Multisomatoform disorder: agreement between patient and physician report of criterion symptom explanation.

OBJECTIVE: To determine the level of agreement between patients and expert physicians in whether criterion multisomatoform (MSD) symptoms are explained.
METHODS: We systematically collected reports from 280 primary care patients about whether they had suffered from any of 15 criterion MSD symptoms in the past month and whether they had received a medical explanation from a physician for positive criterion symptoms. The research team compared MSD symptom diagnoses derived from patient report with MSD symptom diagnoses derived from an expert physician report.
RESULTS: MSD symptom diagnoses derived from patient report had 98.7% sensitivity, 97.9% specificity, 89.3% positive predictive value, and 99.7% negative predictive value compared with MSD symptom diagnoses derived from an expert physician report. Analysis demonstrated that 15.0% of patients met symptom criteria for MSD, according to patient and physician report; 83.0% failed to meet symptom criteria for MSD, according to patient and physician report; 1.8% of patients met symptom criteria for MSD, according to patient report but not physician report, while 0.2% met symptom criteria for MSD according to physician report but not by patient report.
CONCLUSION: Patients demonstrated high agreement with a physician expert in somatization about whether criterion MSD symptoms are explained, suggesting revised screeners may accurately identify somatizing patients.