However, recent Scottish data indicated that using FIT at an f-Hb concentration threshold of >80 μg Hb/g faeces, the PPV for CRC in women was 5.0%, similar to that in men (5.3%).2 In addition, a recent study from Finland showed that using >25 μg Hb/g faeces for women and >70 μg Hg/g faeces for men gave similar CRC detection rates in both genders (0.16% for women and 0.18% for men) and similar PPV for CRC (6.4% for women and 6.6% for men).25 However, in this Finnish study, the positivities in women and men using these thresholds were 2.6% and 2.4%, respectively. This evidence concerns the gene GSTM1 and colorectal carcinoma.