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Table 1 Some epidemiological and clinical parameters among the ABO group

From: ABO groups can play a role in susceptibility and severity of COVID-19

  A+ (366) A− (15) B+ (18) AB+ (11) O+ (94)  
Age 54.5 ± 11 51.9 ± 4 52.1 ± 6 52 ± 9 54.7 ± 8 53.2 ± 7
Sex
Male 212 9 11 6 63 2
Female 154 6 7 5 31 1
BMI 25 ± 4 24.5 ± 5 24 ± 3 23 ± 7 24.1 ± 5 24.4 ± 6
Smoking history
Non 87 (23.7%) 4 (26.7%) 7 (38.9%) 4 (36.3%) 24 (25.5%) 1 (33.4%)
Mild 128 (34.9%) 5 (33.3%) 4 (22.3%) 3 (27.2%) 33 (35.1%) 1 (33.4%)
Moderate 90 (24.5%) 3 (20%) 4 (22.3%) 3 (27.2%) 21 (22.3%) 1 (33.3%)
Heavy 61 (16.7%) 3 (20%) 3 (16.7%) 1 (9.3%) 16 (17.1%)
Comorbidity
No comorbidity 57 (15.5%) 3 (20%) 3 (16.7%) 4 (36.3%) 41 (43.6%) 1 (33.3%)
HTN 202 (55.2%) 8 (53.4%) 6 (33.4%) 8 (72.7%) 20 (21.2%)
DM 198 (54%) 6 (40%) 5 (27.8%) 8 (72.7%) 22 (32.4%) 2 (66.7%)
IHD 119 (32.5%) 3 (20%) 2 (11%) 2 (18.1%) 15 (15.9%)
CVA 177 (48.3%) 2 (13.4%) 2 (11%) 4 (36.2%) 7 (7.4%)
Chronic chest disease 25 (6.8%) 1 (6.7%) 1 (9%) 12 (12.7%)
Bronchial asthma 17 (68%) 1 (100%) 8 (66.7)
Bronchiectasis 8 (32%) 1 (100%) 4 (33.3%)
Severity of COVID-19
Mild low risk 280 (76.5%) 6 (40%) 9 (50%) 3 (27.2%) 51 (54.2%) 2 (66.7%)
Mild at risk 18 (4.9%) 1 (6.7%) 2 (11.1%) 3 (27.2%) 23 (24.4%)
Moderate 30 (8.1%) 1 (6.7%) 3 (16.7%) 3 (27.2%) 10 (10.6%) 1 (33.3%)
Severe 12 (3.2%) 3 (20%) 1 (5.5%) 1 (9%) 5 (5.3%)
Critical 26 (7.1%) 4 (26.7%) 2 (11.1%) 1 (9%) 3 (3.1%)
MV 22 (5.9%) 2 (13.4%) 2 (11.1%) 1 (9%) 1 (1%)
Outcome
Died 16 (4.37%) 1 (5.5%) 1 (1%)
  1. BMI body mass index, HTN hypertension, DM diabetes mellitus, IHD ischemic heart diseases, CVA cerebro-vascular stroke, MV mechanical ventilation