Association of serum magnesium levels with acute ischaemic stroke in patients with type 2 diabetes mellitus: a propensity score-matched case–control study
Abstract
Introduction Magnesium (Mg) deficiency has been found to be associated with many clinical conditions, such as type 2 diabetes mellitus (T2DM), cardiovascular diseases and likewise. Studies evaluating the association between serum Mg levels and ischaemic stroke in T2DM from India are limited, and this formed the aim of this study. Methods We conducted a case–control study among patients with T2DM where cases had a history of acute ischaemic stroke in the preceding 2 years and controls with no such history. Data regarding sociodemographic and clinical details and laboratory parameters, including serum Mg concentration, were collected using a semistructured questionnaire. Furthermore, propensity score matching (PSM) was done to match the controls with the cases. Results We enrolled a total of 200 participants (cases: 75 and controls: 125), but after PSM, 149 participants (cases: 75 and control:74) were analysed. The serum Mg concentrations were significantly low (p<0.001) among the cases (mean (SD)=1.74 (0.22)) when compared with the controls (mean (SD)=1.95 (0.13)). For every 0.1 mg/dL decrease in serum Mg concentration, the odds of ischaemic stroke increase by approximately 1.918 times (95% CI 1.272 to 2.890; p=0.002). Conclusions The mean Mg level in the ischaemic stroke group was significantly low compared with the no stroke group in patients with T2DM. We recommend further controlled studies to evaluate the role of Mg supplementation in the management of acute ischaemic…
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