Table 3 Studies Testing Patient Knowledge Regarding Anticoagulation

Hu et al³⁰ 2006

Large urban teaching hospital 100 mechanical valve patients

20, True-False

Scripted telephone survey Trained medical student

Zeolla et al¹² 2006 OAK test

U.S., Recruited from 4 pharmacies and 2 clinics 122 volunteers

20, Multiple choice, Validity and reliability testing

Self administered Excluded illiterate patients 7th grade reading level

Roche-Nagle, Chambers³¹ 2006

Dublin teaching hospital anticoagulation clinic 150 consecutive patients

8, Specific answers

Standardized interview

Davis et al¹¹ 2005

Two NYC anticoagulation clinics 52 patients

18, Multiple choice

Self administered Single visit Excluded low literacy patients

Briggs et al³² 2005 AKA test

Two Chicago inner city, pharmacist-managed anticoagulation clinics 60 patients

28, Multiple choice, Validity and reliability testing

Self administered Excluded illiterate patients 7th grade reading level

Voller et al¹⁵ 2004

Three German 3 teaching centers 76 patients

13, Multiple choice

Questions not available

Nadar et al³³ 2003

3 U.K. teaching hospital anticoagulation clinics 180 patients who attended the clinic > 5 times

9, Short answer

Language concordance, personal interview

Tang et al⁹ 2003

1 Hong Kong anticoagulation clinic 56 patients months postdischarge

9, Dichotomous and open-ended

2 rehearsed pharmacy students Leading questions avoided Scoring details

Cheah et al³⁴ 2003

U.S. teaching hospital center 50 inpatients

10, Open-ended

Telephone survey

Singla et al¹⁸ 2003

U.S. anticoagulation center 180 patients

4, Yes/No

Immediately after class

Wilson et al³⁵ 2003

U.S. urban university hospital anticoagulation clinic 65 patients

20, Short answer

Investigator interview one week post discharge. Instrument not available

Barcellona et al³⁶ 2002

Italian thrombosis center 216 patients taking warfarin for 6 months

6, Multiple choice

Self-administered

Waterman et al³⁷ 2001

U.S. managed care organization 530 patients

11, True-False or short answer

Telephone-based interview at enrollment

Wyness et al³⁸ 1990

U.S. university hospital vascular surgery unit 23 patients

Interview soliciting explanation

Before discharge, and 1 & 3 months after discharge Oral interview

Stone et al²⁴ 1989

Hospital-based anticoagulation clinic 22 patients

18, True-False

Self-administered

Rankin³⁹ 1979

University hospital cardiac rehabilitation unit 19 patients

14, Multiple choice

3–4 days later and 3 weeks later Investigator administered

Clark et al⁴⁰ 1972

U.S. university hospital, 45 patients

15, Multiple choice

Self administered