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. Author manuscript; available in PMC: 2013 May 20.
Published in final edited form as: J Am Coll Surg. 2013 Jan 11;216(3):454–460. doi: 10.1016/j.jamcollsurg.2012.12.002

Table II.

Status at 6–8 week follow up post operatively

TSH (uIU/mL)
Variables All Over-dosed (<0.45) Euthyroid (0.45–4.5) Under-dosed (>4.5) p value
 n (%) 122 51 (41.80%) 39 (31.96%) 32 (26.23%)
 Age, years 49.0 ± 1.2 51.3 ± 1.8 48.8 ± 2.2 45.5 ± 2.6 p=0.19
 BMI, kg/m2 30.5 ± 0.8 32.3 ± 1.5 31.0 ± 1.2 27.0 ± 1.5 p=0.030
Initial dose of LT4, mcg/kg/day 1.58 ± 0.02 1.61 ± 0.03 1.58 ± 0.05 1.53 ± 0.03 p=0.34
Eventual Euthyroid dose of LT4, mcg/kg/day 1.61 ± 0.03 1.46 ± 0.03 1.58 ± 0.05 1.89 ± 0.07 p<.0001

TSH= Thyroid Stimulating Hormone

BMI= body mass index calculated as weight in kilograms divided by the square of the height in meters

LT4= levothyroxine

Data are represented as the mean +/− SEM

Differences among groups analyzed with ANOVA