Table 1 Unadjusted analysis assessing preoperative variables associated with a preoperative health status of worse than death in patients awaiting a total knee arthroplasty
Variable | Worse than Death | Difference/Odds Ratio (95%CI) | P-value | |||
|---|---|---|---|---|---|---|
No (n=5086) | Yes (n=771) | |||||
Gender (n, % of group) | Male | 2003 (39.4) | 201 (26.1) | 1.84 (1.55 to 2.19) | <0.001* | |
Female | 3083 (60.6) | 570 (73.9) | ||||
Age (years: mean, SD) | 71.3 (8.9) | 70.0 (9.9) | 1.2 (0.6 to 1.9) | <0.001** | ||
BMI (n, % of group) | Underweight | 19 (0.4) | 5 (0.6) | Â | <0.001* | |
Normal | 632 (12.4) | 111 (14.4) | Â | Â | ||
Overweight | 1876 (36.9) | 232 (30.1) | Â | Â | ||
Obese I | 1665 (32.7) | 228 (29.6) | Â | Â | ||
Obese II | 604 (11.9) | 122 (15.8) | Â | Â | ||
Obese III | 290 (5.7) | 73 (9.5) | Â | Â | ||
Indices of multiple deprivation decile (n, % of group) | 1 (most) | 25 (0.5) | 5 (0.6) | Â | <0.001* | |
2 | 216 (4.2) | 59 (7.7) | Â | Â | ||
3 | 312 (6.1) | 71 (9.2) | Â | Â | ||
4 | 485 (9.5) | 92 (11.9) | Â | Â | ||
5 | 401 (7.9) | 80 (10.4) | Â | Â | ||
6 | 586 (11.5) | 91 (11.8) | Â | Â | ||
7 | 471 (9.3) | 76 (9.9) | Â | Â | ||
8 | 666 (13.1) | 100 (13) | Â | Â | ||
9 | 952 (18.7) | 100 (13) | Â | Â | ||
10 (least) | 972 (19.1) | 97 (12.6) | Â | Â | ||
Preoperative | OKS | 22.3 (7.3) | 11.2 (5.2) | 11.0 (10.5 to 11.6) | <0.001** | |
(mean, SD) | EQ-5D | 0.511 (0.255) | -0.075 (0.093) | 0.586 (0.568 to 0.605) | <0.001** | |
| Â | EQ-VAS | 70.8 (17.4) | 55.2 (21.8) | 15.6 (14.2 to 17.0) | <0.001** | |