Patients with moderate or high (at least Grade 2) hemoglobin levels differed from patients without significantly reduced hemoglobin levels, with a highly significant effect in the PILLAR study and a moderate, non-significant effect in the ASPIRE study.
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The sentences
The differences between groups in both studies failed to reach statistical significance using parametric testing, although statistical significance was achieved using the Wilcoxon rank-sum test in the PILLAR study (p < 0.05).