Table 1

Mean differences in domain scores within and between trusts

Domain	Sum of squares	d.f.	Mean squares	F	Significance
***p<0.001.
Improving quality
Between	473.791	99	4.786	2.604	0.000***
Within	1979.674	1077	1.838
Total	2453.465	1176
Managing risks
Between	520.994	99	5.263	2.606	0.000***
Within	2175.292	1077	2.02
Total	2696.286	1176
Improving performance
Between	1190	99	12.023	4.340	0.000***
Within	2983	1077	2.77
Total	4173.758	1176
Corporate accountability
Between	794.347	99	8.024	4.196	0.000***
Within	2059.495	1077	1.912
Total	2853.842	1176
Leadership and collaboration
Between	635.322	99	6.417	3.340	0.000***
Within	2069.364	1077	1.921
Total	2704.686	1176
Structure
Between	521.476	99	5.267	3.442	0.000***
Within	1648.264	1077	1.530
Total	2169.739	1176
Process
Between	521.611	99	5.269	3.378	0.000***
Within	1680.039	1077	1.560
Total	2201.650	1176
Outcome
Between	500.356	99	5.054	2.804	0.000***
Within	1941.514	1077	1.803
Total	2441.870	1176