- Volume 10 Issue 1
Development and Validation of a Knowledge Scale for Patients with Breast Cancer (KS-Br)
환자교육을 위한 유방암 환자의 지식측정 도구개발
- Lee, Keon-Suk (Center for Breast Cancer, National Cancer Center) ;
- Lee, Ran (Department of Nursing, National Cancer Center) ;
- Kim, Soo-Hyun (Department of Nursing, Inha University)
- Received : 2009.09.09
- Accepted : 2010.01.25
- Published : 2010.02.27
Purpose: The purpose of this study was the development and validation of knowledge scale for patients with breast cancer (KS-Br) in Korea. Methods: The process included the construction of a conceptual framework, generation of preliminary items, and the test of validity and reliability of the scale. Thirty-seven items were developed through an evaluation process by 10 experts and 24 items were finally confirmed through item analysis. Psychometric testing was performed with a convenient sample of 303 women with breast cancer. The data was analyzed using independent t-test, Pearson's correlation, and calculation of KR-20. Results: Participants averaged 70.8% correct on the test. The KS-Br has 24 items consisting of 5 categories: incidence of breast cancer, diagnosis and treatment, symptom management, sexuality, and maintenance of daily life. Validity was supported by the use of content validity, known-group technique, and criterion-related validity. Women who had undergone education intervention scored significantly higher than women who had not (p<.001). KS-Br scores were significantly correlated with those of Mishel's Illness Uncertainty Scale (r=-.214, p<.001). Internal consistency of the KS-Br was appropriate (KR20=.805). Conclusion: This study reveals that the KS-Br is reliable and valid scale to measure the knowledge of breast cancer. Therefore, this scale can be effectively utilized to assess the knowledge of patients with breast cancer regarding their disease.
- National Cancer Information Center. Cancer survival. Available at: http://www.cancer.go.kr/cms/statics/survival_rate/ index.html [accessed on 2009 January 5].
- Korea Breast Cancer Society, 2006. Available at: http://www. kbcs.or.kr [accessed on 2008 December 5].
- Carpenter JS, Elam JL, Ridener SH, Carney PH, Cherry GJ, Cucullu HL. Sleep, fatigue and depressive symptom in breast cancer survivors and matched healthy woman experiencing hot flahes. Oncol Nurs Forum 2004;31:591-8. https://doi.org/10.1188/04.ONF.591-598
- Jung PJ. Surgical treatment for breast cancer. Hanyang J Med 2002;22:33-9.
- Lee IS. Uncertainty, appraisal and quality of life in patients with breast cancer across treatment phase [dissertation]. Seoul:Yonsei Univ.;2004.
- Todd J, Topping A. A survey of written information on the use if post-operative exercise after breast cancer surgery. Physiotherapy 2005;91:87-93. https://doi.org/10.1016/j.physio.2004.09.022
- Takahashi M, Kai I. Sexuality after breast cancer treatment: changes and coping strategies among Japanese survivors. Social science & Medicine 2005;61:1278-90. https://doi.org/10.1016/j.socscimed.2005.01.013
- Ahn SH, Park BW, Noh DY, Nam SJ, Lee ES, Lee MK, et al. Health-related quality of life in disease-free survivors of breast cancer with the general population. Ann Oncol 2007;18:173- 82. Erratum in Ann Oncol 2009;20:1753-4. https://doi.org/10.1093/annonc/mdp007
- Kim SH, Son BH, Hwang SY, Han W, Yang JH, Lee S, et al. Fatigue and depression in disease-free breast cancer survivors: prevalence, correlates, and association with quality of life. J Pain Symptom Manage 2008;35:644-55. https://doi.org/10.1016/j.jpainsymman.2007.08.012
- Ferrell BR, Grant M, Funk B, Otis-Green S, Garcia N. Quality of life in breast cancer. Part I: physical and social well-being. Cancer Nurs 1998;20:398-408.
