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Table 4 Linear regression equation coefficients for directly predicting corrected measurementa of the anteroposterior (AP) and mediolateral (ML) diameters, and thyroid volume (Tvol) as a function of the original measurements (n = 272).

From: Data quality and practical challenges of thyroid volume assessment by ultrasound under field conditions - observer errors may affect prevalence estimates of goitre

 

Beta1(95% CI)

Beta0(95% CI)

Right lobe

  

ML

0.88 (0.83, 0.94)

0.35 (0.27, 0.43)

AP

1.11 (1.03, 1.20)

0.18 (0.09, 0.26)

Left lobe

  

ML

0.87 (0.79, 0.94)

0.45 (0.33, 0.57)

AP

1.18 (1.10, 1.27)

0.01 (-0.07, 0.09)

Tvol

1.42 (1.37, 1.46)

0.01 (-0.25, 0.27)

  1. aCorrected = β1* original + β0