Skip to main content

Table 3 Final seven variable model number needed to treat analyses*

From: A predictive model for respiratory syncytial virus (RSV) hospitalisation of premature infants born at 33–35 weeks of gestational age, based on data from the Spanish FLIP study

ROC AUC plus confidence limits

True Positive Fraction

True positives treated

False Positive Fraction

False positives treated

NNT

NNT

(80% efficacy)

0.791

(mid point)

0.75

75

0.33

627

9.4

11.7

0.751

(lower limit)

0.75

75

0.39

741

10.9

13.6

0.830

(upper limit)

0.75

75

0.26

494

7.6

9.5

  1. *Number needed to treat (NNT) to prevent hospitalisation of 75% of at risk infants, assuming a 5% hospitalisation rate and 80% treatment efficacy (n = 2,000)