title: [Linguistic adaptation into Spanish and psychometric validation of the ID-Pain questionnaire for the screening of neuropathic pain].
abstract: OBJECTIVE
  To achieve a linguistic adaptation and psychometric validation into Spanish of the ID-Pain questionnaire for the screening of differential diagnosis of pain with a neuropathic component.
  
  
  METHODS
  Cross-sectional validation study carried out in 2 phases (cultural adaptation into Spanish language and validation study to test psychometric properties of the scale) in men and women > 18 years, with neuropathic (NP) and nociceptive (NNP) chronic pain for more than 6 months. Feasibility and reliability were explored. Criterion and convergent validity were studied by means of ID-Pain association with reference diagnosis and LANNS (Leeds Assessment of Neuropathic Symptoms and Signs) scale scores. Factor and ROC curves analysis, agreement with reference diagnosis and sensitivity and specificity values were assessed.
  
  
  RESULTS
  A total of 283 subjects -64.4% women; mean age (standard deviation): 59.1 (14.9) years-, 145 (51.2%) with NP and 138 (48.8%) with NNP were included in the study. Administration time was 4.2 (3.0) min. Only 15% of participants required help for test completion. Factor analysis indicated a unifactorial solution accounting for 35.5% of the variance. The instrument was time-stable (test-retest r-Pearson = 0.98; p < 0.0005). Mean score differentiated NP from NNP patients; 3.5 (1.2) vs. 1.2 (1.4) (p < 0.0005). Optimum cut-off value was > or = 3 points, showing an area under the curve = 0.89; p < 0.0005, sensitivity value of 0.81, specificity of 0.84 and kappa coefficient of agreement with reference clinical diagnosis of 0.65. The scale also showed good concurrent validity with LANSS classification of subjects (kappa = 0.61; p < 0.0005).
  
  
  CONCLUSIONS
  The Spanish version of the ID-Pain questionnaire is feasible, reliable and appropriated as a self-administered screening tool for pain with a neuropathic component.
authors.affiliation: Unidad de Dolor y Cuidados Paliativos. Hospital Universitario Virgen de las Nieves. Granada. España. rafaelgalvez@hotmail.com
authors.forename: Rafael
authors.initials: R
authors.lastname: Gálvez
authors.forename: Antonio
authors.initials: A
authors.lastname: Pardo
authors.forename: José M
authors.initials: JM
authors.lastname: Cerón
authors.forename: Fernando
authors.initials: F
authors.lastname: Villasante
authors.forename: José L
authors.initials: JL
authors.lastname: Aranguren
authors.forename: María T
authors.initials: MT
authors.lastname: Saldaña
authors.forename: Ana
authors.initials: A
authors.lastname: Navarro
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Ruiz
authors.forename: Silvia
authors.initials: S
authors.lastname: Díaz
authors.forename: Javier
authors.initials: J
authors.lastname: Rejas
mesh_terms: D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D009437:Neuralgia / Q000175:diagnosis*; D010147:Pain Measurement; D011594:Psychometrics; D013030:Spain; D011795:Surveys and Questionnaires