Table 3.
Association of platelet counts with Helicobacter pylori infection according to traditional cut-offs for thrombocytosis and thrombocytopenia in school children, Ethiopia. Multivariate multinomial regression analysis
| Platelet count classification* | ||||
| H. pylori status | Low platelet count<150×109 platelets/L | High platelet count>450×109 platelets/L | ||
| Crude OR (95% CI) | Adjusted OR† (95% CI) | Crude OR (95% CI) | Adjusted OR† (95% CI) | |
| H. pylori-positive | 1.53 (0.65 to 3.59) | 1.26 (0.53 to 3.01)‡ | 0.77 (0.46 to 1.30) | 0.70 (0.41 to 1.21)‡ |
| H. pylori-negative | 1 | 1 | 1 | 1 |
*Platelet counts were categorised to form polytomous outcome variable as either low, high or normal using the cut-offs as described by the British Journal of Haematology for multinomial regression analysis. Normal platelet counts (150–450 platelets109/L) was used as a reference category in multinomial regression.
†Adjusted for sex, age, haemoglobin and WBC.
‡P>0.05.
WBC, white blood cell.