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Table 1 Characteristics of patients at admission

From: Risk factors for mortality in hospitalized patients with COVID-19 at the start of the pandemic in Belgium: a retrospective cohort study

 

All patients

(n = 319)

Discharged

(n = 238)

Deceased

(n = 81)

p-value

Baseline and demographic parameters

 Median age (IQR) — yr

74 (61–83)

71 (59–79)

82 (76–86)

< 0.0001

 Male — no. (%)

188 (58.93)

138 (57.98)

50 (61.73)

0.5530

 Nursing home resident — no. (%)

30/318 (9.43)

17/137 (7.17)

13/81 (16.05)

0.0249

 Smoking history

  - Current smoker — no. (%)

20/181 (11.05)

18/131 (13.74)

2/50 (4.00)

0.0619c

  - Former smoker — no. (%)

63/181 (34.81)

42/131 (32.06)

21/50 (42.00)

0.2131

  - Never smoker— no. (%)

98/181 (54.14)

71/131 (54.20)

27/50 (54.00)

0.9809

 BMI (IQR)

26.75 (23.79–29.74)

26.35 (23.72–29.19)

28.17 (23.83–30.97)

0.0472

  - Underweighta - no. (%)

4/230 (1.74)

3/174 (1.72)

1/56 (1.79)

 

  - Normal weighta - no. (%)

80/230 (34.78)

63/174 (36.21)

17/56 (30.36)

0.4206

  - Overweighta - no. (%)

92/230 (40.00)

73/174 (41.95)

19/56 (33.93)

0.2830

  - Obesitya — no. (%)

54/230 (23.48)

35/174 (20.11)

19/56 (33.93)

0.0390

  - Not known

89

64

25

 

 Diabetes — no. (%)

65 (20.38)

38 (15.97)

27 (33.33)

0.0012

 Hypertension — no. (%)

162 (50.78)

101 (42.44)

61 (75.31)

< 0.0001

  - Use of ACE inhibitor

60/251 (23.90)

39/178 (21.91)

21/73 (28.77)

0.2530

  - Use of ATII antagonist

30/250 (12.00)

18/177 (10.17)

12/73 (16.44)

0.1764

 COPD — no. (%)

40 (12.54)

27 (11.34)

13 (16.05)

0.2805

 Asthma — no. (%)

16 (5.02)

12 (5.04)

4 (4.94)

0.9286c

 Coronary artery disease — no. (%)

72 (22.57)

47 (19.75)

25 (30.86)

0.0434

 Chronic renal disease — no. (%)

62/318 (19.50)

34/237 (14.35)

28/81 (34.57)

0.0001

  - eGFR 30–60

36/314 (11.46)

26/233 (11.16)

10/81 (12.35)

0.7743

  - eGFR 15–30

17/314 (5.41)

5/233 (2.15)

12/81 (14.81)

< 0.0001

  - eGFR < 15

3/314 (0.96)

0/233 (0.00)

3/81 (3.70)

0.0090c

  - HD/PD

7 (2.19)

4 (1.68)

3 (3.70)

0.2582c

 Cerebrovascular disease — no. (%)

48 (15.05)

30 (12.61)

18 (22.22)

0.0433

 Immunocompromised — no. (%)

42 (13.17)

32 (13.45)

10 (12.35)

0.7992

  - Immunosuppressive drugs

31 (9.72)

23 (9.66)

8 (9.88)

0.9556

  - Active chemotherapy

16 (5.02)

10 (4.20)

6 (7.41)

0.2727

Clinical symptoms

 Mean duration of symptoms (IQR) – days

7 (3–10)

7 (4–10)

4 (1–7)

0.0007

   - Not known

30

21

9

 

 History of feverb — no. (%)

191 (59.87)

148 (62.18)

43 (53.09)

0.1510

 Cough — no. (%)

211 (66.14)

161 (67.65)

50 (61.73)

0.3339

   - purulent

47 (14.73)

36 (15.13)

11 (13.58)

0.7327

 Dyspnea — no. (%)

208 (65.20)

152 (63.87)

56 (69.14)

0.3867

 Thoracic pain — no. (%)

29 (9.09)

26 (10.92)

3 (3.70)

0.0488c

 Myalgia — no. (%)

61 (19.12)

57 (23.95)

4 (4.94)

< 0.0001c

 Diarrhea — no. (%)

49 (15.36)

38 (15.97)

11 (13.58)

0.6029

 Abdominal pain— no. (%)

25 (7.84)

20 (8.40)

6 (6.17)

0.5088

 Anorexia — no. (%)

93 (29.15)

76 (31.93)

17 (20.99)

0.0556

 Nausea — no. (%)

55 (17.24)

45 (18.91)

10 (12.35)

0.1644

 Vomiting — no. (%)

45 (14.11)

37 (15.55)

8 (9.88)

0.1908

 Syncope — no. (%)

12 (3.76)

8 (3.36)

4 (4.94)

0.4583c

 Headache — no. (%)

35 (10.97)

32 (13.45)

3 (3.70)

0.0117c

 Confusion — no. (%)

29 (9.09)

20 (8.40)

9 (11.11)

0.4728

 History of falling — no. (%)

19 (5.96)

8 (3.36)

11 (13.58)

0.0019

 Anosmia — no. (%)

20 (6.27)

18 (7.56)

2 (2.47)

0.1103c

Parameters

 Temperature > 38 °C – no. (%)

52 (16.30)

41 (17.23)

11 (13.58)

0.4354

 Respiratory rate (IQR) – breaths per min

16 (14–20)

16 (15–20)

16 (14–18)

0.5534

  - Not measured

25

16

9

 

 Mean arterial blood pressure (IQR) - mmHg

94 (84–102)

93 (84–102)

97 (83–104)

0.6908

  - Not measured

7

3

4

 
  1. aBody mass index (the weight in kilograms divided by the square of the height in meters) was categorized as: < 18.5, underweight; 18.5–25, normal weight; 25–30, overweight; > 30 obese
  2. bFever was defined as a measured body temperature > 38.0 °C
  3. cUnivariate logistic regression used Firth correction when small cell counts (< 5) occurred