TY - JOUR KW - Anxiety Disorders/diagnosis/epidemiology/psychology KW - Comorbidity KW - Depressive Disorder/diagnosis/epidemiology/psychology KW - Diagnostic and Statistical Manual of Mental Disorders KW - Health Status KW - Humans KW - International Classification of Diseases KW - Personality Inventory/statistics & numerical data KW - Portugal/epidemiology KW - Primary Health Care/methods KW - Psychiatric Status Rating Scales KW - Psychometrics KW - Questionnaires KW - Reproducibility of Results KW - Sensitivity and Specificity KW - Severity of Illness Index KW - Sex Factors KW - Somatoform Disorders/diagnosis/epidemiology/psychology KW - Translating AU - C. Fabiao AU - M. C. Silva AU - A. Barbosa AU - M. Fleming AU - W. Rief A1 - AB - BACKGROUND: To investigate the validity and stability of a Portuguese version for the Screening for Somatoform Symptoms-2 (SOMS-2) in primary care (PC) settings. METHODS: An adapted version of the SOMS-2 was filled in by persons attending a PC unit. All medically unexplained symptoms were further ascertained in a clinical interview and by contacting the patient's physicians and examining medical records, attaining a final clinical symptom evaluation (FCSE). An interview yielded the diagnosis of Clinical Somatization (CS) and the diagnosis of current depressive and anxiety disorders. RESULTS: From the eligible subjects, 167 agreed to participate and 34.1% of them were diagnosed with somatization. The correlation between the number of self-reported and FCSE symptoms was 0.63. After excluding symptoms with low frequency, low discriminative power and not correlated with the overall scale, 29 were retained in the final version. A cut-off of 4 symptoms gave a sensitivity of 86.0% and a specificity of 95.5% on the FCSE and 56.1% and 93.6% at self-report. Stability in the number of symptoms after 6 months was good (k = 0.57). CONCLUSIONS: The 29 symptoms version of the SOMS-2 with a cut-off of 4 showed a high specificity and sensitivity, being reliable as a referral tool for further specialized diagnosis. BT - BMC psychiatry C5 - Medically Unexplained Symptoms CY - England DO - 10.1186/1471-244X-10-34 JF - BMC psychiatry N2 - BACKGROUND: To investigate the validity and stability of a Portuguese version for the Screening for Somatoform Symptoms-2 (SOMS-2) in primary care (PC) settings. METHODS: An adapted version of the SOMS-2 was filled in by persons attending a PC unit. All medically unexplained symptoms were further ascertained in a clinical interview and by contacting the patient's physicians and examining medical records, attaining a final clinical symptom evaluation (FCSE). An interview yielded the diagnosis of Clinical Somatization (CS) and the diagnosis of current depressive and anxiety disorders. RESULTS: From the eligible subjects, 167 agreed to participate and 34.1% of them were diagnosed with somatization. The correlation between the number of self-reported and FCSE symptoms was 0.63. After excluding symptoms with low frequency, low discriminative power and not correlated with the overall scale, 29 were retained in the final version. A cut-off of 4 symptoms gave a sensitivity of 86.0% and a specificity of 95.5% on the FCSE and 56.1% and 93.6% at self-report. Stability in the number of symptoms after 6 months was good (k = 0.57). CONCLUSIONS: The 29 symptoms version of the SOMS-2 with a cut-off of 4 showed a high specificity and sensitivity, being reliable as a referral tool for further specialized diagnosis. PP - England PY - 2010 SN - 1471-244X; 1471-244X SP - 34 T1 - Assessing medically unexplained symptoms: evaluation of a shortened version of the SOMS for use in primary care T2 - BMC psychiatry TI - Assessing medically unexplained symptoms: evaluation of a shortened version of the SOMS for use in primary care U1 - Medically Unexplained Symptoms U2 - 20478053 U3 - 10.1186/1471-244X-10-34 VL - 10 VO - 1471-244X; 1471-244X Y1 - 2010 ER -