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. 2013 Apr 3;32(4):203–207. [Article in Spanish] doi: 10.1016/S0212-6567(03)79253-1

Incidencia y características del hipertiroidismo clínico y subclínico

Incidence and characteristics of clinical and sub-clinic hyperthyroidism

MN Soler Solé a,*, P Godoy b, M Amorós Brotons a, S Sarriegui Domínguez a, F Rius Riu c
PMCID: PMC7669072  PMID: 12975083

Abstract

Objectives

Estimate the incidence of hyperthyroidism in the region of Lleida and compare patients with clinic and subclinic hyperthyroidism.

Design

Descriptive retrospective.

Localization

City of Lleida and the towns of the provinces of Lleida and Huesca.

Patients

190 people diagnosed of hyperthyroidism detected from a sample of 1885 patients with different pathologies,belonging to first visits to de Service of Endocrinology of the Hospital Arnau de Vilanova, during the period from 1999 to 2000.

Main measurements

The following clinic and demographical variables related to the thyroid pathology were recorded: TSH, T4,T3, anti-Tg antibodies, anti-TPO antibodies, age, gender, consumption of salt with iodine and the incidence tax of hyperthyroidism.

Results

The incidence tax of hyperthyroidism in the province of Lleida was 46.2 *105 people/year (95% CI, 33.5–61.0). For the 190 patients, the 85% (95% CI, 79.4–90) of them were women; the 38% (95% CI, 31%–45.2%) and the 62% (95% CI, 54.8–69) were diagnosed of clinic and subclinic hyperthyroidism respectively. The subclinic profile was characteristically for had a superior mean of age (P<.003), double of TSH level (P<.03) and half of T4level of (P<.001).

Conclusion

Our study shows a high incidence of hyperthyroidism, and a difference of the two hyperthyroidisms. The detection of this pathology by professionals of primary care can help to improve their therapeutic control.

Key words: Thyroid-stimulating hormone(TSH), Thyroxine(T4), Triiodothyronine(T3), Antithyroglobulin (anti-Tg)antibodies, Antithyroid microsomal (TPO) antibodies

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