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Table 1 Reliability of using photographic technique for measuring the sagittal trunk alignment

From: Two-dimensional digital photography for child body posture evaluation: standardized technique, reliable parameters and normative data for age 7-10 years

Variables Intraobserver reproducibility Interobserver reliability
  ICC 95% CI SEM [°] P value ICC 95% CI SEM [°] P value
Left side of the body
 SS 0.93 0.88 0.97 1.0 0.957 0.93 0.86 0.97 0.9 0.658
 LL 0.97 0.95 0.99 1.0 0.975 0.97 0.95 0.99 1.0 0.987
 TK 0.93 0.87 0.96 1.2 0.974 0.94 0.89 0.97 0.9 0.811
 CI 0.96 0.92 0.98 0.7 0.953 0.92 0.83 0.96 0.9 0.540
 HP 0.90 0.83 0.95 1.0 0.990 0.84 0.74 0.92 1.2 0.984
Right side of the body
 SS 0.93 0.88 0.97 1.0 0.952 0.92 0.86 0.96 1.1 0.954
 LL 0.96 0.93 0.98 1.2 0.936 0.96 0.92 0.98 1.1 0.852
 TK 0.91 0.85 0.95 1.3 0.990 0.92 0.86 0.96 1.2 0.726
 CI 0.93 0.87 0.96 0.9 0.931 0.88 0.79 0.94 1.1 0.689
 HP 0.94 0.89 0.97 0.7 0.989 0.85 0.75 0.92 1.0 0.913
Mean of the left and right side of the body
 SS 0.95 0.91 0.97 0.9 0.977 0.94 0.89 0.97 0.9 0.836
 LL 0.97 0.95 0.98 1.0 0.952 0.98 0.95 0.99 0.9 0.936
 TK 0.93 0.88 0.97 1.1 0.986 0.92 0.86 0.96 0.9 0.777
 CI 0.96 0.92 0.98 0.7 0.950 0.92 0.84 0.96 0.9 0.622
 HP 0.94 0.89 0.97 0.8 0.995 0.89 0.80 0.94 1.0 0.979
  1. ICC intraclass correlation coefficient, CI confidence interval, SEM standard error of measurement
  2. *Statistically significant difference (P < .05)