The thyroid epidemiology, audit, and research study: Thyroid dysfunction in the general population

TY - JOUR

T1 - The thyroid epidemiology, audit, and research study

T2 - Thyroid dysfunction in the general population

AU - Flynn, R. W V

AU - MacDonald, T. M.

AU - Morris, A. D.

AU - Jung, R. T.

AU - Leese, G. P.

PY - 2004/8/1

Y1 - 2004/8/1

N2 - The objective of this study was to define the level of treated thyroid dysfunction in a complete and representative population base in an area of sufficient dietary iodine intake. We used record-linkage technology to retrospectively identify subjects treated for hyperthyroidism or hypothyroidism in the general population of Tayside, Scotland from 1 January 1993 to 30 April 1997. Thyroid status was ascertained by record linkage of patient-level datasets containing details of treatments for hyperthyroidism and hypothyroidism. We identified 620 incident cases of hyperthyroidism, an incidence rate of 0.77/1000·yr [95% confidence interval (CI), 0.70-0.84] in females and 0.14/1000·yr (95% CI, 0.12-0.18) in males. There were 3,486 incident cases of diagnosed primary hypothyroidism, an incidence rate of 4.98/1000·yr (95% CI, 4.81-5.17) in females and 0.88/1000·yr (95% CI, 0.80-0.96) in males. For both hyperthyroidism and hypothyroidism, the incidence increased with age, and females were affected two to eight times more than males across the age range. The mid-year point prevalence of all-cause hypothyroidism rose from 2.2% in 1993 to 3.0% in 1996. The level of thyroid dysfunction in Tayside, Scotland is higher than previously reported, and it increased from 1993 to 1996.

AB - The objective of this study was to define the level of treated thyroid dysfunction in a complete and representative population base in an area of sufficient dietary iodine intake. We used record-linkage technology to retrospectively identify subjects treated for hyperthyroidism or hypothyroidism in the general population of Tayside, Scotland from 1 January 1993 to 30 April 1997. Thyroid status was ascertained by record linkage of patient-level datasets containing details of treatments for hyperthyroidism and hypothyroidism. We identified 620 incident cases of hyperthyroidism, an incidence rate of 0.77/1000·yr [95% confidence interval (CI), 0.70-0.84] in females and 0.14/1000·yr (95% CI, 0.12-0.18) in males. There were 3,486 incident cases of diagnosed primary hypothyroidism, an incidence rate of 4.98/1000·yr (95% CI, 4.81-5.17) in females and 0.88/1000·yr (95% CI, 0.80-0.96) in males. For both hyperthyroidism and hypothyroidism, the incidence increased with age, and females were affected two to eight times more than males across the age range. The mid-year point prevalence of all-cause hypothyroidism rose from 2.2% in 1993 to 3.0% in 1996. The level of thyroid dysfunction in Tayside, Scotland is higher than previously reported, and it increased from 1993 to 1996.

UR - https://www.scopus.com/pages/publications/4043179671

U2 - 10.1210/jc.2003-032089

DO - 10.1210/jc.2003-032089

M3 - Article

C2 - 15292321

AN - SCOPUS:4043179671

SN - 0021-972X

VL - 89

SP - 3879

EP - 3884

JO - Journal of Clinical Endocrinology and Metabolism

JF - Journal of Clinical Endocrinology and Metabolism

IS - 8

ER -