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Table 8 Intra Class Correlations and explained variances (in percentages), calculated on basis of prediction

From: Inter-doctor variations in the assessment of functional incapacities by insurance physicians

Dependent variables

NSCE

(n = 83755)

FIS

(n = 64190)

MWDC

(n = 64190)

ICC IP-level

7.1%

11.8%

6.5%

ICC Office-level

1.6%

0.0%

0.0%

R2 total model

19.1%

18.5%

37.2%

Contribution in R2 by client variables*

10.4%

6.7%

30.7%

  1. NSCE = no sustainable (long-term) functional capacities anymore, or restrictions in working hours up to 30 hours (binominal); FIS = functional incapacity score (scale); MWDC = maximum work disability classes 80%-100% (binominal); ICC = Intra Class Correlation; IP = Insurance Physician; R2 = explained variances. The ICCs for NSCE and MWDC were estimated with logistic regression; that of FIS with Poisson regression.
  2. *calculated as the difference between explained variances and ICCs (IP-level and office level).