Table 5.
Case–fatality at 7 days, 28 days and 1 year in CARe Aosta Valley, Italy 2004–2008
| Case–fatality | ||||||
|---|---|---|---|---|---|---|
| Dead at 7 days | Dead at 28 days | Dead at 1 year | ||||
| n | Rate (95 % CI) | n | Rate (95 % CI) | n | Rate (95 % CI) | |
| First-ever stroke (n = 1,326) | 126 | 9.5 % (7.9–11.1) | 214 | 16.1 % (14.2–18.1) | 396 | 29.9 % (27.4–32.3) |
| Sex | ||||||
| Male | 55 | 8.4 % (6.3–10.6) | 97 | 14.9 % (12.2–17.6) | 187 | 28.7 % (25.2–32.2) |
| Female | 71 | 10.5 % (8.2–12.8) | 117 | 17.3 % (14.5–20.2) | 209 | 31 % (27.5–34.4) |
| p | 0.2823 | 0.3423 | 0.5505 | |||
| Age group, years | ||||||
| 0–64 | 14 | 6.1 % (3–9.2) | 20 | 8.7 % (5.1–12.3) | 30 | 13 % (8.7–17.4) |
| 65–84 | 59 | 7.9 % (6–9.8) | 99 | 13.3 % (10.8–15.7) | 193 | 25.8 % (22.7–29) |
| ≥85 | 53 | 15.2 % (11.4–19) | 95 | 27.2 % (22.5–31.9) | 173 | 49.6 % (44.3–54.8) |
| p | 0.0006 | <0.0001 | <0.0001 | |||
| Ischaemic stroke (n = 1,057) | 49 | 4.6 % (3.4–5.9) | 114 | 10.8 % (8.9–12.7) | 267 | 25.3 % (22.6–27.9) |
| Atherothrombotic (n = 153) | 1 | 0.7 % (0–1.9) | 10 | 6.5 % (2.6–10.5) | 28 | 18.3 % (12.2–24.4) |
| Embolic (n = 266) | 25 | 9.4 % (5.9–12.9) | 50 | 18.8 % (14.1–23.5) | 113 | 42.5 % (36.5–48.4) |
| Lacunar (n = 210) | 1 | 0.5 % (0–1.4) | 2 | 1 % (0–2.3) | 13 | 6.2 % (2.9–9.4) |
| Other (n = 16) | 0 | 1 | 6.2 % (0–18.1) | 1 | 6.2 % (0–18.1) | |
| Undefined (n = 412) | 22 | 5.3 % (3.2–7.5) | 51 | 12.4 % (9.2–15.6) | 112 | 27.2 % (22.9–31.5) |
| p | <0.0001 | <0.0001 | <0.0001 | |||
| Primary intracerebral haemorrhage (n = 146) | 33 | 22.6 % (15.8–29.4) | 48 | 32.9 % (25.3–40.5) | 70 | 47.9 % (39.8–56) |
| Subarachnoid haemorrhage (n = 44) | 7 | 15.9 % (5.1–26.7) | 12 | 27.3 % (14.1–40.4) | 14 | 31.8 % (18.1–45.6) |
| Stroke of undetermined type (n = 79) | 37 | 46.8 % (35.8–57.8) | 40 | 50.6 % (39.6–61.7) | 45 | 57 % (46–67.9) |
| p | <0.0001 | <0.0001 | <0.0001 | |||
Statistical differences were tested by χ2 test