Table 2.

Odds Ratios for Proportion of Clostridioides difficile PCR Test Orders Within 48 Hours of Laxative Use

Model Parameter	Odds Ratio (95% CI)	P Value
Harborview Medical Center
Intervention level change	0.45 (0.29–0.69)	<.001
Preintervention, pre-CDI program slope (per month)	1.0 (0.97–1.02)	.8
Preintervention, post-CDI program slope (per month)	0.93 (0.91–0.96)	<.001
Postintervention slope (per month)	1.01 (0.96–1.07)	.67
University of Washington Medical Center
Intervention level change	0.78 (0.53–1.15)	.45
Preintervention slope (per month)	0.97 (0.96–0.99)	<.001
Postintervention slope (per month)	0.92 (0.87–0.98)	.01

Abbreviations: CDI, C difficile infection; CI, confidence interval; PCR, polymerase chain reaction.