GSTM1 and anemia (phenotype): The study found that in the region of 14–16% of people in the >65 years age group had anaemia, which is consistent with a systematic review of studies done in various settings in developed countries and is probably associated with chronic disease and inflammation.23 The current findings for this age group are also like those from a study with older primary care patients (>65 years) who had full blood counts in Oxfordshire in 2012–2013,10 not only for the prevalence of anaemia but also the degree of incompleteness of ferritin testing, and lack of follow-up for further Hb testing.