[Table/Fig-5]:
Sensitivity and specificity of various individual factors of ACR criteria for diagnosing osteoarthritis knee (right joint*)
| Sensitivity (95% C.I.) | Specificity (95% C.I.) | |
| Pain | 1.00 (0.98 - 1.00) | 0.78 (0.73 - 0.82) |
| Crepitus | 1.00 (0.98 - 1.00) | 0.94 (0.90 - 0.96) |
| Tenderness | 0.96 (0.92 - 0.98) | 0.98 (0.96 - 0.99) |
| Morning stiffness | 0.52 (0.45 - 0.59) | 0.99 (0.98 - 1.00) |
| Bone warmth | 0.32 (0.25 - 0.38) | 1.00 (0.98 - 1.00) |
| Bony overgrowth | 0.16 (0.11 - 0.22) | 1.00 (0.99 - 1.00) |
*Results presented for one joint (right joint) since results of the both the joints were almost similar