Table 2.

Nursing Home Incontinence Quality Measures (QMs) and Case Mix in the First Quarter (Q1) of 2005 (n=10,437 Nursing Homes) and Stability over the Second Quarter (Q2) and Third Quarter (Q3) of 2005

	Descriptive Statistic in Q1				Stability (Pearson 's Correlation Coefficient)
	Mean	SD	Minimum	Maximum	Between Q1 and Q2	Between Q1 and Q3
CMS QM rate (%)	47.36	15.04	0	94.12	r=0.92	r=0.87
Risk-adjusted QM rate (%)	47.12	10.88	0	92.53	r=0.85	r=0.78
Case mix
% of residents with age ≥85 years	47.90	17.93	0	94.59	r=0.96	r=0.95
% of female residents	71.14	13.05	0	100.00	r=0.94	r=0.93
% of residents with cognitive skill impairment	53.40	17.26	0	100.00	r=0.93	r=0.90
% of residents only able to make self understood sometimes	11.73	9.61	0	94.12	r=0.90	r=0.86
% of residents rarely able to make self understood	1.01	1.91	0	42.11	r=0.76	r=0.67
Average number of ADLs	11.55	2.35	0	19.54	r=0.96	r=0.93

ADLs, activities of daily living; CMS, Centers for Medicare and Medicaid Services; QM, quality measure.