TABLE 2

Quarterly Details of Metrics of Interest

Year and QuarterApproachedEligibleaScreenedMissedProtocol ViolationsFalse-PositivesParental Decline
n%n%n%n%
2008
 1320316300165.110.330.941.3
 271770865157b8.1b00.020.391.3
 367166261250b7.6b00.0101.591.3
 465665358964b9.8b00.050.830.5
2009
 164263458844b6.9b20.381.381.2
 2702688648385.520.315b2.2b142.0
 3754742702405.400.091.2121.6
 4645633620132.100.0101.6121.9
2010
 1637630615152.400.081.371.1
 262761360491.500.071.1142.2
 3704685667172.510.1111.6192.7
 4678667645223.300.0111.6111.6
2011
 1605591569223.700.081.4142.3
 2703688672162.300.0121.7152.1
 3656642620203.120.318b2.8b142.1
 4567555540152.700.071.3122.1
2012
 1639629605243.800.0121.9101.6
 2953916867414.510b1.1b40.437b3.9b
 3127812371182514.140.310.141b3.2b
 4118111521107413.640.300.0292.5
2013
 1107310521026262.500.000.0212.0
 2117711581144121.020.240.3191.6
 3119111901177110.920.240.310.1
 411931191118450.420.230.320.2
2014
 139839839520.510.300.000.0
Overall average (control chart center line value), %3.50.180.941.7
Linear regression results estimates−0.002 (P < .001)∼0 (P = .26)−0.0005 (P = .03)∼0 (P = .99)
  • a Eligible patients include asymptotic, wellborn neonates whose parents did not decline screening.

  • b Metric for the quarter was beyond the statistical process control upper confidence limit.