| Adjusted odds ratio (95% confidence interval) | |||
---|---|---|---|---|
 | Hip replacement | Knee replacement | Hernia repair | VV surgery |
Socio-demographic characteristics | ||||
Sex | ||||
Female | 1.00 | 1.00 | 1.00 | 1.00 |
Male | 1.12 (1.05-1.19) | 1.15 (1.09-1.22) | 1.03 (0.95-1.11) | 1.35 (1.25-1.46) |
Age category (years) | ||||
Under 55 | 3.06 (2.78-3.37) | 3.01 (2.72-3.32) | 6.05 (5.49-6.67) | 4.08 (3.29-5.06) |
55-64 | 1.48 (1.35-1.61) | 1.50 (1.38-1.62) | 1.81 (1.63-2.00) | 1.50 (1.21-1.88) |
65-74 | 0.97 (0.90-1.05) | 1.05 (0.98-1.13) | 1.05 (0.95-1.17) | 1.13 (0.89-1.42) |
75 and over | 1.00 | 1.00 | 1.00 | 1.00 |
Ethnicity | ||||
White | 1.00 | 1.00 | 1.00 | 1.00 |
Non-white | 1.58 (1.32-1.88) | 2.08 (1.89-2.31) | 1.24 (1.11-1.38) | 1.25 (1.08-1.47) |
IMD quintile | ||||
Most deprived | 1.55 (1.40-1.72) | 1.47 (1.34-1.62) | 1.86 (1.71-2.03) | 1.49 (1.31-1.69) |
2nd | 1.34 (1.21-1.47) | 1.29 (1.17-1.41) | 1.60 (1.47-1.73) | 1.21 (1.07-1.38) |
3 rd | 1.12 (1.02-1.23) | 1.18 (1.07-1.29) | 1.25 (1.15-1.36) | 1.13 (1.00-1.28) |
4th | 1.04 (0.95-1.14) | 1.06 (0.97-1.17) | 1.13 (1.04-1.23) | 0.98 (0.87-1.12) |
Least deprived | 1.00 | 1.00 | 1.00 | 1.00 |
Living arrangements | ||||
Not living alone | 1.00 | 1.00 | 1.00 | 1.00 |
Living alone | 1.27 (1.18-1.36) | 1.21 (1.13-1.29) | 1.16 (1.08-1.25) | 1.11 (0.99-1.23) |
Assisted in completing questionnaire | ||||
Not assisted | 1.00 | 1.00 | 1.00 | 1.00 |
Assisted | 1.49 (1.39-1.60) | 1.67 (1.56-1.79) | 1.53 (1.41-1.66) | 1.26 (1.10-1.46) |
Clinical characteristics Previous surgery | ||||
No | 1.00 | 1.00 | 1.00 | 1.00 |
Yes | 1.42 (1.30-1.55) | 1.36 (1.25-1.49) | 1.14 (1.05-1.23) | 1.05 (0.97-1.14) |
Duration of symptoms* | ||||
Up to 5 years | 1.00 | 1.00 | 1.00 | 1.00 |
> 5 years | 1.13 (1.05-1.21) | 1.03 (0.98-1.09) | 1.26 (1.19-1.32) | 0.84 (0.78-0.92) |
Comorbidities | ||||
None | 1.00 | 1.00 | 1.00 | 1.00 |
1 | 1.06 (0.99-1.13) | 1.00 (0.94-1.07) | 0.91 (0.85-0.97) | 1.01 (0.93-1.10) |
2 | 1.25 (1.15-1.37) | 1.04 (0.96-1.12) | 0.95 (0.86-1.04) | 0.99 (0.86-1.14) |
3 or more | 1.45 (1.30-1.63) | 1.24 (1.12-1.37) | 1.19 (1.06-1.34) | 1.14 (0.96-1.35) |
Condition-specific PROM | ||||
per 10 point worse score | 1.17 (1.11-1.24) | 1.15 (1.09-1.21) | - | 1.06 (1.02-1.11) |
EQ-5D index score | ||||
per 0.1 point worse score | 1.04 (1.03-1.06) | 1.05 (1.04-1.06) | 1.06 (1.05-1.08) | 1.07 (1.05-1.09) |
Organisational factors | ||||
Administration of pre-operative questionnaire** | ||||
On admission | 1.06 (0.96-1.16) | 1.06 (0.97-1.16) | 1.03 (0.96-1.10) | 1.11 (1.02-1.21) |
Before admission | 1.00 | 1.00 | 1.00 | 1.00 |
Provider type | Â | Â | Â | Â |
NHS | 1.14 (1.06-1.24) | 1.24 (1.15-1.34) | 1.07 (1.00-1.15) | 1.08 (0.94-1.23) |
Independent | 1.00 | 1.00 | 1.00 | 1.00 |
Provider recruitment*** | ||||
per 20% point increase | 1.02 (0.98-1.07) | 1.03 (0.99-1.06) | 1.02 (0.98-1.07) | 0.99 (0.94-1.04) |