Article Figures & Data
Figures
- Figure 1
Example demonstrating a less than 2 mm breach representative of best agreement.
- Figure 2
Example demonstrating a greater than 2 mm breach representative of worst agreement.
Tables
# of patients # of screws Total 23 286 Titanium 11 93 Stainless steel 12 193 Diagnosis # of patients # of screws Inter-observer ICC (UCL-LCL) Intra-observer ICC (UCL-LCL) Degenerative 15 128 0.21 (0.44-0.05) 0.26 (0.50-0.07) Deformity 8 134 0.38 (0.61-0.18) 0.41 (0.63-0.21) ICC = Intraclass correlation coefficient; UCL = 95% upper confidence limit; LCL = 95% lower confidence limit. Only 262/286 screws were available for evaluating the effect of diagnosis on Inter- and Intrarater ICC.
Type of screw # of patients # of screws Inter-observer ICC (UCL-LCL) Intra-observer ICC (UCL-LCL) Titanium 11 93 0.306 (0.58-0.16) 0.36 (0.58-0.16) Stainless steel 12 193 0.34 (0.58-0.14) 0.40 (0.63-0.19) ICC = Intraclass correlation coefficient; UCL = 95% upper confidence limit; LCL = 95% lower confidence limit. All 286 screws were available for this comparison.
Age # of patients # of screws Inter-observer ICC (UCL-LCL) Intra-observer ICC (UCL-LCL) <18 years 12 156 0.24 (0.51-0.04) 0.25 (0.51-0.39) 18-60 years 4 53 0.37 (0.58-0.17) 0.61 (0.60-0.19) >60 years 7 52 0.16 (0.42-0.39) 0.19 (0.47-0.45) ICC = Intraclass correlation coefficient; UCL = 95% upper confidence limit; LCL = 95% lower confidence limit; 261 of 286 screws were available for studying the effect of age on the inter- and intrarater ICC.
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