TABLE 3.

Outcomes of Patients Based on Presence of a Pneumonia CPG

Group	Median [IQR]	P	Mean Difference (95% CI)	P a
Length of hospitalization, d
No guideline	2 [1–3]	.269	Ref
Guideline	2 [1–3]		−0.05 (–0.29 to 0.20)	.745
Total cost, index hospitalization, $
No guideline	10 015 [6304–15 931]	.773	Ref
Guideline	9361 [6274–14 989]		1667 (–1747 to 5081)	.339
Total cost, episode of illness, $
No guideline	13 265 [6477–16 281]	.553	Ref
Guideline	9478 [6332–15 292]		1843 (–1861 to 5547)	.329
Group	Percent (95% CI)	P	OR (95% CI)	P b
Readmission rate, %
No guideline	2.3 (2.0–2.6)	.367	Ref
Guideline	2.1 (1.7–2.5)		0.89 (0.69 to 1.14)	.396

^a P values comparing medians are unadjusted and aggregate (combining across hospitals).

^b P values are adjusted for hospital clustering.