Environmental variables | | | |
Apparent temperature (°C) | | | | |
Mean (SD) | 13.8 (10.0) | 14.3 (10.4) | 15.7 (8.6) | 11.9 (9.4) |
Min | −5.8 | −6.1 | −2.8 | −6.0 |
Max | 33.9 | 37.5 | 33.3 | 33.2 |
Percentiles | | | | |
25th | 5.0 | 5.4 | 8.4 | 3.7 |
50th | 13.3 | 13.6 | 15.4 | 11.2 |
75th | 22.1 | 23.1 | 22.8 | 19.8 |
Difference of apparent temperature between “case-day” and “control-days” (°C) | | | | |
Mean (SD) | 0.2 (4.8) | 0.1 (4.8) | 0.1 (4.5) | 0.1 (4.8) |
Min | −21.1 | −23.6 | −16.6 | −20.9 |
Max | 21.1 | 23.6 | 16.6 | 20.9 |
Percentiles | | | | |
25th | −3.0 | −3.0 | −2.8 | −3.0 |
50th | 0.2 | 0.1 | 0.1 | 0.1 |
75th | 3.3 | 3.3 | 3.0 | 3.2 |
Barometric pressure (hPa) | | | | |
Mean (SD) | 1016 (7.4) | 1016 (7.4) | 1015 (6.6) | 1017 (7.6) |
PM10 (μg/m3) | | | | |
Mean (SD) | 50.4 (31.7) | 56.7 (37.4) | 47.3 (19.8) | 65.5 (34.8) |
Ozone (μg/m3) (April to September) | | | | |
Mean (SD) | 102.2 (35.9) | 117.4 (42.6) | 110.8 (30.5) | 100.8 (39.0) |
Population under study | | | | |
No of deaths (%), age 65+ years | 14 838 (100.0) | 45 818 (100.0) | 123 484 (100.0) | 44 456 (100.0) |
Location of death | | | | |
Nursing home | – | 6868 (15.0) | – | 3173 (7.1) |
Out of hospital | 6105 (41.1) | 18 354 (40.1) | 59 524 (48.2) | 12 468 (28.1) |
In hospital (<2 days) | 2870 (19.4) | 4422 (9.6) | 10 937 (8.9) | 8926 (20.1) |
In hospital (⩾2 days) | 5858 (39.5) | 16 174 (35.3) | 53 023 (42.9) | 19 889 (44.7) |