Although the average length of postoperative hospital stay seemed to be ∼1 day longer in the 2006–2008 cohort than the 2008–2010 ICS group, this difference did not reach statistical significance ( Table 1 ). 4.
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The sentences
The small difference in average Hb reduction between the ICS groups of 4.5 g/L failed to reach statistical significance.
The two ICS groups showed less of a reduction in Hb post-op compared with the control, which was highly significant.