Variables	Odds Ratio	95% CI
Facility structural characteristics
Total beds in facility	1.006***	1.005–1.007
Part of a chain	1.301***	1.198–1.413
Run for profit	1.208***	1.095–1.331
Staffing levels
Any physician extender FTEs	1.281***	1.184–1.385
Total RN hours/day/patient	0.975	0.860–1.104
Total LPN hours/day/patient	1.190**	1.041–1.360
Total CNA hours/day/patient	0 757***	0.698–0.821
Facility quality indicators
% physically restrained	0.993*	0.985–1.000
% receiving antipsychotics	0.990***	0.986–0.994
Facility 30-day rehospitalization rates	0.978***	0.972–0.984
Patient demographics
Average age	1.046***	1.037–1.056
% female	1.005**	1.001–1.010
% black	1.000	0.997–1.003
% Hispanic	0.990***	0.986–0.994
Patient case mix
Baseline ADL score (0–28)	1.004	0.984–1.023
% severe cognitive impairment (cognitive performance score of 5 or 6)	0.997	0.992–1.001
% Medicaid	0.996**	0.993–0.999
% admitted from hospital	1.010***	1.007–1.014
Geographic characteristics
Reference, Northeast
Region, West	2.200***	1.866–2.593
Region, Midwest	1 492***	1.318–1.690
Region, South	1.009	0.889–1.146
Medicare managed care penetration	1.102***	1.098–1.107
Herfindahl index	0.810**	0.670–0.979
Urban	0.908*	0.822–1.004
Observations	15,353

ADL indicates activities of daily living; CNA, certified nursing assistant; FTE, full-time equivalent; LPN, licensed practical nurse; RN, registered nurse.

^*P <.1;

^**P <.05;

^***P <.01.

^aDetails of the variables are described in the Methods section. Ordered logistic regression estimates comparing “High” vs (“Low” + “None”) and (“Low” + “High”) vs “None.”