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Table 1 General characteristic data of the study population

From: Automated left atrial strain analysis for predicting atrial fibrillation in severe COVID-19 pneumonia: a prospective study

Variables

No AF

(n = 63)

AF

(n = 16)

P value

Age (years)

65 [59–70]

73 [65–76]

0.026

BMI (kg.m−2)

31.5 [24.9–40.7]

29.3 [26.2–32.8]

0.8

SAPS II score during TTE

32 [21–49]

58 [43–62]

0.001

Male gender (n; %)

40 (65)

14 (88)

0.12

Medical history

 No history

8 (13)

3 (19)

0.68

 Hypertension

31 (50)

12 (75)

0.09

 Diabetes

13 (21)

6 (38)

0.19

 Dyslipidemia

19 (31)

4 (25)

0.76

 Smoking (former or active)

20 (33)

4 (25)

0.76

 Chronic renal disease

5 (8)

2 (12)

0.62

 COPD/asthma

11 (18)

2 (13)

1

 Coronary or peripheral artery disease

15 (24)

5 (32)

0.53

 Obstructive sleep apnea

5 (8)

1 (6)

1

Chronic treatment

 Statine

19 (31)

7 (44)

0.38

 Beta blocker

17 (28)

6 (38)

0.54

 ACE inhibitor

11 (18)

5 (32)

0.30

 ARBs

14 (23)

3 (18)

1

 Diuretic

9 (15)

4 (25)

0.45

 Aspirin

14 (23)

6 (38)

0.33

 Metformin

9 (15)

4 (25)

0.45

Time to first symptom to ICU admission (days)

8 [5–11]

8 [4–14]

0.56

COVID 19 specific treatment (n = 67/89)

 Dexamethasone

49 (81)

11 (74)

0.70

 Remdesevir

3 (5)

0

1

 Tocillizumab

1 (2)

0

1

Atrial fibrillation

 Previous paroxysmal AF

6 (10)

2 (12)

0.61

 Occurrence of AF, (days)

7 [2–11]

 CHA2DS2-VASc

2 [1–3]

3 [1–4]

0.20

Outcome

 Arterial thromboembolic events

0

1 (6)*

0.21

 Length under MV, days

17 [10–24]

28 [16–44]

 < 0.001

 Mortality at 30-days

14 (22)

7 (43)

0.11

 ICU discharge, days

61 (93)

13 (82)

0.06

 Length of stay in ICU, days

12 [5–21]

25 [14–33]

 < 0.001

  1. Bold indicates P < 0.05
  2. Continuous variables are expressed as median [interquartile range] and categorical variables as number (percentage)
  3. ACE angiotensin-converting enzyme, AF atrial fibrillation, ARBs angiotensin II receptor blockers, BMI body mass index, COPD chronic obstructive pulmonary disease, ICU intensive care unit, MV mechanical ventilation, SAP systolic arterial pressure, SAPS simplified acute physiology score, TTE transthoracic echocardiography
  4. *ischemic stroke