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Table 6 Utility of chiropractors’ prediction of patients not improving as categorised by MCIC in pain NRS* scores split by complaint

From: Prognostic accuracy of clinicians for back, neck and shoulder patients in routine practice

  Back Neck Shoulder
Week 4    
N 173 45 37
OR (95% CI) 1.3 (0.5 to 3.3) 1.4 (0.2 to 8.9) 5.5 (0.8 to 36.0)
Nagelkerke R2 0.00 0.01 0.15
+ve Likelihood ratio 0.0 0.0 0.0
−ve Likelihood ratio ** ** **
AUC 0.5 (0.4 to 0.6) 0.5 (0.3 to 0.8) 0.7 (0.5 to 0.9)
Week 12    
N 124   
OR (95% CI) 3.1 (1.1 to 9.3) § §
Nagelkerke R2 0.05 § §
+ve Likelihood ratio 0.0 § §
−ve Likelihood ratio ** § §
AUC 0.6 (0.4 to 0.7) § §
  1. *(≤ 30%), nc=not calculated as no MCIC, **unable to calculate as divided by 0, § unable to calculate due to less than 5 in one cell, AUC=Area under curve.