Table 5.
Statistical modelling results, showing the odds ratio for each variable in the model together with 95% confidence intervals (all p-values < 0.001)
| Elective Admissions (n = 153,036) |
Emergency Admissions (n = 3,105,249) |
|||||
|---|---|---|---|---|---|---|
| Covariate | Odds Ratio | lower CI | upper CI | Odds Ratio | lower CI | upper CI |
| Male | 1.34 | 1.28 | 1.40 | 1.16 | 1.13 | 1.20 |
| Age Category 1: 40-44 years† | 1.34 | 1.03 | 1.74 | 2.99 | 2.27 | 3.94 |
| Age Category 2: 45-49 years | 2.22 | 1.78 | 2.77 | 4.98 | 3.91 | 6.33 |
| Age Category 3: 50-54 years | 2.73 | 2.22 | 3.35 | 6.36 | 5.05 | 8.02 |
| Age Category 4: 55-59 years | 3.94 | 3.27 | 4.75 | 10.25 | 8.30 | 12.65 |
| Age Category 5: 60-64 years | 5.13 | 4.31 | 6.09 | 13.54 | 11.08 | 16.54 |
| Age Category 6: 65-69 years | 6.16 | 5.19 | 7.30 | 17.54 | 14.41 | 21.34 |
| Age Category 7: 70-74 years | 8.71 | 7.38 | 10.29 | 32.03 | 26.52 | 38.68 |
| Age Category 8 75-79 years | 12.85 | 10.91 | 15.13 | 40.43 | 33.58 | 48.68 |
| Age Category 9: 80-84 years | 15.92 | 13.48 | 18.80 | 48.95 | 40.69 | 58.88 |
| Age Category 10: 85-89 years | 21.91 | 18.44 | 26.04 | 58.35 | 48.51 | 70.20 |
| Age Category 11: 90-120 years | 28.40 | 23.10 | 34.91 | 76.88 | 63.76 | 92.70 |
| HRG withcc (vs HRG without cc) | 8.20 | 5.98 | 11.22 | 5.39 | 4.03 | 7.23 |
| Age Category 1 and HRG withcc | 0.88 | 0.53 | 1.46 | 0.79 | 0.51 | 1.22 |
| Age Category 2 and HRG withcc | 0.74 | 0.48 | 1.15 | 0.47 | 0.32 | 0.71 |
| Age Category 3 and HRG withcc | 0.46 | 0.30 | 0.69 | 0.56 | 0.39 | 0.81 |
| Age Category 4 and HRG withcc | 0.49 | 0.34 | 0.71 | 0.43 | 0.30 | 0.60 |
| Age Category 5 and HRG withcc | 0.40 | 0.28 | 0.56 | 0.41 | 0.30 | 0.57 |
| Age Category 6 and HRG withcc | 0.35 | 0.25 | 0.49 | 0.36 | 0.27 | 0.50 |
| Age Category 7 and HRG withcc | 0.16 | 0.11 | 0.22 | 0.10 | 0.08 | 0.14 |
| Age Category 8 and HRG withcc | 0.12 | 0.09 | 0.17 | 0.11 | 0.08 | 0.15 |
| Age Category 9 and HRG withcc | 0.13 | 0.09 | 0.19 | 0.12 | 0.09 | 0.16 |
| Age Category 10 and HRG withcc | 0.14 | 0.10 | 0.20 | 0.13 | 0.10 | 0.18 |
| Age Category 11 and HRG withcc | 0.17 | 0.11 | 0.24 | 0.14 | 0.10 | 0.19 |
| Admission Quarter (Jul-Sep)* | 1.09 | 1.02 | 1.16 | 0.96 | 0.92 | 1.01 |
| Admission Quarter (Oct-Dec) | 1.06 | 0.99 | 1.13 | 0.93 | 0.89 | 0.97 |
| Admission Quarter (Jan-Mar) | 1.14 | 1.07 | 1.22 | 1.06 | 1.02 | 1.11 |
| Complex Elderly | 16.83 | 15.38 | 18.41 | 3.05 | 2.91 | 3.18 |
| Zero day stay! | 0.09 | 0.07 | 0.11 | - | - | - |
| Weekend vs. Weekday | 1.32 | 1.23 | 1.41 | 1.09 | 1.05 | 1.13 |
† Reference category is age 16-39 years. * Reference category is Apr-Jun. Covariates terms with "and" indicate interaction terms. ! Not applicable for emergency admissions