T1D (1.66 [1.60−1.72]) and T2D (1.71 [1.70−1.73]) was also noticed. This risk was observed in both sexes. Those over 65 years of age did not present a high risk of T1D (0.89 [0.83−0.95]) and their risk of T2D was close to neutrality (1.03 [1.02−1.05]). Hyperthyroid patients treated with antithyroid agents had a higher risk of T1D (1.26 [1.14−1.40]) and T2D (1.32 [1.28−1.36]) than those without therapy.

Conclusion

People registered in BDCAP of both sexes, under 65 years of age, with thyroid dysfunction have an increased risk of suffering from diabetes, especially those on thyroid medication.

Keywords:
Hypothyroidism
Hyperthyroidism
Diabetes
Prevalence
Relative risk
BDCAP
Resumen
Objetivo

Describir la prevalencia y el riesgo relativo de diabetes en personas con hipotiroidismo e hipertiroidismo.

Métodos

Se realizó un estudio retrospectivo utilizando la Base de Datos Clínicos de Atención Primaria (BDCAP) del Ministerio de Sanidad. Se calcularon los riesgos relativos (OR) y sus intervalos de confianza (IC) al 95% para diabetes tipo 1 (DM1) y tipo 2 (DM2).

Resultados

En el grupo de 2.596.041 pacientes hipotiroideos se encontró un OR de 1,77 (IC 95%: 1,75–1,80) para DM1 y de 1,77 (IC 95%: 1,76–1,78) para DM2. Este elevado riesgo se observó tanto en hombres como en mujeres. Las personas hipotiroideas de más de 65 años presentaron un riesgo prácticamente neutro de DM1 (0,96 [IC 95%: 0,94–0,99]) y DM2 (0,99 [IC 95%: 0,98–0,99]). Los hipotiroideos en tratamiento sustitutivo mostraron un mayor riesgo de DM1 (1,32 [IC 95%: 1,28–1,36]) y DM2 (1,23 [IC 95%: 1,22–1,24]) en comparación con hipotiroideos no tratados. En el grupo de 418.772 personas con hipertiroidismo se observó también un riesgo incrementado de DM1 (1,66 [IC 95%: 1,60–1,72]) y DM2 (1,71 [IC 95%: 1,70–1,73]). Este riesgo se observó en ambos sexos. Los mayores de 65 años no presentaron riesgo elevado de DM1 (0,89 [IC 95%: 0,83–0,95]) y su riesgo de DM2 fue cercano a la neutralidad (1,03 [IC 95%: 1,02–1,05]). Los hipertiroideos tratados con medicación antitiroidea presentaron un mayor riesgo de DM1 (1,26 [IC 95%: 1,14–1,40]) y DM2 (1,32 [IC 95%: 1,28–1,36]) que los no tratados.

Conclusión

Las personas registradas en BDCAP de ambos sexos, menores de 65 años, con disfunción tiroidea presentan un riesgo incrementado de padecer diabetes, especialmente los que se encuentran en tratamiento farmacológico.

Palabras clave:
Hipotiroidismo
Hipertiroidismo
Diabetes
Prevalencia
Riesgo relativo
BDCAP

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