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. 2021 Dec 23;8:798571. doi: 10.3389/fmed.2021.798571

Table 4.

Association between baseline characteristics and ACE1 polymorphism with hypoxic vs. non-hypoxic hospitalized COVID-19 cases.

Not hypoxic
N = 26
Hypoxic
N = 62
P -Valuea
Age (years) Mean ± SD 52.08 ± 14.38 57.13 ± 15.24 0.146
BMIb (kg/m2) Mean ± SD 27.27 ± 4.35 31.12 ± 6.15 0.001
Sex Female N (%) 9 (34.6) 18 (29.0) 0.391
Male N (%) 17 (65.4) 44 (71.0)
Blood group A+ Yes N (%) 11 (42.3) 32 (51.6) 0.287
No N (%) 15 (57.7) 30 (48.4)
Smoking Ever N (%) 11 (42.3) 25 (40.3) 0.523
Never N (%) 15 (57.7) 37 (59.7)
Dyslipidemia Yes N (%) 4 (15.4) 21 (33.9) 0.064
No N (%) 22 (84.6) 41 (66.1)
Hypertension Yes N (%) 7 (26.9) 29 (46.8) 0.067
No N (%) 19 (73.1) 33 (53.2)
Diabetes Yes N (%) 6 (23.1) 19 (30.6) 0.328
No N (%) 20 (76.9) 43 (69.4)
Heart diseasec Yes N (%) 5 (15.4) 10 (16.1) 0.603
No N (%) 22 (84.6) 52 (83.9)
Kidney diseased Yes N (%) 3 (11.5) 4 (6.5) 0.339
No N (%) 23 (88.5) 58 (93.5)
Lung diseasee Yes N (%) 3 (11.5) 3 (4.8) 0.242
No N (%) 23 (88.5) 59 (95.2)
Cerebrovascular diseasef Yes N (%) 0 (0.0) 2 (3.2) 0.494
No N (%) 26 (100.0) 60 (96.8)
Coagulation disordersg Yes N (%) 0 (0.0) 4 (6.5) 0.239
No N (%) 26 (100.0) 58 (93.5)
Cancer Yes N (%) 9 (34.6) 11 (17.7) 0.077
No N (%) 17 (65.4) 51 (82.3)
ACEIh/ARBi Yes N (%) 3 (11.5) 15 (24.2) 0.145
No N (%) 23 (88.5) 47 (75.8)
ACE genotype II N (%) 6 (23.1) 5 (8.1) 0.171
DI N (%) 10 (38.5) 27 (43.5)
DD N (%) 10 (38.5) 30 (48.4)
II N (%) 6 (23.1) 5 (8.1) 0.060
DI + DD N (%) 20 (76.9) 57 (91.9)
DI + II N (%) 16 (61.5) 32 (51.6) 0.269
DD N (%) 10 (38.5) 30 (48.4)
ACE allele I N (%) 22 (42.3) 37 (29.8) 0.078
D N (%) 30 (57.7) 87 (70.2)
a

P-values defined using independent t-test for continuous variables and Fisher exact for categorical variables.

b

Body mass index.

c

Coronary artery disease; heart failure.

d

Chronic kidney disease, end-stage renal disease.

e

Chronic obstructive pulmonary disease, interstitial lung disease, asthma.

f

Stroke, carotid stenosis.

g

Hemophilia, von Willebrand disease.

h

Angiotensin converting enzyme inhibitor.

i

Angiotensin receptor blocker.

The statistically significant P values are in bold.