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Table 4 Rank ordering of instrument performance by various discriminative tests for the known group comparisons

From: Parsimonious and efficient assessment of health-related quality of life in osteoarthritis research: validation of the Assessment of Quality of Life (AQoL) instrument

   Effect Size RE ROC (AUC)
Self Rated Health 1 AQoL (-1.00) AQoL (1.00) AQoL (0.76)
  2 WOMAC (0.92) WOMAC (0.84) WOMAC (0.75)
  3 PCS (-0.84) PCS (0.71) PCS (0.67)
  4 VAS pain (0.79) VAS pain (0.63) VAS pain (0.65)
OWL v Community 1 WOMAC (-0.79) WOMAC (1.57) WOMAC (0.70)
group 2 VAS pain (0.74) VAS pain (1.03) VAS pain (0.70)
  3 AQoL (0.66) AQoL (1.00) AQoL (0.67)
  4 PCS (0.44) PCS (0.46) PCS (0.64)
  5 MCS (0.24) MCS (0.13) MCS (0.56)
  1. Note: Comparison groups were Self-rated good vs. poor health and Orthopedic waiting list (OWL) vs. Community based group.