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Table 3 Simple logistic regression analysis of factors associated with increase in LT4 ≥ 50 μg

From: Thyroid blood flow in inferior thyroid artery as predictor for increase in levothyroxine dosage during pregnancy in women with Hashimoto's thyroiditis - a retrospective study

 

OR (95% CI)

p

Age, years

1.123 (0.877–1.437)

0.359

BMI, kg/m2

0.924 (0.636–1.344)

0.680

F-T4, ng/ml

0.191 (0.001–56.858)

0.569

F-T3, pg/ml

0.387 (0.033–4.502)

0.448

TSH, μIU/ml

1.800 (0.972–3.336)

0.062

Thyroid volume, ml

0.812 (0.604–1.091)

0.166

ITA-PSV, cm/s

0.571 (0.348–0.935)

0.026

Baseline LT4 administration (yes = 1, no = 0)

2.062 (0.313–13.574)

0.451

  1. Abbreviations: OR Odds ratio, CI Confidence interval, BMI Body mass index, F-T4 Free thyroxine, F-T3 Free triiodothyronine, TSH Thyroid stimulating hormone, ITA-PSV Inferior thyroid artery peak systolic velocity, LT4 Levothyroxine