Table 4

Newly trained allied health professional

Items (n)True positivesFalse positivesTrue negativesFalse negativesSensitivitySpecificityPositive predictive valueNegative predictive valueAccuracy
(%)
5*36636160.690.860.860.6976.6
4*36735160.690.830.840.6975.5
3*40735120.770.830.850.7479.8
2*42834100.810.810.840.7780.9
1*48142840.920.670.770.8880.9
  • 5* includes all 5 Perrin technique physical signs; 4* includes postural/mechanical disturbances of the thoracic spine, tender Perrin’s point, tender coeliac plexus and dampened cranial flow; 3* includes postural/mechanical disturbances of the thoracic spine, tender Perrin’s point and tender coeliac plexus; 2* includes tender coeliac plexus and postural/mechanical disturbance of the thoracic spine; and 1* includes tender coeliac plexus.