Table 3. Test-retest reliability, region 3 (N = 90), measured with the SW Kappa^a. Confidence intervals were estimated by non-parametric bootstrap procedure, based on 5000 bootstrap samples

Questions	Items	SW Kappa	95% CI
X1	Shared goals	0.39	0.27 to 0.50
X2	Patient-centred approach	0.63	0.43 to 0.79
X3	Mutual knowledge	0.42	0.17 to 0.61
X4	Trust	0.43	0.25 to 0.60
X5	Strategic guidelines	0.36	0.22 to 0.48
X6	Shared leadership	0.41	0.20 to 0.58
X7	Support for innovation	0.31	0.07 to 0.52
X8	Forums for meeting	0.56	0.41 to 0.69
X9	Protocolisation	0.32	0.19 to 0.44
X10	Information systems	0.54	0.37 to 0.67

^aSW Kappa >0.70 the threshold criterion for reliability. SW Kappa = squared weighted Kappa.