Logistic regression relating significant bacteraemia to full blood count
| Culture negative (n = 6652) | Culture positive (n = 530) | Univariate | Multivariate | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | OR | 95% CI | Wald | p Value | OR | 95% CI | Wald | p Value | ||
| Univariate and multivariate logistic regression of admission peripheral blood count with blood culture positivity. Wald refers to the Wald statistic. | |||||||||||||
| CI, confidence interval; OR, odds ratio; WBC, white blood cell count. | |||||||||||||
| Age | 64.3 | 21.5 | 68.4 | 19.8 | 1.01 | (1.01 to 1.01) | 18 | <0.001 | 1.00 | (1.00 to 1.01) | 1.8 | 0.17 | |
| WBC (×109/l) | 11.3 | 7.4 | 14.2 | 8.9 | 1.04 | (1.02 to 1.05) | 39 | <0.001 | Not entered | ||||
| Lymphocytes (×109/l) | 1.30 | 0.90 | 0.85 | 0.72 | 0.35 | (0.29 to 0.41) | 140 | <0.001 | 0.3 | (0.24 to 0.37) | 114 | <0.001 | |
| Neutrophils (×109/l) | 8.9 | 5.2 | 12.4 | 8.4 | 1.09 | (1.07 to 1.10) | 165 | <0.001 | 1.12 | (1.06 to 1.15) | 95 | <0.001 | |
| Neutrophil–lymphocyte interaction | 2.4 | 6.9 | 6.9 | 12.5 | 1.07 | (1.06 to 1.08) | 165 | <0.001 | 0.97 | (0.95 to 0.98) | 15 | <0.001 | |