Table 2.

Summary of admission diagnoses of patients

Diagnosis	Control patients without delirium in first week (%) (N = 868)	Number of patients with incident delirium (%) (N = 126)	P-value (Pearson)	Odds ratios	95 % confidence intervals
Pneumonia	65 (7.49 %)	10 (7.94 %)	0.86	1.07	0.53 to 2.13
Congestive heart failure	64 (7.37 %)	12 (9.52 %)	0.40	1.32	0.69 to 2.53
Chronic obstructive pulmonary disease exacerbation	35 (4.03 %)	4 (3.17 %)	0.64	0.78	0.27 to 2.23
Gastrointestinal bleed	80 (9.22 %)	6 (4.76 %)	0.097	0.49	0.21 to 1.15
Other gastrointestinal disease	56 (6.45 %)	6 (4.76 %)	0.46	0.73	0.31 to 1.72
Urinary tract infection	37 (4.26 %)	7 (5.56 %)	0.51	1.32	0.58 to 3.03
Cancer	46 (5.30 %)	8 (6.35 %)	0.63	1.21	0.56 to 2.63
Falls/Functional decline	69 (7.95 %)	16 (12.70 %)	0.08	1.68	0.94 to 3.01
TIA/Ischemic Stroke/Intracerebral Hemorrhage	71 (8.18 %)	4 (3.17 %)	0.05	0.37	0.13 to 1.03
Endocrine/Electrolyte/Hematologic abnormality	61 (7.03 %)	11 (8.73 %)	0.49	1.27	0.65 to 2.48
Other cardiopulmonary disease	59 (6.80 %)	11 (8.73 %)	0.43	1.31	0.67 to 2.57
Renal failure	21 (2.42 %)	2 (1.59 %)	0.58	0.65	0.15 to 2.81
Pre-syncope/Syncope	17 (1.96 %)	3 (2.38 %)	0.75	1.22	0.35 to 4.23
Musculoskeletal	39 (4.45 %)	8 (6.35 %)	0.36	1.44	0.66 to 3.16
Cellulitis	19 (2.19 %)	4 (3.17)	0.49	1.47	0.49 to 4.38
Pain/Weakness	23 (2.65 %)	2 (1.59 %)	0.48	0.59	0.14 to 2.54
Other diagnoses	106 (12.21 %)	12 (9.52 %)	0.38	0.76	0.40 to 1.42