Table 1.
30-day mortality by 10-year age intervals throughout the study periods.
| 30-day mortality (%) | Period 1 March (n=810) | Period 2 April (n=504) | Period 3 May (n=67) | Period 4 June (n=22) | Period 5 July (n=77) | Period 6 August (n=91) | Period 7 September (n=74) | p |
|---|---|---|---|---|---|---|---|---|
| <40 y | 1/90 (1%) | 0/55 (0%) | 0/9 (0%) | 0/6 (0%) | 0/14 (0%) | 0/13 (0%) | 0/7 (0%) | 0•465 |
| 40–49 y | 1/105 (1%) | 0/62 (0%) | 0/7 (0%) | 0/0 (0%) | 0/18 (0%) | 0/12 (0%) | 0/17 (0%) | 0•474 |
| 50–59 y | 6/155 (4%) | 4/86 (5%) | 0/7(0%) | 0/4 (0%) | 0/17(0%) | 0/12(0%) | 0/19(0%) | 0•173 |
| 60–69 y | 9/180 (5%) | 8/90 (9%) | 0/14 (0%) | 0/2 (0%) | 0/8 (0%) | 0/25 (0%) | 1/11 (9%) | 0•482 |
| 70–79 y | 38/186 (20%) | 9/84 (11%) | 2/10 (20%) | 0/6 (0%) | 1/11 (9%) | 1/15 (7%) | 0/11 (0%) | 0•012 |
| 80–89 y | 31/80 (39%) | 22/94 (24%) | 2/11 (18%) | 0/3 (0%) | 1/5 (20%) | 2/12 (17%) | 0/8 (0%) | 0•005 |
| >90 y | 8/14 (57%) | 9/33 (27%) | 1/9 (11%) | 0/1 (0%) | 2/4 (50%) | 0/2 (0%) | 0/1 (0%) | 0•133 |
| All patients | 94/810 (11•6%) | 52/504 (10•3%) | 5/67 (7•5%) | 0/22 (0%) | 4/77 (5•2%) | 3/91 (3•3%) | 1/74 (1•4%) | <0•001 |