Table 3.

Physician Characteristics Affecting Physician Prescribing of LT4 Versus any T3-Containing Therapy

(A) Univariate analyses			(B) Multivariate analyses
Physician characteristic	Unadjusted OR [CI]	p-Value	Physician characteristic	Adjusted OR [CI]	p-Value
Number of years in practice			Number of years in practice
In training (reference)	—	—	In training (reference)	—	—
<5 years	1.6 [0.7–3.8]	0.24	< 5 years	1.7 [0.7–4.1]	0.22
5–10 years	1.5 [0.7–3.4]	0.31	5–10 years	1.5[0.7–3.6]	0.31
11–20 years	1.6 [0.7–3.5]	0.23	11–20 years	1.8 [0.8–4.0]	0.18
>20 years	1.2 [0.6–2.6]	0.63	>20 years	1.3 [0.6–2.8]	0.55
Country of practice			Country of Practice
Other (reference)	—	—	Other (reference)	—	—
North America	1.8 [1.4–2.4]	<0.0001	North America	1.8 [1.3–2.4]	<0.0001
Specialty			Specialty
Internist or primary care (reference)	—	—	Internist or Primary Care (reference)	—	—
Endocrinologist	0.99 [0.5–2.6]	0.99	Endocrinologist	1.0 [0.4–2.8]	0.95
Surgeon	1.6 [0.5–4.9]	0.45	Surgeon	1.7 [0.5–5.5]	0.38
Nuclear medicine Physician	0.6 [0.2–1.9]	0.40	Nuclear Medicine Physician	0.9 [0.3–2.9]	0.80
Other	1.6 [0.5–4.9]	0.45	Other	1.7 [0.5–5.3]	0.37

Significant comparisons are indicated in bold.

OR, odds ratio; CI, confidence interval.