Comparison of the simple grading of trachoma with the grading used in a more detailed systema

Simplified systembDetailed systemImplication
TFF2 or F3Presence of inflammatory trachoma
TIP3Severe intensity of inflammation
TSC1, C2, or C3Presence of cicatricial trachoma
TTT/E2 or T/E3Potentially disabling lesion
COCC2 or CC3Visually disabling lesion
  • a The simplified system (226) was compared with the more detailed system (53).

  • b See Table 2, footnote a.