Psychometric properties of a brief measure of autonomy support in breast cancer patients

被引:24
|
作者
Shumway, Dean [1 ]
Griffith, Kent A. [1 ]
Jagsi, Reshma [1 ]
Gabram, Sheryl G. [2 ]
Williams, Geoffrey C. [3 ]
Resnicow, Ken [4 ]
机构
[1] Univ Michigan, Sch Med, Ann Arbor, MI 48109 USA
[2] Emory Univ, Sch Med, Atlanta, GA 30303 USA
[3] Univ Rochester, Sch Med, Rochester, NY 14611 USA
[4] Univ Michigan, Sch Publ Hlth, Ann Arbor, MI 48109 USA
来源
BMC MEDICAL INFORMATICS AND DECISION MAKING | 2015年 / 15卷
关键词
Autonomy support; Breast cancer; Health Care Climate Questionnaire; SELF-DETERMINATION THEORY; QUALITY-OF-LIFE; MOTIVATIONAL PREDICTORS; MEDICATION ADHERENCE; CLINICAL-TRIAL; SATISFACTION; HEALTH; COMMUNICATION; OUTCOMES; SURGERY;
D O I
10.1186/s12911-015-0172-4
中图分类号
R-058 [];
学科分类号
摘要
Background: The Health Care Climate Questionnaire measures patient perceptions of their clinician's autonomy supportive communication. We sought to evaluate the psychometric properties of a modified brief version of the Health Care Climate Questionnaire (mHCCQ) adapted for breast cancer patients. Methods: We surveyed 235 women aged 20-79 diagnosed with breast cancer within the previous 18 months at two cancer specialty centers using a print questionnaire. Patients completed the mHCCQ for their surgeon, medical oncologist, and radiation oncologist separately, as well as the overall treatment experience. Exploratory factor analysis (EFA) using principal components was used to explore the factor structure. Results: One hundred sixty out of 235 (68.1 %) women completed the survey. Mean age was 57 years and time since diagnosis was 12.6 months. For surgeon, medical oncologist, and radiation oncologist ratings separately, as well as overall treatment, women rated 6 dimensions of perceived physician autonomy support. Exploratory factor analysis indicated a single factor solution for each clinician type and for the overall experience. Further, all six items were retained in each clinician subscore. Internal consistency was 0.93, 0.94, 0.97, and 0.92 for the overall, surgeon, medical oncologist, and radiation oncologist scales, respectively. Hierarchical factor analysis demonstrated that a summary score of the overall treatment experience accounts for only 52 % of the total variance observed in ratings of autonomy support for the three provider types. Conclusions: These results describe the first use of the mHCCQ in cancer patients. Ratings of the overall treatment experience account for only half of the variance in ratings of autonomy support, suggesting that patients perceive and report differences in communication across provider types. Future research is needed to evaluate the relationship between physician communication practices and the quality of decision making, as well as other outcomes among cancer patients.
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页数:8
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