Table 4.
Cohort characteristics and severity scores. Statistics are reported as median (IQR), and mean (standard deviation) for ROD or number (percentage).
| 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | |
|---|---|---|---|---|---|---|---|---|
| n, ICU admissions | 1243 | 1242 | 1267 | 980 | 1195 | 1258 | 1303 | 1366 |
| n, GC analysis | 16 | 100 | 172 | 99 | 96 | 73 | 80 | 61 |
| n, DM | N/A | 21 (21%) a | 56 (32.5%) a | 37 (37.4%) a | 46 (47.9%) a | 19 (26%) | 34 (42.5%) | 16 (26.2%) |
| Age (years) | 63 (48–70) | 65 (55–72) | 65 (55–72) | ’62 (51–70) | 66 (58–74) | 67 (59–73) | 66 (58–72) | 64 (53–70) |
| n, Age ⩾80 | 2 (12.5%) | 3 (3.0%) | 18 (10.5%) | 4 (4.0%) | 7 (7.3%) | 7 (9.6%) | 4 (5.0%) | 0 (0) |
| n, Age ⩾70 | 5 (31.3%) | 33 (33.0%) | 56 (32.6%) | 27 (27.3%) | 35 (36.5%) | 30 (41.1%) | 29 (36.3%) | 17 (27.9%) |
| APACHE II | ||||||||
| Score | 22 (17–28) | 21 (15–26) | 20 (16–25) | 20 (14–24) | 21 (16–26) | 19 (15–26) | 20 (15–28) | 18 (13–26) |
| ROD | 0.387 (0.254) | 0.343 (0.240) | 0.365 (0.251) | 0.315 (0.219) | 0.376 (0.255) | 0.341 (0.272) | 0.464 (0.289) | 0.195 (0.232) |
| APACHE III | ||||||||
| Score | 89 (63–105) | 70 (54–93) | 74 (58–92) | 70 (52–88) | 79 (60–101) | 77 (65–90) | 80 (60–102) | 71 (55–92) |
| ROD | 0.412 (0.277) | 0.294 (0.255) | 0.301 (0.263) | 0.270 (0.238) | 0.355 (0.290) | 0.304 (0.256) | 0.373 (0.309) | 0.273 (0.268) |
| n, operative | 5 (31.3%) | 40 (40.0%) | 67 (39.0%) | 39 (39.4%) | 44 (45.8%) | 33 (45.2%) | 36 (45.0%) | 22 (36.1%) |
| Mortality | ||||||||
| ICU mort | 4 (25.0%) | 23 (23.0%) | 36 (20.9%) | 16 (16.2%) | 23 (24.0%) | 13 (17.8%) | 20 (25.0%) | 13 (21.3) |
| Hospital mort | 4 (25.0%) | 26 (26.0%) | 50 (29.1%) | 25 (25.3%) | 25 (26.0%) | 17 (23.3%) | 24 (30.0%) | 15 (24.6) |
| SMR (A-II) | 0.65 | 0.76 | 0.80 | 0.80 | 0.69 | 0.68 | 0.65 | 1.26 |
| SMR (A-III) | 0.61 | 0.88 | 0.97 | 0.94 | 0.73 | 0.77 | 0.80 | 0.90 |
APACHE II and APACHE III are calibrated by the ANZICS for use in New Zealand and Australian ICUs.
a
Estimated from clinical selection of higher target range, which may over-estimate occurrence.
A-II, APACHE II; A-III, APACHE III; DM, diagnosed diabetes mellitus; GC, glycaemic control; ICU, intensive care unit; IQR, interquartile range; mort, mortality; ROD, risk of death; SMR, standardised motility ratio.