Statistical analysis results in Table 2 showed that the median length of stay was significantly higher in anaemic patients compared to non-anaemic patients (6 days vs. 4 days, P < 0.001). As expected, allogenic blood transfusions were given to a significantly higher number of anaemic patients compared to non-anaemic patients (26.1% vs. 2.21%, P <0.001).

Table 2. Univariate analysis by anaemia