Fig. 1From: Remifentanil-induced alterations in neutrophil numbers after surgeryComparison of the postoperative numbers of leucocytes (black bar), neutrophils (gray bar) and lymphocytes (white bar) between the patients who received fentanyl-based anesthesia (n = 20) and those who received remifentanil-based anesthesia (n = 20). The leucocyte count (a: p = 0.03) and neutrophil count (b: p = 0.014) were significantly lower in patients who received remifentanil-based anesthesia than in those who received fentanyl-based anesthesia. Error bars represent the standard deviation. There was no significant difference in the number of lymphocytes between the two groups (c: p = 0.92)Back to article page