title: [Validation of the Spanish version of the Screening for Somatoform Symptoms-2 scale for use in Primary Care].
abstract: OBJECTIVE
  To study the diagnostic validity and to provide the sensitivity, specificity, positive predictive value and negative predictive value of the Spanish version of the Screening for Somatoform Symptoms-2 (SOMS-2) scale in a PC population sample.
  
  
  METHODS
  Validation study.
  
  
  METHODS
  PC centres in Aragon and Balearic Islands, Spain.
  
  
  METHODS
  A sample of 109 patients from a clinical trial with somatoform disorders and 56 patients without somatoform disorder were included for the scale validation.
  
  
  METHODS
  Sensitivity, specificity, positive predictive value, negative predictive value and Cronbach's α coefficient.
  
  
  RESULTS
  Of the total sample of 165 subjects, 75% were women and 60% had a diagnosis of somatization disorder and/or anxiety or depressive disorder. The 53-item version of the SOMS-2 with a cut-off point of 4 showed a sensitivity of 97%, a specificity of 68%, a positive predictive value of 85%, a negative predictive value of 92%, and high internal consistency (Cronbach α=0.926).
  
  
  CONCLUSIONS
  The Spanish version of the SOMS-2 seems to be a reliable screening tool, easy to complete and useful for the assessment of somatoform disorders in PC settings. The results for specificity, sensitivity, and internal consistency are similar to previous studies in other European languages.
authors.affiliation: Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, Palma de Mallorca, España; Red de Investigación en Actividades Preventivas y Promoción de la Salud, Instituto de Salud Carlos III, Madrid, España. Electronic address: mgili@uib.es.
authors.forename: Margalida
authors.initials: M
authors.lastname: Gili
authors.affiliation: Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, Palma de Mallorca, España; Red de Investigación en Actividades Preventivas y Promoción de la Salud, Instituto de Salud Carlos III, Madrid, España.
authors.forename: Natalia
authors.initials: N
authors.lastname: Bauzá
authors.affiliation: Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, Palma de Mallorca, España; Red de Investigación en Actividades Preventivas y Promoción de la Salud, Instituto de Salud Carlos III, Madrid, España.
authors.forename: Margalida
authors.initials: M
authors.lastname: Vives
authors.affiliation: Universidad de San Jorge, Zaragoza, España.
authors.forename: Sergio
authors.initials: S
authors.lastname: Moreno
authors.affiliation: Red de Investigación en Actividades Preventivas y Promoción de la Salud, Instituto de Salud Carlos III, Madrid, España; Departamento de Medicina Familiar, Centro de Salud Arrabal, Universidad de Zaragoza, Instituto Aragonés de Ciencias de la Salud (IACS), Zaragoza, España.
authors.forename: Rosa
authors.initials: R
authors.lastname: Magallón
authors.affiliation: Institut Universitari d'Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, Palma de Mallorca, España; Red de Investigación en Actividades Preventivas y Promoción de la Salud, Instituto de Salud Carlos III, Madrid, España.
authors.forename: Miquel
authors.initials: M
authors.lastname: Roca
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011320:Primary Health Care; D011569:Psychiatric Status Rating Scales; D012680:Sensitivity and Specificity; D013001:Somatoform Disorders / Q000175:diagnosis*
keywords: Atención Primaria; Especificidad; Primary Health Care; Sensibilidad; Sensitivity; Somatization disorder; Specificity; Trastorno de somatización; Validez; Validity