Table II.

Multivariate logistic regression analysis of predictors of ‘worse than death’ (WTD) status prior to total hip arthroplasty (THA) and total knee arthroplasty (TKA)

Predictors in the model	B	OR (95% CI)	p-value
Hips (R2 = 0.411)
Body mass index	-0.01	0.99 (0.96 to 1.0)	0.521
Sex, female	0.10	1.1 (0.74 to 1.63)	0.627
Scottish Index of Multiple Deprivation	0.08	1.1 (0.95 to 1.24)	0.038
Joint-specific PROM
Preoperative Oxford Hip Score	0.20	1.21 (1.18 to 1.26)	< 0.001*
Medical comorbidities
Stroke with hemiplegia	0.35	1.4 (0.50 to 4.0	0.515
Dementia	1.58	4.9 (0.81 to 29.3)	0.084
Chronic obstructive pulmonary disease	1.49	4.4 (1.9 to 10.3)	0.001*
CTD/inflammatory arthropathy	0.56	1.7 (0.96 to 3.2)	0.067
Liver disease	0.57	1.76 (0.49 to 6.4)	0.400
Total number of medical comorbidities	0.11	1.11 (0.84 to 1.48)	0.458
Musculoskeletal comorbidities
Back pain	0.40	1.5 (0.99 to 2.2)	0.054
Pain in other joints	0.30	1.4 (0.80 to 2.3)	0.265
Bilateral THAs	-0.54	0.58 (0.29 to 1.16)	0.126
Knees (R2 = 0.382)
Body mass index	-0.04	0.99 (0.96 to 1.03)	0.790
Sex, female	0.21	1.24 (0.82 to 1.87)	0.309
Scottish Index of Multiple Deprivation	0.05	1.05 (0.91 to 1.22)	0.505
Year of surgery	-0.16	0.85 0.72 to 1.02)	0.081
Joint-specific PROM
Preoperative Oxford Knee Score	0.23	1.26 (1.22 to 1.31)	< 0.001*
Medical comorbidities
Peripheral arterial disease	1.57	4.79 (1.57 to 14.58)	0.006*
CTD/inflammatory arthropathy	0.72	2.05 (1.24 to 3.40)	0.005*
Total number of medical comorbidities	0.03	1.03 (0.84 to 1.26)	0.774
Musculoskeletal comorbidities
Back pain	0.04	1.04 (0.69 to 1.55)	0.856
Pain in other joints	0.35	1.41 (0.85 to 2.35)	0.186

^*Statistically significant

OR, odds ratio; CI, confidence interval; PROM, patient-reported outcome measure; CTD, connective tissue disorder