Table 1.
Characteristics of patients from merging Australian Stroke Clinical Registry (AuSCR) and Ambulance Victoria (AV) data.
| Matched (N = 4569) n (%) | AV only (N = 1432) n (%) | AuSCR only (N = 2804) n (%) | AuSCR - Arrived by ambulance (matched data, N = 3,597, 80%) n (%) | |||
|---|---|---|---|---|---|---|
| Suspected of stroke 3604 (79) | Not suspected of stroke 965 (21) | Suspected of stroke 843 (59) | Not suspected of stroke 589 (41) | |||
| Female | 1495 (41) | 436 (45) | 341 (41) | 189 (40) | 1153 (41) | 1521 (42) |
| Age (y) | ||||||
| <65 | 972 (27) | 281 (29) | 345 (41) | 323 (40) | 1105 (39) | 952 (26) |
| 65-74 | 1167 (32) | 297 (31) | 280 (33) | 192 (33) | 844 (30) | 1167 (32) |
| 75+ | 1465 (41) | 386 (40) | 218 (26) | 162 (27) | 855 (31) | 1478 (41) |
| Median age (Q1, Q3) | 72 (63, 78) | 73 (64, 79) | 68 (56, 75) | 68 (57, 75) | 69 (59, 77) | 73 (64, 79) |
| Country of birth | ||||||
| Australia | 2273 (66) | 598 (66) | Variable not collected by AV | 1783 (67) | 2290 (67) | |
| United Kingdom | 231 (7) | 68 (7) | 179 (7) | 216 (6) | ||
| Italy | 197 (6) | 59 (6) | 103 (4) | 203 (6) | ||
| Other European | 420 (12) | 111 (12) | 272 (10) | 415 (12) | ||
| Asia | 135 (4) | 37 (4) | 202 (8) | 139 (4) | ||
| Other countries | 163 (4) | 38 (5) | 142 (5) | 163 (5) | ||
| Previous stroke/TIA | 828 (26) | 187 (22) | Variable not collected by AV | 516 (21) | 873 (25) | |
| Type of stroke | ||||||
| Hemorrhagic | 367 (11) | 143 (17) | Variable not collected by AV | 191 (7) | 440 (12) | |
| Ischemic | 2190 (66) | 565 (66) | 1687 (62) | 2436 (68) | ||
| TIA | 604 (18) | 122 (14) | 793 (29) | 632 (18) | ||
| Undetermined stroke | 141 (4) | 29 (3) | 66 (2) | 85 (2) | ||
| Stroke severity | ||||||
| Able to walk on admission | 734 (41) | 716 (34) | Variable not collected by AV | 1538 (64) | 1220 (36) | |
Ability to walk on admission (proxy for stroke severity collected in AuSCR, Ambulance Victoria collects Glasgow Comma Scale); TIA = transient ischaemic attack; Q1 = 25th percentile; Q3 = 75th percentile.
Notes: 1) Of the AuSCR epidsodes that were not matched (n = 2,804) to the AV dataset, majority did not arrive by ambulance (n = 1,721, 61%); others arrived by ambulance (n = 743, 27%) and others had missing arrival status (n = 340, 12%).