- Budin WC, Cartwright-Alcarese F, Hoskins CN. The breast cancer treatment response inventory: development, psychometric testing, and refinement for use in practice. Oncol Nurs Forum 2008;35:209-15. https://doi.org/10.1188/08.ONF.209-215
- Erci B. Psychometric evaluation of self-assessed support needs of women with breast cancer scale. J Clin Nurs 2007;16:1927- 35. https://doi.org/10.1111/j.1365-2702.2007.01825.x
- Michael YL, Kawachi I, Berkman LF, Homes MD, Colditz GA. The persistent impact of breast carcinoma on functional health status. prospective evidence from the Nurses Health Study. Cancer 2000;89:2176-86. https://doi.org/10.1002/1097-0142(20001201)89:11<2176::AID-CNCR5>3.0.CO;2-6
- Yi MS, Lee EO, Park YS, Choe KJ, Noh DY. A descriptive study on educational and counceling needs of breast cancer on the treatment stage. J Korea Oncol Nurs 2003;2:5-14.
- Cimprich B, Janz NK, Northouse L, Wren PA, Given B. Taking charge: a self-management program for women following breast cancer treatment. Psycho-oncology 2005;14:704-17. https://doi.org/10.1002/pon.891
- Williams SA, Schreier AM. The effect of education in managing side effects in women receiving chemotherapy for treatment of breast cancer. Oncol Nurs Forum 2004;31:24-31. https://doi.org/10.1188/04.ONF.E24-E31
- Choi JS, Seo YM, Kwon IS. Effects of education on knowledge and practice of caregivers of the stroke patient. J Korea Acad Nurs 2006;36:1175-82.
- Yoo MS, Lee H, Yoon JA. Effects of a cognitive-behavioral nursing intervention on anxiety and depression in women with breast cancer undergoing radiotherapy. J Korean Acad Nurs 2009;39:157-65. https://doi.org/10.4040/jkan.2009.39.2.157
- Kim CJ, Hur HK, Kang DH, Kim BH. The effects of psychosocial interventions to improve stress and coping in patients with breast cancer. J Korean Acad Nurs 2006;36:169-78.
- Park HS, Cho GY, Park KY. The effects of a rehabilitation program on physical health, physiological indicators and quality of life in breast cancer mastectomy patients. J Korean Acad Nurs 36:310-20.
- Aaronson NK, Ahmedzai SB, Bullinger M, Cull A, Duez NJ, Filiberti A, et al. The european organization for research and treatment of cancer QLQ-C30: a quality-of-life instrument for use in international clinical trials in oncology. J Natl Cancer Ins 1993;85:365-76. https://doi.org/10.1093/jnci/85.5.365
- Fallowfield LJ, Leaity SK, Howell A, Benson S, Cella D. Assessment of quality of life in women undergoing hormonal therapy for breast cancer: validation of an endocrine symptom subscale for the FACT-B. Breast Cancer Res Treat 1999;55:189-99.
- Alfano CM, McGregor BA, Kuniyuki A, Reeve BB, Bowen DJ, Wilder SA, et al. Psychometric evaluation of the brief cancer impact assessment among breast cancer survivors. Oncology 2006;70:190-202. https://doi.org/10.1159/000094320
- Halkett GK, Kristjanson LJ. Validity and reliability testing of two instruments to measure breast cancer patients' concerns and information needs relating to radiation therapy. Radiat Oncol 2007;2:43-53. https://doi.org/10.1186/1748-717X-2-43
- Kim JO. Development of needs assessment tool for education among patients who received mastectomy [dissertation]. Seoul: Catholic Univ.;1999.
- Streiner DL, Norman GR. Health measurement scales: a practical guide to their development and use. New York:Oxford university Press;1989.
- Mishel MH. Uncertainty in illness. Image J Nurs Sch 1988;29: 225-32.
- Lee EO, IM NY, Park HA. Statistical analysis and nursing medical research. Seoul:Soomoonsa;1998.
- Carmines E, Zeller R. Reliability and validity assessment. In Quantitative Applications in the Social Sciences. Beverly Hills, California:Sage;1979.
- Polit DF, Beck CT. The content validiti index: are you sure you know what's being reorted? Critique and recommendations. Res Nurs Health 2006;29:489-97. https://doi.org/10.1002/nur.20147