Table VIII.

Statistical measures for conversion to total hip arthroplasty

Outcome measure	Metric	Specificity (CI)	Sensitivity (CI)	Accuracy (CI)	LR+ (CI)	LR− (CI)
mHHS	MCID	0.76 (0.72–0.80)	0.50 (0.24–0.76)	0.75 (0.71–0.79)	2.09 (1.20–3.64)	0.66 (0.39–1.11)
	SCB	0.48 (0.43–0.53)	0.79 (0.57–1.00)	0.49 (0.44–0.54)	1.51 (1.13–2.02)	0.45 (0.16–1.23)
	PASS	0.74 (0.69–0.79)	0.71 (0.48–0.95)	0.74 (0.69–0.78)	2.76 (1.89–4.01)	0.39 (0.17–0.88)
iHOT-12	MCID	0.78 (0.73–0.82)	0.71 (0.48–0.95)	0.77 (0.73–0.82)	3.21 (2.19–4.71)	0.37 (0.16–0.84)
	SCB	0.61 (0.56–0.66)	0.86 (0.67–1.00)	0.62 (0.57–0.67)	2.19 (1.70–2.81)	0.23 (0.06–0.85)
	PASS	0.65 (0.60–0.70)	0.86 (0.67–1.00)	0.66 (0.61–0.71)	2.47 (1.91–3.20)	0.22 (0.06–0.79)

Highest values in each category are marked in bold.

CI: confidence interval; LR+: positive likelihood ratio; LR−: negative likelihood ratio; mHHS: modified Harris Hip Score; iHOT-12: 12-item international Hip Outcome Tool; MCID: minimal clinical important difference; SCB: substantial clinical benefit; PASS: patient acceptable symptom state.