Table 1.

Baseline characteristics of the cohort

Variable	Pre-BMI protocol (n=150)	BMI protocol (n=180)	p
Gender (% female)	84%	85%	0.8
Age, years (mean ± SD)	50 ± 16	48 ± 15	0.2
Weight, kg (mean ± SD)	84 ± 23	85 ± 23	0.8
Graves' disease (%)	27%	44%	0.001
BMI (mean ± SD)	29.9 ± 7.8	30.4 ± 8.1	0.6
BMI Group, % (n)			0.7
16–21	10% (15)	10% (18)
22–26	28.7% (43)	27.8% (50)
27–32	35.3% (53)	28.3% (51)
33–37	9.3% (14)	15.6% (28)
38–43	10% (15)	11.7% (21)
44–48	3.3% (5)	3.9% (7)
49–50	1.3% (2)	0.6% (1)
≥51	2% (3)	2.2% (4)
Initial Dose LT4, mcg (mean ± SD)	138 ± 31	132 ± 27	0.09

SD = standard deviation; LT4 = levothyroxine