Table 2.
Relation between BMI and blood groups among participants.
| BMI classification | ABO blood group n = 1171 |
P value | ||||
|---|---|---|---|---|---|---|
| A n = 368 (31.4%) |
B n = 188 (16.1%) |
AB n = 76 (6.5%) |
O n = 539 (46.0%) |
|||
| Underweight (BMI < 18.5) | n = 86 (7.3%) | 22 (25.6%) | 11 (12.8%) | 6 (7%) | 47 (54.7%) | 0.55 |
| % within ABO blood group | 6.0% | 5.9% | 7.9% | 8.7% | ||
| % of all participants | 1.9% | 0.9% | 0.5% | 4.0% | ||
| Normal weight (BMI 18.50–24.99) | n = 407 (34.8%) | 137 (33.7%) | 64 (15.7%) | 23 (5.7%) | 183 (45.0%) | 0.51 |
| % within ABO blood group | 37.2% | 34.0% | 30.3% | 34.0% | ||
| % of all participants | 11.7% | 5.5% | 2.0% | 15.6% | ||
| Overweight (BMI 25–29.99) | n = 331 (28.3%) | 104 (31.4%) | 58 (17.5%) | 21 (6.3%) | 148 (44.7%) | 0.84 |
| % within ABO blood group | 28.3% | 30.9% | 27.6% | 27.5% | ||
| % of all participants | 8.9% | 5.0% | 1.8% | 12.6% | ||
| Class I obesity (BMI 30–34.99) | n = 199 (17%) | 57 (28.6%) | 37 (18.6%) | 17 (8.5%) | 88 (44.2%) | 0.11 |
| % within ABO blood group | 15.5% | 19.7% | 22.4% | 16.3% | ||
| % of all participants | 4.9% | 3.2% | 1.5% | 7.5% | ||
| Class II obesity (BMI 35–39.99) | n = 87 (7.4%) | 27 (31.0%) | 9 (10.3%) | 5 (5.7%) | 46 (52.9%) | 0.39 |
| % within ABO blood group | 7.3% | 4.8% | 6.6% | 8.5% | ||
| % of all participants | 2.3% | 0.8% | 0.4% | 3.9% | ||
| Class III obesity (BMI ≥ 40) | n = 61 (5.2%) | 21 (34.4%) | 9 (14.8%) | 4 (6.6%) | 27 (44.3%) | 0.77 |
| % within ABO blood group | 5.7% | 4.8% | 5.3% | 5.0% | ||
| % of all participants | 1.8% | 0.8% | 0.3% | 2.3% | ||