Comparison of different analytic algorithms for interpretation of the Swedish interactive threshold algorithm strategy.
OBJECTIVE
To compare 4 analytic algorithms for interpretation of the Swedish Interactive Threshold Algorithm.


BACKGROUND
Analytic algorithms were initially developed for interpretation of standard automated perimetry (using a full threshold strategy). The Swedish interactive threshold algorithm is a novel strategy that was developed to shorten test duration.


METHODS
One hundred forty-three printouts of normal and glaucomatous patients were analyzed using Caprioli's (strict, moderate and liberal) criteria and Anderson's modified criteria for perimetric defect. Areas under the receiver operator characteristics (ROC) curves, sensitivity, and specificity for each criteria were calculated.


RESULTS
Caprioli's strict and Anderson's modified criteria presented similar sensitivity (94.5% and 92.3%, respectively) and specificity (63.5% and 61.5%, respectively). Caprioli's liberal criteria were more sensitive (98.9%) and less specific (42.5%) than the other three criteria.


CONCLUSIONS
Both Caprioli's and Anderson's modified criteria can be used for interpretation of the Swedish interactive threshold algorithm.
Department of Ophthalmology, Santa Casa de São Paulo, School of Medical Sciences, São Paulo, SP, Brazil.
Gustavo S
GS
Takahashi
Niro
N
Kasahara
D000465:Algorithms; D005260:Female; D005901:Glaucoma / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D011237:Predictive Value of Tests; D012372:ROC Curve; D012680:Sensitivity and Specificity; D012684:Sensory Thresholds / Q000502:physiology; D012720:Severity of Illness Index; D058609:Visual Field Tests / Q000379:methods*