Reliability of trachoma clinical grading--assessing grading of marginal cases.

• Main Authors: Salman A Rahman (Author), Sun N Yu (Author), Abdou Amza (Author), Sintayehu Gebreselassie (Author), Boubacar Kadri (Author), Nassirou Baido (Author), Nicole E Stoller (Author), Joseph P Sheehan (Author), Travis C Porco (Author), Bruce D Gaynor (Author), Jeremy D Keenan (Author), Thomas M Lietman (Author)
• Format: Book
• Published: Public Library of Science (PLoS), 2014-05-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Clinical examination of trachoma is used to justify intervention in trachoma-endemic regions. Currently, field graders are certified by determining their concordance with experienced graders using the kappa statistic. Unfortunately, trachoma grading can be highly variable and there are cases where e...