Table 3

Measures of variance (random effects) obtained by two-level (patient and hospital departments) multilevel logistic regression (models 1, 2 and 3) modelling measurement of albuminuria upon contact with hospital departments by patients with diabetes (variance measures are obtained separately using the logit and probit link functions and expressed as median values and 95% credible intervals)

Model 1*Model 2*Model 3*Model 1*Model 2*Model-3*
20102011
Variance_Logit1.225 (0.789 to 2.041)0.854 (0.523 to 1.465)0.886 (0.543 to 1.537)0.945 (0.573 to 1.642)0.917 (0.545 to 1.64)0.929 (0.564 to 1.618)
ICC_Logit (%)27.25 (19.44 to 38.43)20.71 (13.79 to 30.94)21.32 (14.24 to 31.97)22.42 (14.91 to 33.43)21.9 (14.29 to 33.4)22.12 (14.71 to 33.1)
Variance_Probit0.278 (0.18 to 0.468)0.202 (0.123 to 0.345)0.198 (0.124 to 0.331)0.179 (0.111 to 0.308)0.171 (0.105 to 0.298)0.178 (0.109 to 0.309)
Variance_ Rescaled0.1910.174
ICC_Probit (%)21.75 (15.25 to 31.88)16.81 (10.95 to 25.65)16.53 (11.03 to 24.87)15.18 (9.99 to 23.55)14.6 (9.5 to 22.96)15.11 (9.83 to 23.61)
ICC_Probit Rescaled (%)1614.8
PCV_Probit (%)Reference27.3928.78Reference4.470.56
PCV_Probit Rescaled (%)31.162.61
20122013
Variance_Logit0.752 (0.449 to 1.308)0.748 (0.441 to 1.341)0.776 (0.460 to 1.348)1.026 (0.661 to 1.67)0.953 (0.607 to 1.541)0.908 (0.581 to 1.526)
ICC_Logit (%)18.7 (12.07 to 28.57)18.62 (11.88 to 29.08)19.18 (12.33 to 29.19)23.88 (16.82 to 33.81)22.57 (15.66 to 32.03)21.73 (15.09 to 31.82)
Variance_Probit0.135 (0.084 to 0.239)0.138 (0.083 to 0.241)0.134 (0.08 to 0.232)0.198 (0.129 to 0.324)0.185 (0.119 to 0.302)0.177 (0.115 to 0.284)
Variance_ Rescaled0.1310.173
ICC_Probit (%)11.9 (7.74 to 19.29)12.13 (7.66 to 19.42)11.82 (7.41 to 18.83)16.53 (11.43 to 24.47)15.61 (10.63 to 23.19)15.04 (10.31 to 22.12)
ICC_Probit Rescaled (%)11.614.7
PCV_Probit (%)Reference−2.220.74Reference6.5710.61
PCV_Probit Rescaled (%)2.5412.72
  • *Model 1: an empty model with no fixed effects. Model 2: a two-level model with accreditation. Model 3: a two-level model with accreditation, gender and age.

  • ICC, intraclass correlation coefficient; PCV, proportional change in variance.