Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/44761
Full metadata record
DC FieldValueLanguage
dc.contributor.authorPaczka Z, J.A.
dc.contributor.authorGonzalez, J.
dc.contributor.authorGonzalez Flores, I.
dc.contributor.authorOchoa-Tabares, J.C.
dc.contributor.authorRuiz-Orozco, H.
dc.contributor.authorDe Los Rios-Obregon, D.
dc.date.accessioned2015-09-15T19:00:34Z-
dc.date.available2015-09-15T19:00:34Z-
dc.date.issued2002
dc.identifier.urihttp://hdl.handle.net/20.500.12104/44761-
dc.identifier.urihttp://www.scopus.com/inward/record.url?eid=2-s2.0-0036754410&partnerID=40&md5=f9d2a8d025e3f21badb10bab46b994c1
dc.description.abstractPurpose: To determine the strength of agreement among examiners assessing optic disk stereo-photos, for establishing c/d ratio and presence of glaucoma. Methods: Eighty optic disk photos from 80 patients were assessed in two different sessions by three expert graders (E1,E2 y E3) and three inexperienced ones (NE1, NE2 y NE3); each examiner determined vertical c/d ratio, as well as the presence of glaucoma. Student's t test, ANOVA, bi-variate simple regressions, kappa statistics and coefficient of variation were used. Sensitivity and specificity of assessing stereo-photos were estimated for each examiner. Results: Mean c/d ratio values ranged from 0.48 to 0.62 (first session), and from 0.55 to 0.70 (second session). The weakest agreement between examiners for establishing the presence of glaucoma occurred between NE3 y E1 in the first session (k = 0.31); in contrast, the strongest agreement was observed between NE2 and NE3 during the second session (k = 0.77). Correlation c/d ratio values (r) ranged from 0.6 to 0.89. The sensitivity values for different examiners were reported between 79% and 87%. Specificity values were smaller than the sensitivity values for each examiner (range, 40-80%). A c/d ratio of 0.71 presented optimal sensitivity/specificity values (80% / 79%). Conclusions: Subjective assessment of optic disk stereo-photos has a wide inter- and intra-observer variability that seems to be influenced by examiner level of experience.
dc.relation.isreferencedbyScopus
dc.titleStrength of agreement among examiners assessing optic disk stereophotos [Concordancia inter e intra-observador en la evaluación clínica de los discos ópticos mediante estereofotografías]
dc.typeArticle
dc.relation.ispartofjournalRevista Mexicana de Oftalmologia
dc.relation.ispartofvolume76
dc.relation.ispartofissue5
dc.relation.ispartofpage191
dc.relation.ispartofpage196
dc.subject.keywordAgreement; Cup/disc ratio; Glaucoma; Glaucoma suspect; Optic disk; Stereo-photographs; Variability
dc.contributor.affiliationPaczka Z, J.A., Inst. Oftalmologia Ciencias Visuales, Ctro. Univ. de Ciencias de la Salud, Universidad de Guadalajara, Apdo. Postal 22-12, Guadalajara, Jalisco 44291, Mexico; González, J., Inst. Oftalmologia Ciencias Visuales, Ctro. Univ. de Ciencias de la Salud, Universidad de Guadalajara, Apdo. Postal 22-12, Guadalajara, Jalisco 44291, Mexico; González Flores, I., Inst. Oftalmologia Ciencias Visuales, Ctro. Univ. de Ciencias de la Salud, Universidad de Guadalajara, Apdo. Postal 22-12, Guadalajara, Jalisco 44291, Mexico; Ochoa-Tabares, J.C., Inst. Oftalmologia Ciencias Visuales, Ctro. Univ. de Ciencias de la Salud, Universidad de Guadalajara, Apdo. Postal 22-12, Guadalajara, Jalisco 44291, Mexico; Ruiz-Orozco, H., Inst. Oftalmologia Ciencias Visuales, Ctro. Univ. de Ciencias de la Salud, Universidad de Guadalajara, Apdo. Postal 22-12, Guadalajara, Jalisco 44291, Mexico; De Los Ríos-Obregón, D., Inst. Oftalmologia Ciencias Visuales, Ctro. Univ. de Ciencias de la Salud, Universidad de Guadalajara, Apdo. Postal 22-12, Guadalajara, Jalisco 44291, Mexico
Appears in Collections:Producción científica UdeG

Files in This Item:
There are no files associated with this item.


Items in RIUdeG are protected by copyright, with all rights reserved, unless otherwise indicated.