Variables

Severity of Delirium

Statistics

No severe

Less severe

Severe

Total

n (%)

n (%)

n (%)

N (%)

X²

df

P

Current medication

Regular antibiotics

62 (30.8)

19 (46.3)

8 (16.7)

89 (30.7)

26.825

8

0.001

Anti-kock’s

23 (11.4)

0 (0.0)

8 (16.7)

31 (10.7)

Oral hypoglycemic/insulin

21 (10.4)

0 (0.0)

6 (12.5)

27 (9.3)

Antihypertensive

33 (16.4)

10 (24.4)

11 (22.9)

54 (18.6)

Others

62 (30.8)

12 (29.3)

15 (31.3)

89 (30.7)

Past-year substance use/type

Nonusers

160 (97.6)

22 (53.7)

34 (70.8)

216 (74.5)

24.888

6

<0.001*

Alcohol

37 (18.4)

13 (31.7)

9 (18.8)

59 (20.3)

Multiple (alcohol, tramadol, BDZ*)

1 (0.5)

4 (9.8)

5 (10.4)

10 (3.4)

Others

3 (1.5)

2 (4.9)

0 (0.0)

5 (1.7)

Mental illness history

Yes

10 (5.0)

2 (4.9)

2 (4.2)

14 (4.8)

0.057

2

0.972*

No

191 (95.0)

39 (95.1)

46 (95.8)

276 (95.2)

Prior cognitive impairment

Yes

15 (44.1)

4 (11.8)

15 (44.1)

34 (100)

21.363

2

<0.001*

No

186 (72.7)

37 (14.4)

33 (12.9)

256 (100)

Physical impairment

Yes

20 (10.0)

0 (0.0)

4 (8.3)

24 (8.3)

7.785

2

0.020*

No

181 (90.0)

41 (100.0)

44 (91.7)

266 (91.7)

Illness duration before presentation

<2 weeks

128 (63.7)

33 (80.5)

22 (45.8)

183 (63.1)

21.664

4

<0.001*

2 - 4 weeks

51925.4)

8 (19.5)

13 (27.1)

72 (24.8)

>4 weeks

22 (10.9)

0 (0.0)

13 (27.1)

35 (12.1)

Medical diagnosis

Infectious diseases

99 (49.3)

25 (61.0)

16 (33.3)

140 (48.3)

29.470

8

<0.001*

Organ failures (CLD, CKD & HHD)

28 (13.9)

10 (24.4)

14 (29.2)

52 (17.9)

Cerebrovascular disease

18 (9.0)

2 (4.9)

8 (16.7)

28 (9.7)

Poor glycemic control

21 (10.4)

0 (0.0)

8 (16.7)

29 (10.0)

Others

35 (17.4)

4 (9.8)

2 (4.2)

41 (14.1)