Journal of General Internal Medicine

, Volume 12, Issue 9, pp 544–550

Do traditional symptoms of hypothyroidism correlate with biochemical disease?

  • Gay J. Canaris
  • John F. Steiner
  • E. Chester Ridgway
Original Articles

Abstract

Objective

Hypothyroidism often remains undetected because of the difficulty associating symptoms with disease. To determine the relation between symptoms and biochemical disease, we assessed symptoms and serum thyroid function tests, concurrently, for patients with and without hypothyroidism.

Design

Cross-sectional study.

Setting/Patients

Seventy-six newly diagnosed case patients with overt hypothyroidism and 147 matched control patients identified through outpatient laboratories in Michigan and Colorado.

Measurements and main results

Patient symptoms were assessed by questionnaire. Case patients reported a higher proportion of hypothyroid symptoms than did control patients (30.2% vs 16.5%,p<.0001). Univariate analysis identified three significant predictors of an elevated level of thyroid-stimulating hormone (TSH) (p<.05), and 13 symptoms which, when they had changed in the past year, were reported more often by case patients with hypothyroidism than by control patients (p<.005). Individuals reporting changes in 7 or more symptoms were significantly more likely to have hypothyroidism (likelihood ratio [LR]=8.7, 95% confidence interval [CI] 3.8, 20.2); those reporting changes in 2 or fewer symptoms were less likely to have hypothyroidism (LR=0.5, 95% CI 0.4, 0.7).

Conclusions

In this sample, the number of hypothyroid symptoms reported was directly related to the level of TSH. The association was stronger when more symptoms were reported. Symptoms that had changed in the past year were more powerful than symptoms reported present at the time of testing. This suggests that traditional symptoms are valuable when deciding which patients to test for hypothyroidism.

Key words

hypothyroidism symptoms diagnosis 

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Copyright information

© Society of General Internal Medicine 1997

Authors and Affiliations

  • Gay J. Canaris
    • 1
  • John F. Steiner
    • 2
  • E. Chester Ridgway
    • 3
  1. 1.Department of Internal MedicineUniversity of Nebraska Medical CenterOmaha
  2. 2.Department of MedicineUniversity of Colorado Health Sciences CenterDenver
  3. 3.Division of EndocrinologyUniversity of Colorado Health Sciences CenterDenver

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