| Visual versus electronical | 2D versus 3D | ||
---|---|---|---|---|
within 2D | within 3D | within visual | within electronical | |
Value | Value | Value | Value | |
Number of paired observations | 839a | 840a | 1680b | 1679c |
Mean distance (SD) d1 from 0M1 for the electronical measurement | 15.8 (2.97) | 13.1 (3.69) | Â | Â |
Mean distance (SD) d2 from 0M1 for the visual measurement | 14.9 (3.28) | 13.4 (2.88) | Â | Â |
Mean distance (SD) d1 from 0M1 for the 2D measurement | Â | Â | 15.0 (3.25) | 15.9 (2.96) |
Mean distance (SD) d2 from 0M1 for the 3D measurement | Â | Â | 13.3 (2.82) | 13.3 (3.71) |
Difference d2 – d1 (standard deviation) | −0.89 (2.77) | 0.22 (3.05) | −1.64 (1.98) | −2.58 (1.70) |
Agreement within |d(0M1)| < 2.7, proportion (95% CI) | 69.1 (65.9–72.2)** | 53.3 (49.9–56.7)* | 66.5 (64.2–68.8)** | 47.1 (44.6–49.5)* |
Agreement within |d(0M1)| < 3.7, proportion (95% CI) | 86.3 (83.8–88.5)*** | 86.3 (83.8–88.6)*** | 80.9 (78.9–82.7)**,*** | 84.0 (82.2–85.8)*** |
Limits of agreement | −6.33 – 4.55 | −5.76 – 6.19 | − 5.53 – 2.25 | − 5.90 – 0.75 |
Number of observations outside the limits of agreement total (lower; higher) | 58d (33; 25) | 60d (30; 30) | 82e (21; 61) | 49e (34; 15) |
ICC(2,1) (95% CI) | 0.58 (0.50–0.65)*,** | 0.58 (0.53–0.62)*,** | 0.69 (0.27–0.84)-,*** | 0.67 (−0.06–0.88)--,*** |
ICC(3,1) (95% CI) | 0.61 (0.56–0.65)*,** | 0.58 (0.53–0.62)*,** | 0.79 (0.77–0.81)**,*** | 0.87 (0.86–0.88)*** |