Table 5.

Significant predictors of thyroid derivative analytes

Parameter	Parameter estimate as a coefficient	Standard Error for coefficient	Parameter estimate as a percentage change*	95% CI for percentage change	P
Log 3,3′-T2 MS
Age	−0.011	0.0033	−1.1	--0.5 – −1.7	0.0017
Thyroidectomy	0.2548	0.1276	29.0	0.5 – 65.7	0.049
Inpatient	−0. 6198	0.1167	−46.2	−32.4 – −57.2	<0.0001
Log rT3 MS
Critical Care Unit	0.5756	0.1234	77.8	39.6 – 126.5	<0.0001
Log T3 MS
Age	−0.0084	0.0023	−0.8	−0.4 – −1.3	0.0006
Male Gender	−0.2372	0.0748	−21.1	−8.7 – −31.9	0.0021
Critically ill	−0.6793	0.1184	−49.3	−36.1 – −59.8	<0.0001
Critical Care Unit	−0.4039	0.0998	−33.2	−18.8 – −45.1	0.0001
Log T4 MS
Age	−0.0073	0.0021	−0.7	−0.3 – −1.1	0.0011
Thyroidectomy	0.2577	0.0879	29.4	8.9 – 53.7	0.0042
Inpatient	−0.1825	0.0771	−16.7	−3.1 – −28.4	0.0201
Log TSH
Thyroid cancer	−2.2982	0.5062	−90.0	−72.9 – −96.3	<0.0001

^*Values are back log-transformed. Parameter estimate as a percentage is the percentage change in dependent variables for one unit increase for continuous variable (age) or as compared with reference group for categorical variables. For example, a one-year increase in age would result in a 1.1% decrease in 3, 3-T2, and an inpatient status was associated with a 46% decrease in 3, 3-T2.