Thyroid disease and abnormal thyroid function tests in women with eating disorders and depression

Area of Science:

• Endocrinology
• Psychiatry
• Internal Medicine

Background:

• Thyroid disease is common and can mimic or exacerbate psychiatric symptoms.
• Eating disorders and major depression are prevalent conditions in female patients.
• The relationship between eating disorders, depression, and thyroid dysfunction requires further investigation.

Purpose of the Study:

• To compare the prevalence of thyroid disease and laboratory thyroid function abnormalities in female patients with an eating disorder and major depression versus those with major depression alone.
• To investigate age-related differences in thyroid disease incidence between the two patient groups.
• To assess the occurrence of abnormal thyroid screening values in euthyroid patients within each group.

Main Methods:

• A retrospective chart study comparing 42 female patients with an eating disorder and major depression to 48 female patients with major depression.
• Analysis of thyroid disease prevalence and laboratory thyroid function tests.
• Stratification of data by age groups (11-29 years and 30-80 years).

Main Results:

• Patients aged 30-80 with an eating disorder and depression showed a significantly higher incidence of thyroid disease (53%) compared to those with depression alone (17%).
• No significant difference in thyroid disease incidence was observed between groups aged 11-29 years.
• Abnormal thyroid screening values were found in 40% of euthyroid eating disorder patients and 34% of euthyroid major depression patients.

Conclusions:

• The prevalence of thyroid disease in eating disordered/depressed patients (24%) was double the expected rate in the general population.
• Routine thyroid function evaluation is recommended for female psychiatric inpatients, particularly those with co-occurring eating disorders and depression.
• Age is a significant factor in the presentation of thyroid disease in this patient population.