Table 2.
Sample demographics.
| Characteristics |
Overall sample n = 5,914 |
DBMAS n = 5,202 |
SBRT n = 712 |
p-value |
|---|---|---|---|---|
| Age, y | <0.001 | |||
| Mean (SD) | 82.3 (8.6) | 82.6 (8.5) | 80.1 (8.8) | |
| Median (IQR) | 83.0 (77.0–89.0) | 84.0 (78.0–89.0) | 81.0 (75.0–86.0) | |
| Sex, n (%) | <0.001 | |||
| Female | 3,304 (55.9) | 3,015 (58.0) | 289 (40.6) | |
| Male | 2,604 (44.0) | 2,182 (42.0) | 422 (59.3) | |
| Other | 6 (0.1) | 5 (0.1) | 1 (0.1) | |
| Dementia subtype, n (%) | 0.001 | |||
| AD | 2,212 (37.4) | 1,908 (36.7) | 304 (42.7) | |
| DUN | 1,894 (32.1) | 1,730 (33.2) | 164 (23.0) | |
| VaD | 689 (11.7) | 596 (11.5) | 93 (13.1) | |
| MD | 450 (7.6) | 392 (7.5) | 58 (8.2) | |
| DLB | 176 (3.0) | 153 (2.9) | 23 (3.2) | |
| FTD | 200 (3.4) | 169 (3.3) | 31 (4.4) | |
| PDD | 77 (1.3) | 67 (1.3) | 10 (1.4) | |
| ARD | 83 (1.4) | 71 (1.4) | 12 (1.7) | |
| Other | 133 (2.3) | 116 (2.2) | 17 (2.4) | |
| Case length, days | 0.016 | |||
| Mean (SD) | 57.2 (26.3) | 56.8 (25.9) | 59.6 (28.7) | |
| Median (IQR) | 52.0 (40.0–69.0) | 52.0 (39.0–69.0) | 54.0 (40.0–74.0) | |
| Location, n (%) | ||||
| New South Wales | 1,770 (29.9) | 1,586 (30.5) | 184 (25.8) | 0.005 |
| Victoria | 1,269 (21.5) | 1,083 (20.8) | 186 (26.1) | |
| Western Australia | 672 (11.4) | 582 (11.2) | 90 (12.6) | |
| South Australia | 777 (13.1) | 691 (13.3) | 86 (12.1) | |
| Queensland | 1,028 (17.4) | 899 (17.3) | 129 (18.1) | |
| Tasmania | 213 (3.6) | 192 (3.7) | 21 (2.9) | |
| Australian Capital Territory | 120 (2.0) | 110 (2.1) | 10 (1.4) | |
| Northern Territory | 65 (1.1) | 59 (1.1) | 6 (0.8) | |
| Primary language, n (%) | 0.089 | |||
| English | 4,650 (78.6) | 4,064 (78.1) | 586 (82.3) | |
| Italian | 274 (4.7) | 245 (4.7) | 29 (4.1) | |
| Greek | 156 (2.6) | 140 (2.7) | 16 (2.2) | |
| Croatian | 49 (0.8) | 45 (0.9) | 4 (0.6) | |
| Arabic | 48 (0.8) | 45 (0.9) | 3 (0.4) | |
| Spanish | 29 (0.5) | 27 (0.5) | 2 (0.3) | |
| Cantonese | 28 (0.5) | 23 (0.4) | 5 (0.7) | |
| Other | 329 (5.6) | 292 (5.6) | 37 (5.2) | |
| Unknown/missing | 351 (5.9) | 321 (6.2) | 30 (4.2) | |
| Place of birth by country or region, n (%) | 0.394 | |||
| Australia | 3,507 (59.3) | 3,067 (59.0) | 440 (61.8) | |
| UK | 559 (9.4) | 483 (9.3) | 76 (10.7) | |
| Italy | 341 (5.8) | 297 (5.7) | 44 (6.2) | |
| Greece | 187 (3.2) | 170 (3.3) | 17 (2.4) | |
| China | 37 (0.6) | 33 (0.6) | 4 (0.6) | |
| Middle East | 72 (1.2) | 67 (1.3) | 5 (0.7) | |
| India | 33 (0.6) | 32 (0.6) | 1 (0.1) | |
| Other | 807 (13.6) | 715 (13.7) | 92 (12.9) | |
| Unknown/missing | 371 (6.3) | 338 (6.5) | 33 (4.6) |
DBMAS, Dementia Behaviour Management Advisory Service; SBRT, Severe Behaviour Response Teams; SD, standard deviation; IQR, interquartile range; AD, Alzheimer's disease; DUN, dementia unspecified or unknown; VaD, vascular dementia; MD, mixed dementia; DLB, dementia with Lewy bodies; FTD, frontotemporal dementia; PDD, Parkinson's disease dementia; ARD, alcohol-related dementia. Other dementias include dementia in other substance abuse, dementia in human immunodeficiency virus and dementia in Huntington's disease. P-values are from Pearson's Chi-Squared tests.