Table 3.

Study Outcomes

	Original Consent (n=590)	ePRISM Consent (n=527)	Hospital-Average Odds Ratio (95% CI)	P-value	Median Relative Difference in OR Across Hospitals
Reviewing and Understanding
Reviewed consent form	263 (45.4%)	376 (72.0%)	2.85 (1.05, 7.72)	0.04	3.20
Description of treatments were completely clear*	59 (25.1%)	184 (49.3%)	2.24 (0.88, 5.72)	0.08	2.64
Description of complications were completely clear*	63 (27.2%)	186 (50.3%)	2.19 (1.03, 4.70)	0.04	2.00
Completely understood the information*	72 (30.6%)	194 (52.0%)	2.14 (1.03, 4.46)	0.04	2.01
Consent was easy to read*	55 (23.5%)	167 (47.6%)	2.98 (1.38, 6.45)	0.01	2.04
Reading consent did not make me nervous at all*	148 (62.2%)	292 (77.0%)	1.84 (0.88, 3.88)	0.09	1.99
Knowledge transfer
Correctly identified purpose of the procedure	542 (93.4%)	509 (97.0%)	2.17 (1.12, 4.20)	0.02	1.08
Correctly identified purpose of balloon	460 (79.9%)	457 (87.0%)	1.86 (1.03, 3.37)	0.04	1.58
Correctly identified purpose of stent	544 (94.3%)	496 (94.8%)	0.95 (0.35, 2.57)	0.89	1.53
Recalled being told % risk of death	206 (44.5%)	299 (70.4%)	2.79 (0.82, 9.51)	0.09	4.02
Recalled being told % risk of bleeding	177 (39.5%)	284 (70.0%)	3.88 (0.79, 19.00)	0.08	6.19
Patient Engagement in Shared decision-making
Who should decide your treatment?			0.86 (0.57, 1.29)	0.43	1.45
Doctor alone	63 (10.8%)	35 (6.7%)
Mostly the doctor	93 (15.9%)	113 (21.6%)
Doctor and patient equally	325 (55.7%)	315 (60.1%)
Mostly the patient	58 (9.9%)	46 (8.8%)
Patient alone	45 (7.7%)	15 (2.9%)
Who decided to use drug eluting or bare metal stent?			2.13 (1.02, 4.43)	0.05	2.22
Doctor alone	411 (71.5%)	267 (51.8%)
Mostly the doctor	82 (14.3%)	123 (23.9%)
Doctor and patient equally	68 (11.8%)	108 (21.0%)
Mostly the patient	6 (1.0%)	7 (1.4%)
Patient alone	8 (1.4%)	10 (1.9%)
Discussed stent type with doctor before treatment	179 (31.2%)	300 (57.8%)	2.71 (1.18, 6.26)	0.02	2.60

^*Denominator restricted to those who reviewed the consent form.