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Table 1 Overview of interrater agreement and reader analysis

From: The impact of limb loading and the measurement modality (2D versus 3D) on the measurement of the limb loading dependent lower extremity parameters

INTERRATER AGREEMENT ICC
  2D WB 2D NWB 3D
HKA (95% CI) 0.996 (0.994–0.998) 0.987 (0.980–0.991) 0.988 (0.981–0.992)
JLCA (95% CI) 0.783 (0.684–0.853) 0.694 (0.563–0.790) 0.844 (0.743–0.903)
READER ANALYSIS
  2D WB 2D NWB 3D
HKA
 Reader 1: Mean (range) 5.4 (−10.5–19.5) 4.4 (6.3–15.3) 4.2 (− 7.2–19.8)
 Reader 2: Mean (range) 5.5 (−10.9–19.2) 4.5 (− 5.7–14.8) 4.3 (−8.2–19.6)
 MAD: Mean ± SD 0.3 ± 0.3 0.4 ± 0.4 0.4 ± 0.5
JLCA
 Reader 1: Mean (range) 2.2 (−9.8–12.6) 1.2 (− 5.6–7.0) 3.3 (−6.0–10.6)
 Reader 2: Mean (range) 2.2 (− 5.3–9.7) 1.2 (− 3.9–5.9) 3.8 (−4.0–9.5)
 MAD: Mean ± SD 1.3 ± 1.2 1.2 ± 1.0 0.9 ± 0.9
  1. Intraclass correlation coefficient (ICC), two-dimensional (2D), three-dimensional (3D), weight-bearing (WB), non-weight-bearing (NWB), hip-knee-ankle angle (HKA), joint line convergence angle (JLCA), confidence interval (CI), mean absolute difference (MAD), and standard deviation (SD)