Table 3.

Regression of Sensitivity and Specificity Rates of 30-Day Rehospitalization Indicator Based on MDS Onto Nursing Home Characteristics

	Gold Standard 1: 30-Day Rehospitalization Based on Inpatient Claims		Gold Standard 2: 30-Day Rehospitalization Based on Inpatient and Outpatient Claims
	(1)	(2)	(3)	(4)
	Sensitivity	Specificity	Sensitivity	Specificity
Current health deficiency	0.00602 (.908)	−0.0166* (.0391)	0.0132 (.785)	−0.0193* (.0381)
Total no. of beds	0.00272 (.381)	0.000355 (.763)	0.00562 (.0615)	0.000673 (.369)
Percentage of Medicaid patients	−0.0104 (.511)	−0.00530 (.179)	−0.0140 (.318)	−0.00603 (.0847)
Facility is part of chain	0.244 (.557)	−0.0692 (.587)	0.435 (.272)	−0.00894 (.947)
Facility is run for profit	−0.399 (.455)	−0.153 (.236)	−0.261 (.651)	−0.133 (.287)
Facility is hospital based	−7.396*** (6.39e–07)	1.285*** (9.61e–07)	−8.128*** (3.75e–08)	1.023*** (3.59e–06)
Resident acuity index	0.293 (.153)	−0.0570 (.194)	0.334 (.122)	−0.0594 (.165)
Ratio of registered nurses to total nurses	4.461** (.00626)	0.943* (.0334)	4.277* (.0120)	0.609 (.0973)
Total direct care hours per patient per day	−0.212 (.216)	0.108*** (6.76e–05)	−0.173 (.335)	0.0650** (.00731)
Occupancy rate	0.113*** (3.90e–07)	0.0110* (.0269)	0.117*** (5.80e–07)	0.00393 (.378)
% of admissions classified as low care	0.0150 (.826)	−0.0112 (.560)	−0.00491 (.937)	0.00250 (.908)
% of admissions female	0.0220 (.347)	0.00863 (.185)	0.0187 (.403)	0.0123* (.0213)
% of admissions black	0.00387 (.806)	−0.0272*** (2.99e–09)	0.0112 (.481)	−0.0275*** (4.06e–10)
% of admissions Hispanic	−0.0387 (.411)	−0.00663 (.0872)	−0.0337 (.416)	−0.00706 (.103)
No. of annual admissions per bed	−0.770*** (9.56e–11)	−0.0321 (.0576)	−0.727*** (1.37e–10)	−0.0323* (.0458)
Mean age	−0.0153 (.736)	0.0285 (.0927)	−0.0291 (.510)	0.0229 (.122)
Constant	71.42*** (0)	93.80*** (0)	70.74*** (0)	95.63*** (0)
n	13,554	14,422	13,610	14,421
R2	0.051	0.027	0.051	0.026

P values are in parentheses.

^***P < .01,

^**P < .05,

^*P < .1.