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Acute kidney injury (AKI) severity. (a) Distribution of AKI stage by age. Relationship between AKI severity and social deprivation measured by Welsh Index of Multiple Deprivation (WIMD) percentile (b) for the whole cohort, (c) for patients younger than 60 years (d) and patients older than 60 years (d). Severity of AKI was assessed by the percentage presenting with AKI stages 2 and 3. Percentile 1 is the most deprived and percentile 100 is the least deprived. CI, confidence interval.
