Table 3

Explaining inter-practitioner variation in the number of consultations per dietetic treatment
Intercept only model Model 1 a Model 2 b Model 3 c Model 4 d
Variance estimate 0.1909 0.1694 0.1621 0.1573 0.1378
Proportional reduction in variance estimates compared to the intercept only model 11.3% 15.1% 17.6% 27.8%
Variance partitioning coefficient
Therapist level 10.4% 9.0% 8.6% 8.2% 7.1%

a Model 1 included patients’ demographic variables.

b Model 2 included variables of model 1 + patients’ initiative.

c Model 3 included variables of model 2 + patients’ health-related variables.

d Model 4 included variables of model 3 + therapists’ demographic variables.

Tol et al.

Tol et al. BMC Health Services Research 2012 12:317   doi:10.1186/1472-6963-12-317

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