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Table 1 Characteristics of ICU patients (n = 15,014) with and without new-onset atrial fibrillation (NOAF)

From: New-onset atrial fibrillation and associated outcomes and resource use among critically ill adults—a multicenter retrospective cohort study

Characteristic

New-onset atrial fibrillation (n = 1541)

No atrial fibrillation (n = 13,473)

Age, years, mean (SD)

64.7 (17.6)

58.7 (12.2)

Male, n (%)

854 (55.4)

7114 (52.8)

ICU MODS, mean (SD)

5.3 (2.4)

4.2 (2.7)

Comorbidities

 Congestive heart failure

223 (14.5)

869 (6.4)

 Peripheral vascular disease

124 (8.0)

418 (3.1)

 Hypertension

525 (34.1)

3341 (24.8)

 Chronic obstructive pulmonary disease

176 (11.4)

1414 (10.5)

 Diabetes mellitus

427 (27.7)

3422 (25.4)

 Chronic kidney disease

129 (8.4)

1037 (7.7)

 Liver disease

63 (4.1)

528 (3.9)

 Malignancy

221 (14.3)

1874 (13.9)

 Alcohol misuse

81 (5.3)

732 (5.4)

 Psychosis

23 (1.5)

139 (1.0)

 Depression

41 (2.7)

288 (2.1)

Elixhauser Comorbidity Score, mean (SD)

5.3 (4.1)

4.1 (3.7)

Daytime ICU admission (0800–1700), n (%)

932 (60.5)

8472 (62.9)

Location prior to ICU admission, n (%)

 Emergency department

653 (42.4)

5930 (44.0)

 Hospital wards

501 (32.5)

4374 (32.5)

 Operating room

78 (5.1)

754 (5.6)

 Peripheral hospital

309 (20.1)

2415 (17.9)

Previous ED visits, mean (SD)a

2.3 (2.5)

2.3 (2.2)

Previous ICU admissions, mean (SD)a

0.3 (1.0)

0.7 (1.1)

Previous ICU days, mean (SD)a

2.3 (5.4)

2.0 (5.0)

No CPR directive at admission, n (%)

299 (19.4)

1480 (11.0)

Most responsible diagnosis, n (%)

 Infection/sepsis

349 (22.6)

2037 (15.1)

 Respiratory failure

289 (18.8)

2732 (20.3)

 Trauma

137 (8.9)

1388 (10.3)

 Malignancy

117 (7.6)

1283 (9.5)

 Spontaneous intracranial hemorrhage

99 (6.4)

1182 (8.8)

 Stroke

90 (5.8)

1073 (8.0)

 Overdose/poisoning

36 (2.3)

432 (3.2)

 Renal failure

41 (2.6)

399 (3.0)

 Gastrointestinal bleeding

57 (3.7)

321 (2.4)

 Congestive heart failure

104 (6.7)

409 (3.0)

 Cardiac arrest

22 (1.4)

188 (1.4)

 Seizures/status epilepticus

18 (1.2)

202 (1.5)

 Diabetic ketoacidosis

9 (0.6)

116 (0.9)

 Other

173 (11.2)

1711 (12.7)

  1. Abbreviations: CPR cardiopulmonary resuscitation, ED emergency department, ICU intensive care unit, MODS Multiple Organ Dysfunction Score, SD standard deviation
  2. aOnly including patients with previous visits to the Ottawa Hospital