The accuracy of multiple regression models for predicting the individual risk of recurrent lateral patellar dislocation

Table 5 Diagnostic validity of the PIP for RLPD.

		Real situation
		Positive	Negative
Patellar instability probability(PIP) calculator	Positive	83	121
Patellar instability probability(PIP) calculator	Negative	88	50

The sensitivity, specificity, positive predictive value, and negative predictive value of the test was 48.5%, 29.2%, 68%, and 36.2%, respectively.

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