Figure 1: Survival rates for patients undergoing radiotherapy for cervical cancer – impact of haemoglobin levels prior to and during treatment.9 A haemoglobin level ≥120 g/L was defined as high (H), and a level <120 g/L was defined as low (L). H–H = high haemoglobin level at presentation that remained high during radiation. H–L = high haemoglobin level at presentation and low haemoglobin level during radiation. L–H = low haemoglobin level at presentation and high haemoglobin level during radiation. L–L = low haemoglobin level at presentation that remained low during radiation Reprinted from Grogan M, et al. Cancer 1999;86:1528–36, with permission from John Wiley and Sons.