Table 3

Multilevel linear regression model for K10 at 12 months*
Parameters Baseline model Estimate for main model P value
B (SE) 95% CI B (SE) 95% CI
Intercept 15.276 5.799
Intervention -1.137(0.392) -1.905, -0.369 P <0.01
Baseline K10 0.611(0.035) 0.542, 0.680 P < 0.001
Unable to work 3.867(0.890) 2.123, 5.611 P < 0.001
Variance between practices 1.850(0.993) 0.00, 3.796 0.044(0.259) 0.00, 0.552
Variance between patients 32.876(2.063) 28.833, 36.919 19.068(1.191) 16.734, 21.402

*After list-wise deletion of missing values 536 patients and 30 practices were used in the analysis.

Note: B = regression coefficient; SE = standard error.

McKenzie et al.

McKenzie et al. BMC Family Practice 2013 14:190   doi:10.1186/1471-2296-14-190

Open Data