Age median, [IQR]
|
65 [53–74]
|
65 [53–74]
|
0.99c
|
65 [53–74]
|
Male sex (%)
|
57%
|
57%
|
0.87b
|
57%
|
APACHE II score median, [IQR]
|
15 [11–19]
|
14 [11–19]
|
0.08a
|
15 [11–19]
|
ICU length of stay days median [IQR]
|
3 [2–6]
|
3 [2–6]
|
0.33a
|
3 [2–6]
|
Hospital length of stay days median [IQR]
|
15 [9–26]
|
15 [8–25]
|
0.23a
|
15 [8–25]
|
Reason for ICU admission n (%)
| | | | |
Respiratory tract infection
|
237 (10)
|
192 (8)
|
0.16b
|
429 (9)
|
Major vascular procedure
|
185 (8)
|
171 (7)
|
0.93b
|
356 (7)
|
Large bowel tumour
|
148 (6)
|
173 (7)
|
0.07b
|
321 (7)
|
Acute renal failure
|
109 (4)
|
90 (4)
|
0.42b
|
199 (4)
|
Chronic obstructive pulmonary disease
|
79 (3)
|
76 (3)
|
0.95b
|
155 (3)
|
Bowel perforation
|
66 (3)
|
47 (2)
|
0.18b
|
113 (2)
|
Septicaemia/septic shock
|
60 (2)
|
61 (3)
|
0.73b
|
121 (3)
|
Oesophageal neoplasm
|
56 (2)
|
70 (3)
|
0.14b
|
126 (3)
|
Status epilepticus
|
52 (2)
|
44 (2)
|
0.69b
|
96 (2)
|
Self-poisoning
|
44 (2)
|
53 (2)
|
0.27b
|
97 (2)
|
Not recorded
|
77 (3)
|
64 (3)
|
0.53b
|
141 (3)
|
Other
|
1353 (55)
|
1274 (55)
| |
2627 (55)
|
Self-reported demographics n (%)
| | | | |
Current address
|
Usual address
|
2305 (93)
|
2165 (94)
| |
4470 (93)
|
|
Family
|
36 (1)
|
38 (2)
| |
74 (2)
|
|
Rehabilitation
|
19 (1)
|
11 (0)
| |
30 (1)
|
|
Other
|
36 (1)
|
38 (2)
| |
74 (2)
|
|
Not usual (unspecified)
|
13 (1)
|
10 (0)
| |
23 (0)
|
|
Missing
|
57 (2)
|
53 (2)
|
0.79b
|
110 (2)
|
Higher education
|
Yes
|
985 (40)
|
983 (42)
| |
1968 (41)
|
|
No
|
1235 (50)
|
1138 (49)
| |
2373 (50)
|
|
Missing
|
246 (10)
|
194 (8)
|
0.07b
|
440 (9)
|
University degree
|
Yes
|
580 (24)
|
600 (26)
| |
1180 (25)
|
|
No
|
1700 (69)
|
1579 (68)
| |
3279 (69)
|
|
Missing
|
186 (8)
|
136 (6)
|
0.02b
|
322 (7)
|
Current employment status
|
Full time
|
245 (10)
|
213 (9)
| |
458 (10)
|
|
Part time
|
108 (4)
|
129 (6)
| |
237 (5)
|
|
Seeking
|
27 (1)
|
35 (2)
| |
62 (1)
|
|
Retired
|
1353 (55)
|
1250 (54)
| |
2603 (54)
|
|
Sick
|
380 (15)
|
376 (16)
| |
756 (16)
|
|
Housework
|
120 (5)
|
110 (5)
| |
230 (5)
|
|
Student
|
24 (1)
|
17 (1)
| |
41 (1)
|
|
Other
|
112 (5)
|
97 (4)
| |
209 (4)
|
|
Missing
|
97 (4)
|
88 (4)
|
0.47b
|
185 (4)
|
Prior employment status
|
Full time
|
437 (18)
|
388 (17)
| |
825 (17)
|
|
Part time
|
189 (8)
|
190 (8)
| |
379 (8)
|
|
Seeking
|
38 (2)
|
24 (1)
| |
62 (1)
|
|
Retired
|
1233 (50)
|
1170 (51)
| |
2403 (50)
|
|
Sick
|
168 (7)
|
169 (7)
| |
337 (7)
|
|
Housework
|
132 (5)
|
105 (5)
| |
237 (5)
|
|
Student
|
27 (1)
|
16 (1)
| |
43 (1)
|
|
Other
|
75 (3)
|
87 (4)
| |
162 (3)
|
|
Missing
|
167 (7)
|
166 (7)
|
0.28b
|
333 (7)
|
Carer now
|
Yes
|
150 (6)
|
152 (7)
| |
302 (6)
|
|
No
|
2207 (89)
|
2052 (89)
| |
4259 (89)
|
|
Missing
|
109 (4)
|
111 (5)
|
0.64b
|
220 (5)
|
Carer prior
|
Yes
|
159 (6)
|
170 (7)
| |
329 (7)
|
|
No
|
1844 (75)
|
1680 (73)
| |
3524 (74)
|
|
Missing
|
463 (19)
|
465 (20)
|
0.2b
|
928 (19)
|
Assistance
|
Answered
|
246 (10)
|
288 (12)
| |
534 (11)
|
|
Unable
|
68 (3)
|
42 (2)
| |
110 (2)
|
|
Unspecified
|
21 (1)
|
26 (1)
| |
47 (1)
|
|
No
|
2050 (83)
|
1893 (82)
| |
3943 (82)
|
|
Missing
|
81 (3)
|
66 (3)
|
0.01b
|
147 (3)
|
Mental problems now
|
Yes
|
334 (14)
|
298 (13)
| |
632 (13)
|
|
No
|
2034 (82)
|
1912 (83)
| |
3946 (83)
|
|
Missing
|
98 (4)
|
105 (5)
|
0.52b
|
203 (4)
|
Mental problems prior
|
Yes
|
354 (14)
|
331 (14)
| |
685 (14)
|
|
No
|
1730 (70)
|
1636 (71)
| |
3366 (70)
|
|
Missing
|
382 (15)
|
348 (15)
|
0.9b
|
730 (15)
|