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Predictors of comprehension during surgical informed consent.

Abstract：

BACKGROUND:Patient comprehension during surgical informed consent remains problematic. Using data from our randomized trial of methods to improve informed consent comprehension, we performed an additional analysis to define independent factors associated with improved patient understanding. STUDY DESIGN:Patients scheduled for 1 of 4 elective operations (total hip arthroplasty [n = 137], carotid endarterectomy [n = 178], laparoscopic cholecystectomy [n = 179], or radical prostatectomy [n = 81]) at 7 Department of Veterans Affairs (VA) medical centers were enrolled. All informed consent discussions were performed using iMedConsent (Dialog Medical), the VA's computerized informed consent platform. Using a unique module within iMedConsent, we randomized patients to repeat back (RB), requiring correct reiteration of procedure-specific facts, or standard (STD) iMedConsent. Patient comprehension was tested after the informed consent discussion using procedure-specific questionnaires. Time spent completing the informed consent process was measured using time stamps within iMedConsent. Multiple linear regression identified factors independently associated with improved comprehension. RESULTS:We enrolled 575 patients (276 RB, 299 standard); 93% were male, 74% were Caucasian, and 89% had at least a high school education. Independent factors associated with improved comprehension included race (p < 0.01), ethnicity (p < 0.05), age (p < 0.02), operation type (p < 0.01), group assignment (+/- RB; p < 0.05), and total consent time (p < 0.0001). Patient comprehension was maximized when informed consent took between 15 and 30 minutes. RB's positive impact on patient comprehension was weaker in the analysis including consent time. CONCLUSIONS:Comprehension during informed consent discussions may be limited in individuals with potential language difficulty due to ethnicity or education. Total consent time was the strongest predictor of patient comprehension. Affording adequate time for informed consent discussions and using informed consent adjuncts such as RB may enhance comprehension in such individuals.

journal_name

J Am Coll Surg

journal_title

Journal of the American College of Surgeons

authors

Fink AS,Prochazka AV,Henderson WG,Bartenfeld D,Nyirenda C,Webb A,Berger DH,Itani K,Whitehill T,Edwards J,Wilson M,Karsonovich C,Parmelee P

doi

10.1016/j.jamcollsurg.2010.02.049

subject

Has Abstract

pub_date

2010-06-01 00:00:00

pages

919-26

issue

6

eissn

1072-7515

issn

1879-1190

pii

S1072-7515(10)00177-8

journal_volume

210

pub_type

杂志文章,多中心研究,随机对照试验

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