Page 40 - ESHRE2019

Statistical analyses
Reference standard
Pos
Neg
Positive Predictive value PPV=25/35 (71%)
Negative Predictive value NPV=60/65 (92%)
25
10
5
60
Pos test Neg
Cross- sectional studies
Studied
Sensitivity Specificity S=25/30 Sp=60/70 (83%) (86%)
Case-control and cross sectional studies
Reference standard Pos Neg
Neg
Positive Predictive value PPV=25/35 (71%) 25/125 (20%)
Negative Predictive value NPV=60/65 (92%) 600/605 (99%)
Statistical analyses
25
100
5
600
Studied Pos
test
Sensitivity Specificity S=25/30 Sp=600/700
(83%) (86%)
38
35