Table 2.
Relationship between the ABO blood group distribution and clinical characteristics in patients with COVID-19 pneumonia [n (%)].
| Factor | ABO blood group |
χ2 | P | |||
|---|---|---|---|---|---|---|
| A | B | O | AB | |||
| Age | ||||||
| <40 | 22(31.88) | 25(39.68) | 14(34.15) | 8(57.14) | 3.553 | 0.314 |
| ≥40 | 47(68.12) | 38(60.32) | 27(65.85) | 6(42.86) | ||
| Gender | ||||||
| Male | 35(50.72) | 33(52.38) | 22(53.66) | 7(50.00) | 0.115 | 0.990 |
| Female | 34(49.28) | 30(47.62) | 19(46.34) | 7(50.00) | ||
| Fever | ||||||
| Yes | 59(85.51) | 48(76.19) | 22(53.66) | 8(57.14) | 15.460 | 0.002* |
| No | 10(14.49) | 15(23.81) | 19(46.34) | 6(28.56) | ||
| Cough | ||||||
| Yes | 49(71.01) | 36(57.14) | 18(43.90) | 10(71.43) | 8.909 | 0.031* |
| No | 20(28.99) | 27(42.86) | 23(56.10) | 4(28.57) | ||
| Sputum production | ||||||
| Yes | 17(24.64) | 14(22.22) | 17(41.46) | 5(35.71) | 5.478 | 0.140 |
| No | 52(75.36) | 49(77.78) | 24(58.54) | 9(64.29) | ||
| Dyspnoea | ||||||
| Yes | 29(42.03) | 10(15.87) | 13(31.71) | 7(50.00) | 12.890 | 0.005* |
| No | 40(57.97) | 53(84.13) | 28(68.29) | 7(50.00) | ||
| Myalgia or fatigue | ||||||
| Yes | 14(20.29) | 7(11.11) | 3(7.32) | 3(21.43) | 4.714 | 0.194 |
| No | 55(79.71) | 56(88.89) | 38(92.68) | 11(78.57) | ||
| Headache | ||||||
| Yes | 13(18.84) | 16(25.40) | 4(9.75) | 2(14.29) | 4.193 | 0.241 |
| No | 56(81.16) | 47(74.60) | 37(90.24) | 12(85.71) | ||
| Sore throat | ||||||
| Yes | 23(33.33) | 5(7.94) | 12(29.27) | 3(21.43) | 13.160 | 0.004* |
| No | 46(66.67) | 58(92.06) | 29(70.73) | 11(78.57) | ||
| Chest pain or chest distress | ||||||
| Yes | 11(15.94) | 9(14.29) | 3(7.32) | 5(35.71) | 6.693 | 0.082 |
| No | 58(84.06) | 54(85.71) | 38(92.68) | 9(64.29) | ||
| Fatigue | ||||||
| Yes | 42(60.87) | 30(47.62) | 23(56.10) | 2(14.29) | 10.910 | 0.012* |
| No | 27(39.13) | 33(52.38) | 18(43.90) | 12(85.71) | ||
| chronic underlying diseases | ||||||
| Yes | 33(47.83) | 22(34.92) | 18(43.90) | 5(35.71) | 2.544 | 0.467 |
| No | 36(52.17) | 41(65.08) | 23(56.10) | 9(64.29) | ||
Data are n (%) unless specified otherwise. COVID-19 = Coronavirus disease 2019.
*
Means the result have statistically significance.