1. Measuring patient knowledge of the risks and benefits of prostate cancer screening.
- Author
-
Radosevich DM, Partin MR, Nugent S, Nelson D, Flood AB, Holtzman J, Dillon N, Haas M, and Wilt TJ
- Subjects
- Aged, Attitude to Health, Comorbidity, Discriminant Analysis, Health Knowledge, Attitudes, Practice, Humans, Male, Middle Aged, Midwestern United States, Prostate-Specific Antigen blood, Prostatic Neoplasms epidemiology, Prostatic Neoplasms therapy, Psychometrics, Risk Factors, Sensitivity and Specificity, Treatment Outcome, Veterans education, Educational Measurement methods, Educational Measurement standards, Mass Screening adverse effects, Mass Screening psychology, Mass Screening standards, Patient Education as Topic standards, Prostatic Neoplasms diagnosis, Surveys and Questionnaires standards
- Abstract
This manuscript describes the development and validation of measures assessing patient knowledge about the risks and benefits of prostate cancer (CaP) screening. The measures described include a 10-item knowledge index and four single-item measures, used in previous studies, that assess knowledge of: CaP natural history and treatment efficacy, expert disagreement over the value of CaP screening, and the accuracy of the prostate specific antigen (PSA) test for CaP. We assessed the validity and reliability of these measures on a sample of 1152 male veteran patients age 50 and older. All knowledge index items had acceptable levels of discrimination, difficulty, and reliability. The index demonstrated strong evidence for construct and criterion validity. Much weaker validity evidence was found for the four single-item knowledge questions. The 10-item index developed in this study provides a valid and reliable tool for assessing patient knowledge of the risks and benefits of CaP screening.
- Published
- 2004
- Full Text
- View/download PDF