Table 4

Observer effects

Observer Mean residual (SEM) p value
10.011 (0.038)NS
2−0.522 (0.076)<0.0001
3−0.011 (0.045)NS
4−0.022 (0.040)NS
5−0.011 (0.052)NS
60.033 (0.042)NS
  • Mean residuals for each observer are relative to the “gold standard” KOSCHI score (calculated as the mean observers' scores excluding observer 2). KOSCHI scores have been treated as a continuous variable (1 to 8) for this analysis. Statistical significance of difference from zero by t test.