Fig. 2
ROC curves for the model of basophils combined with lymphocytes and platelet-to-lymphocytes ratio (PLR) respectively in predicting positive Covid tests in patients with symptoms (A)&(B). A n = 356, AUCmodel = 0.802 (95% CI, 0.757–0.843); AUCbasophils = 0.760 (95% CI, 0.713–0.804; P = 0.0075, compared with the model); AUClymphocytes = 0.766 (95% CI, 0.718–0.809; P = 0.8511 and = 0.0128, compared with basophils alone and the model respectively). B n = 356, AUCmodel = 0.804 (95% CI, 0.759–0.844); AUCbasophils = 0.760 (95% CI, 0.713–0.804; P = 0.0036, compared with the model); AUCPLR = 0.696 (95% CI, 0.645–0.743; P = 0.0527 and < 0.0001, compared with basophils alone and the model respectively)