Sensitivity and Specificity of the Spanish version of the ScreeLing Test in aphasic patients at the acute phase: A pilot study

Authors

  • Valentina Mora-Castelletto Departamento Ciencias de la Salud, Pontificia Universidad Católica de Chile http://orcid.org/0000-0003-2415-1551
  • Camila Hermosilla-Gotschlich Departamento Ciencias de la Salud, Pontificia Universidad Católica de Chile http://orcid.org/0000-0002-8264-8382
  • Constanza Márquez-Espinoza Departamento Ciencias de la Salud, Pontificia Universidad Católica de Chile http://orcid.org/0000-0002-4059-6094
  • Sofía Puelma-Pistelli Departamento Ciencias de la Salud, Pontificia Universidad Católica de Chile http://orcid.org/0000-0001-8736-084X
  • Paulina Valdés-Flatow Departamento Ciencias de la Salud, Pontificia Universidad Católica de Chile http://orcid.org/0000-0002-4648-8932
  • Josette Sáez-Martínez Departamento Ciencias de la Salud, Pontificia Universidad Católica de Chile and Servicio de Neurología, Complejo Asistencial Doctor Sótero del Rio, Servicio de Salud Metropolitano Sur Oriente
  • Bernardita Letelier-Vera Departamento Ciencias de la Salud, Pontificia Universidad Católica de Chile and Servicio de Neurología, Complejo Asistencial Doctor Sótero del Rio, Servicio de Salud Metropolitano Sur Oriente
  • Eduardo Fuentes-López Departamento Ciencias de la Salud, Pontificia Universidad Católica http://orcid.org/0000-0002-0141-0226
  • Carolina Méndez-Orellana Departamento Ciencias de la Salud, Pontificia Universidad Católica de Chile http://orcid.org/0000-0001-5217-9725

Abstract

In Chile, aphasia is present in 20% to 30% of stroke patients. Currently, speech and language therapists do not have a standardized test to characterize aphasic patients' linguistics disorders at the acute phase. The aim of this study iso analyze the sensibility and specificity of the Spanish version of the ScreeLing test in aphasic patient post-stroke at the acute stage. To do so, in a transversal study design, acute aphasic patients (< 6 weeks post-stroke) and healthy adults were evaluated with the Spanish version of the ScreeLing test. Additionally, language comprehension and spontaneous speech were assessed with the shortened version of the Token Test and the Aphasia Severity Rating Scale, respectively. We calculated the Area Under ROC Curve (AUC) to choose the cut-off that provided the best balance between sensibility and specificity. We included 13 aphasic patients and 56 healthy adults. The best balance between sensibility and specificity was found to be with 67 points, with a sensibility of 94,6% and specificity of 100%. The AUC ROC was 0,99 (IC 95%: 0,97-1,00). For the subtest measuring syntax and phonology, the cut-off score was 21 points, and for the semantic subtest, 22 points. In conclusion, the Spanish version of the ScreeLing test, similar to its original Dutch version, demonstrated high specificity and sensibility to detect linguistic deficits in acute aphasic patients post-stroke. Future efforts aim to increase the sample size of patients considering different language severity profiles.

Keywords:

Aphasia, Stroke, Assessment, ScreeLing