Journal
JOURNAL OF GENERAL INTERNAL MEDICINE
Volume 21, Issue 7, Pages 671-677Publisher
SPRINGER
DOI: 10.1111/j.1525-1497.2006.00460.x
Keywords
medically unexplained symptoms; somatization; mental health in primary care; provider-patient relationship; satisfaction; patient-centered
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OBJECTIVE: There is no proven primary care treatment for patients with medically unexplained symptoms (MUS). We hypothesized that a long-term, multidimensional intervention by primary care providers would improve MUS patients' mental health. DESIGN: Clinical trial. SETTING: HMO in Lansing, MI. PARTICIPANTS: Patients from 18 to 65 years old with 2 consecutive years of high utilization were identified as having MUS by a reliable chart rating procedure; 206 subjects were randomized and 200 completed the study. INTERVENTION. From May 2000 to January 2003, 4 primary care clinicians deployed a 12-month intervention consisting of cognitive-behavioral, pharmacological, and other treatment modalities. A behaviorally defined patient-centered method was used by clinicians to facilitate this treatment and the provider-patient relationship. MAIN OUTCOME MEASURE: The primary endpoint was an improvement from baseline to 12 months of 4 or more points on the Mental Component Summary of the SF-36. RESULTS: Two hundred patients averaged 13.6 visits for the year preceding study. The average age was 47.7 years and 79.1% were females. Using intent to treat, 48 treatment and 34 control patients improved (odds ratio [OR] = 1.92, 95% confidence interval [CI]: 1.08 to 3.40; P = .02). The relative benefit (relative risk for improving) was 1.47 (CI: 1.05 to 2.07), and the number needed to treat was 6.4 (95% CI: 0.89 to 11.89). The following baseline measures predicted improvement: severe mental dysfunction (P < .001). severe body pain (P = .039), nonsevere physical dysfunction (P = .003), and at least 16 years of education (P = .022); c-statistic = 0.75. CONCLUSION. The first multidimensional intervention by primary care clinicians led to clinically significant improvement in MUS patients.
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