期刊
HEALTH SERVICES RESEARCH
卷 44, 期 6, 页码 2093-2105出版社
WILEY-BLACKWELL PUBLISHING, INC
DOI: 10.1111/j.1475-6773.2009.01017.x
关键词
Trust; mistrust; help seeking; underutilization; measurement; scale; factor analysis; principle components analysis
资金
- Agency for Healthcare Research and Quality [R03HS013274]
- Russell Sage Foundation
- National Center on Minority Heath and Health Disparities [P60MD00214]
Purpose We report the validation of an instrument to measure mistrust of health care organizations and examine the relationship between mistrust and health care service underutilization. Methods We conducted a telephone survey of a random sample of households in Baltimore City, MD. We surveyed 401 persons and followed up with 327 persons (81.5 percent) 3 weeks after the baseline interview. We conducted tests of the validity and reliability of the Medical Mistrust Index (MMI) and then conducted multivariate modeling to examine the relationship between mistrust and five measures of underutilization of health services. Results Using principle components analysis, we reduced the 17-item MMI to 7 items with a single dimension. Test-retest reliability was moderately strong, ranging from Pearson correlation of 0.346-0.697. In multivariate modeling, the MMI was predictive of four of five measures of underutilization of health services: failure to take medical advice (b=1.56, p <.01), failure to keep a follow-up appointment (b=1.11, p=.01), postponing receiving needed care (b=0.939, p=.01), and failure to fill a prescription (b=1.48, p=.002). MMI was not significantly associated with failure to get needed medical care (b=0.815, p=.06). Conclusions The MMI is a robust predictor of underutilization of health services. Greater attention should be devoted to building greater trust among patients.
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