Table 5.

Explanatory Models for Mean Pain Intensity over 72 Hours and during the First 24 hours

	Over 72 Hours		During First 24 Hours
Variable	β	p-Value	β	p-Value
Treatment group	−1.5378	<.0001	−2.532	<.0001
Baseline score	0.5207	<.0001	0.5264	<.0001
Hospital size (small)	−1.0179	<.0001	−1.7347	<.0001
Patient age	−0.0286	.0003	NS	NS
Hospital location (rural)	2.9918	<.0001	4.2862	<.0001
HCFA case-mix index	3.2358	<.0001	4.6065	<.0001
M.D. years since residency	−0.2290	<.0001	−0.3280	<.0001
R.N. years experience	1.7379	<.0001	NS	NS
Nurse skill mix	−0.6185	<.0001	−0.9676	<.0001
M.D. attitudes to guidelines	−0.4057	<.0001	−0.6120	<.0001