From: Can corneal pannus with trachomatous inflammation – follicular be used in combination as an improved specific clinical sign for current ocular Chlamydia trachomatis infection?
TF
New pannus
TF & new pannus
Sensitivity
90.4
55.8
51.9
Specificity
69.7
85.3
91.7
PPV
58.8
64.4
75.0
NPV
93.8
80.2
80.0