Sensitivity and Positive Predictive Value of KSQ according to CTS severity

KSQ ≥5|<5

KSQ ≥5|<5

KSQ ≥5|<5

Mild CTS

Moderate CTS

Severe CTS

Positive

8|2

Positive

28|3

Positive

36|0

Negative

64|3

Negative

44|2

Negative

36|5

Sensitivity:

11.9%

Sensitivity:

38.8%

Sensitivity:

50.0%

Positive Predictive Value:

80.0%

Positive Predictive Value:

90.3%

Positive Predictive Value:

100.0%