Table 2.

Development of sample size estimations using simulation methods

	QI Score for focal Unit		Odds Ratio for focal unit
Reference sample QI score	80% hit*	95% hit	80% hit	95% hit
0.05	0.09	0.16	1.88	3.62
0.10	0.16	0.25	1.71	3.00
0.20	0.25	0.32	1.33	1.88
0.30	0.37	0.44	1.37	1.83
0.40	0.48	0.57	1.38	1.99
0.50	0.57	0.65	1.33	1.86

* Hits are defined as the correct identification of facilities providing poorer quality of care as defined by a higher QI score.