Statistical analyses
Statistical analyses were performed using SPSS version 23.0. Continuous variables were expressed as medians and ranges, and categorical variables were expressed as numbers and percentages. For continuous variables, Student’s t-tests were used to compare differences between groups if the variables were normally distributed, and Mann-Whitney U tests were used when they were non-normally distributed. The chi-squared test or Fisher’s exact test was used for categorical variables. The first blood culture initiation date was subtracted from the last follow-up date to calculate the observation time, expressed in days. Uni-variate and multi-variate logistic regression models were used to assess the risk factors for the emergence of BSI, producing odds ratios (OR) and 95.0% confidence intervals (CI). Cox proportional hazards regression was used to assess the risk factors for 30-day mortality of HM patients with BSIs, generating hazard ratios (HR) and 95.0% confidence intervals. P-values were 2-sided, and a p value <0.05 was considered to be statistically significant.