Table 1

 The accuracy of pulse oximetry for diagnosing congenital heart disease in asymptomatic newborns for the commonest threshold of oxygen saturation <95%

TestNo. of patientsSensitivity, %(true positive rate)(95% CI)Specificity, %(95% CI)False positive rate (%) (95% CI)
*Functional oxygen saturation; †fractional oxygen saturation.
Saturation* ⩽95% foot11 28160.0 (14.7 to 94.7)100 (100 to 100)0
Saturation* ⩽95% foot or hand211466.7 (9.4 to 99.2)99.9 (99.7 to 100)0.1 (0 to 0.3)
Saturation* ⩽95% foot326296.8 (73.6 to 100)99.7 (99.5 to 99.9)0.3 (0.1 to 0.5)
Saturation† <95% foot562625.0 (12.7 to 41.2)99.6 (99.4 to 99.7)0.4 (0.3 to 0.6)
Saturation* ⩽95% foot529266.7 (9.4 to 99.2)100 (99.9 to 100)0 (0 to 0.1)
Saturation† <95% hand and foot521130.8 (9.1 to 61.4)100 (99.9 to 100)0 (0 to 0.1)
Saturation* <95% foot273375.0 (57.8 to 87.9)87.9 (86.6 to 89.1)12.1 (10.9 to 13.4)
Saturation* <95% foot26689.4 (79.4 to 95.6)99.0 (96.4 to 99.9)1.0 (0.1 to 3.6)
Summary estimate35 78563.4 (38.7 to 82.5)99.8 (99 to 100)0.2 (0 to 1)