Complexity | Adjusted IRR (95% CI) | P-value | |
---|---|---|---|
Prescription group (ref category: none) | |||
1–4 | 3.3812 | (3.2651 to 3.5014) | <0.001 |
5–9 | 5.5731 | (5.3808 to 5.7724) | <0.001 |
≥10 | 9.8991 | (9.5501 to 10.2608) | <0.001 |
Frailty category (reference category: fit) | |||
Mild | 1.1794 | (1.1627 to 1.1963) | <0.001 |
Moderate | 1.3917 | (1.3693 to 1.4145) | <0.001 |
Severe | 1.6401 | (1.6101 to 1.6706) | <0.001 |
IMD quintile of deprivation (reference category: 3 – median quintile) | |||
1 (most deprived) | 0.9729 | (0.9585 to 0.9875) | 0.029 |
2 | 0.9851 | (0.9711 to 0.9992) | <0.001 |
4 | 0.9426 | (0.9281 to 0.9573) | <0.001 |
5 (least deprived) | 0.9251 | (0.9093 to 0.9412) | <0.001 |
Week of 2020 (ref category week 8) | |||
9 | 1.0391 | (1.0207 to 1.0578) | <0.001 |
10 | 1.0615 | (1.0428 to 1.0806) | <0.001 |
11 | 0.9436 | (0.9265 to 0.9609) | <0.001 |
12 | 0.5712 | (0.5594 to 0.5832) | <0.001 |
13 | 0.4007 | (0.3913 to 0.4104) | <0.001 |
14 | 0.3401 | (0.3319 to 0.3484) | <0.001 |
15 | 0.3556 | (0.3466 to 0.3648) | <0.001 |
16 | 0.3652 | (0.3560 to 0.3746) | <0.001 |
17 | 0.3968 | (0.3873 to 0.4065) | <0.001 |
18 | 0.4159 | (0.4064 to 0.4256) | <0.001 |
19 | 0.3497 | (0.3417 to 0.3580) | <0.001 |
IMD = Index of Multiple Deprivation.12 IRR = incidence rate ratio.