From: Association of ABO blood groups with Chikungunya virus
Blood Group | Age group | Status of Chikungunya | Total | |
---|---|---|---|---|
 |  | ABSENCE | PRESENCE |  |
O | 5-30 | 48 | 22 | 70 |
Chi-square = 12.802* | 30-55 | 32 | 26 | 58 |
p = 0.002 | 55-80 | 12 | 22 | 34 |
 | Total | 92 (56.8%) | 70 (43.2%) | 162 (100.0%) |
A | 5-30 | 219 | 80 | 299 |
Chi-square = 25.631* | 30-55 | 74 | 57 | 131 |
p = 0.000 | 55-80 | 26 | 27 | 53 |
 | Total | 319 (66.0%) | 164 (34.0%) | 483 (100%) |
B | 5-30 | 149 | 46 | 195 |
Chi-square = 19.066* | 30-55 | 49 | 41 | 90 |
p = 0.000 | 55-80 | 16 | 23 | 39 |
 | Total | 214 (66.0%) | 110 (34.0%) | 324 (100%) |
AB | 5-30 | 276 | 104 | 380 |
Chi-square = 10.424* | 30-55 | 64 | 45 | 109 |
p = 0.005 | 55-80 | 22 | 20 | 42 |
 | Total | 362 (68.2%) | 169 (31.8%) | 531 (100%) |