Table 4

Survivors of renal anomalies (excludes two cases with no antenatal screening examination)

Anomaly suspected
YesNoTotal
Birth date before 1 January 1995
Anomaly confirmed
    Yes 581151732
    No 8770877
    Total14581511609
Sensitivity 0.4
Positive predictive value 0.79
Birth date on or after 1 January 1995
Anomaly confirmed
    Yes 39541436
    No 2500250
    Total 64541686
Sensitivity 0.6
Positive predictive value 0.91
Odds ratio correctly diagnosed 1.56
95% CI 1.36 to 1.86