Table 4.

Comparison of 30-day readmission rates for patients discharged from the Behavioral Health Unit

Year	Discharges	30-day readmissions	Readmission rate
2008-2009a	845	42	4.97%c
2009-2010a	918	45	4.90% c,d,e
2010-2011b Total	1,105	41	3.71% d
2010-2011b Excluded	601	29	4.83% f
2010-2011b Program	504	12	2.38% e,f

^aData from years prior to program implementation.

^bData during program implementation.

^cχ² = 0.004, df = 1; P = .947.

^dχ² = 1.79, df = 1; P = .186.

^eχ² = 5.447, df = 1; P = .020.

^fχ² = 8.515, df = 1; P = .004.