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Triiodothyronine Levels in Athyreotic Individuals During Levothyroxine Therapy

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Figure 2. Serum TSH, FT4, and T3 Concentrations at Study Time Points 1 to 4 for Patients With Benign Thyroid Disease or Thyroid Cancer
Figure 2. Serum TSH, FT4, and T3 Concentrations at Study Time Points 1 to 4 for Patients With Benign Thyroid Disease or Thyroid Cancer

TSH indicates thyroid-stimulating hormone; FT4, free thyroxine; T3, triiodothyronine. To convert FT4 to pmol/L, multiply by 12.871; and T3 to nmol/L, multiply by 0.0154. Thyroidectomy and levothyroxine (LT4) initiation occurred between time points 2 and 3. LT4 adjustment was made between time points 3 and 4. The top, bottom, and middle lines of the boxes correspond to the 75th percentile, 25th percentile, and 50th percentile (median), respectively. The whiskers extend from the 10th percentile to the 90th percentile. The filled squares indicate the arithmetic mean.

This Article

  1. JAMA. 2008;299(7):769-777. doi: 10.1001/jama.299.7.769

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