Table 1 Cohort description of patient characteristics at hospital admission, by event type

Total

3995 (100)

315 (8^∗)

3619 (90.5^∗)

Age group, years

0-17

291 (7.28)

2 (0.63)

288 (7.96)

18-39

1648 (41.25)

26 (8.25)

1600 (44.21)

40-49

809 (20.25)

75 (23.81)

721 (19.92)

50-59

652 (16.32)

92 (29.21)

548 (15.14)

60-69

418 (10.46)

75 (23.81)

333 (9.2)

70-79

140 (3.5)

36 (11.43)

101 (2.79)

80+

37 (0.93)

9 (2.86)

28 (0.77)

Gender

Male

2814 (70.44)

265 (84.13)

2500 (69.08)

Female

1181 (29.56)

50 (15.87)

1119 (30.92)

BMI

<18.5

92 (2.3)

1 (0.32)

90 (2.49)

18.5-24.9

688 (17.22)

35 (11.11)

642 (17.74)

25-29.9

836 (20.93)

63 (20)

757 (20.92)

30-34.9 (obese class I)

402 (10.06)

44 (13.97)

354 (9.78)

35-39.9 (obese class II)

159 (3.98)

19 (6.03)

138 (3.81)

≥40 (obese class III)

81 (2.03)

9 (2.86)

72 (1.99)

Missing

1737 (43.48)

144 (45.71)

1566 (43.27)

Smoker

No

2129 (53.29)

157 (49.84)

1927 (53.25)

Yes

140 (3.5)

8 (2.54)

127 (3.51)

Missing

1726 (43.2)

150 (47.62)

1565 (43.24)

Nationality

Non Kuwaiti

2356 (58.97)

217 (68.89)

2103 (58.11)

Kuwaiti

1639 (41.03)

98 (31.11)

1516 (41.89)

Hypertension

778 (19.47)

138 (43.81)

628 (17.35)

Diabetes

730 (18.27)

130 (41.27)

591 (16.33)

CVD

194 (4.86)

54 (17.14)

134 (3.7)

CKD

72 (1.8)

20 (6.35)

49 (1.35)

COPD

17 (0.43)

4 (1.27)

12 (0.33)

Cancer

56 (1.4)

9 (2.86)

44 (1.22)

Asthma

235 (5.88)

31 (9.84)

200 (5.53)

Immunodeficiency

11 (0.28)

2 (0.63)

8 (0.22)

Immunosuppression

14 (0.35)

4 (1.27)

10 (0.28)

Admission date

24/02/20 to 11/05/20

3243 (81.18)

199 (63.17)

2998 (82.84)

12/05/20 to 27/05/20

752 (18.82)

116 (36.83)

621 (17.16)