Fig. 1From: Red blood cell indices and anaemia as causative factors for cognitive function deficits and for Alzheimer’s diseaseCognitive tests have a significant effect on red blood cell measures. a There is a significant association between red blood cell measures and the reaction time, reasoning, numeric and prospective cognitive function tests. b Increased MCH and related indices have a positive effect on verbal–numeric reasoning, prospective and numeric memory (red squares). Reaction time is increased as haemoglobin decreases due to inverse nature of the reaction time test (blue squares). See Abbreviations for blood indices’ acronymsBack to article page