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Table 2 The mean differences ± standard deviation (SD), limits of agreement and pair-wise comparisons of p-values for anterior chamber depth (ACD) measurements using the three instruments

From: Agreement between Orbscan II, VuMAX UBM and Artemis-2 very-high frequency ultrasound scanner for measurement of anterior chamber depth

 

Mean difference ± SD

Limits of agreement

p-values*

Orbscan II vs UBM

0.17 ± 0.31 mm

0.80 to - 0.43 mm

< 0.01

Orbscan II vs Artemis-2 VHFUS

0.27 ± 0.34 mm

0.94 to - 0.39 mm

< 0.001

UBM vs Artemis-2 VHFUS

0.10 ± 0.18 mm

0.45 to - 0.26 mm

> 0.05

  1. UBM, ultrasound biomicroscopy; VHFUS, very high-frequency ultrasound scanner. *Pairwise comparison.