Table 2.

Mean and Standard Error of Mean of Nurse Hours Per Patient Day and Uncompensated Care Before, During the Transition to, and After Staffing Regulations, By Staffing Quartile.^a

	Staffing Quartileb	Pre-Regulation		Transition		Post-Regulation
		Mean	S.E.	Mean	S.E.	Mean	S.E.
Nurse HPPD	1	5.92	0.09	6.37	0.12	7.27	0.15
	2	6.61	0.09	6.93	0.16	7.93	0.16
	3	7.15	0.09	7.55	0.14	8.35	0.17
	4	8.58	0.13	8.35	0.15	8.82	0.19
Difference from Pre-Regulation Period	1			0.47***	0.092	1.41***	0.113
	2			0.35**	0.126	1.31***	0.141
	3			0.39***	0.103	1.18***	0.140
	4			−0.25	0.133	0.22	0.194
RN HPPD	1	5.35	0.11	5.69	0.14	6.48	0.18
	2	5.96	0.12	6.27	0.18	7.17	0.18
	3	6.37	0.12	6.89	0.17	7.77	0.19
	4	7.66	0.16	7.60	0.19	8.11	0.22
Difference from Pre-Regulation Period	1			0.38***	0.01	1.20***	0.12
	2			0.33**	0.12	1.20***	0.14
	3			0.48***	0.12	1.34***	0.15
	4			−0.09	0.13	0.44*	0.20
UC Ratio	1	0.067	0.012	0.062	0.010	0.061	0.009
	2	0.059	0.007	0.053	0.006	0.059	0.006
	3	0.047	0.007	0.050	0.008	0.049	0.007
	4	0.052	0.005	0.051	0.005	0.057	0.005
Difference from Pre-Regulation Period	1			−0.002	0.003	0.001	0.004
	2			−0.001	0.002	0.004	0.002
	3			0.003	0.002	0.005*	0.002
	4			0.001	0.002	0.006**	0.002
UC Growth Rate	1	0.132	0.027	0.093	0.020	0.059	0.018
	2	0.050	0.025	0.105	0.031	0.062	0.022
	3	0.073	0.023	0.092	0.028	0.063	0.023
	4	0.051	0.017	0.103	0.020	0.099	0.017
Difference from Pre-Regulation Period	1			−0.083*	0.040	−0.113**	0.036
	2			0.016	0.047	− 0.011	0.039
	3			−0.009	0.047	−0.018	0.039
	4			0.056	0.035	0.040	0.027

^aStatistical significance indicated for differences from pre-regulation period;

^*significant at the 0.05 level,

^**significant at the 0.01 level, and

^***significant at the 0.001 level.

^bStaffing quartile 1 contains the hospitals that, relative to the staffing regulations, had the largest percent staffing shortfall or smallest staffing surplus.