Acute renal injury incidence is growing in the elderly inpatients – a tertiary-level academic single centre observation over 5 consecutive years
Journal Title: Postępy Nauk Medycznych - Year 2013, Vol 26, Issue 2
Abstract
<b>Introduction.</b> Acute kidney injury (AKI) incidence in general population is difficult to evaluate, seems to increase in all age groups, but the published data are scarce. We hypothesized that the diagnosis of AKI would increase over time, especially in the elderly population.<br><b>Aim.</b> Primary – verify if the frequency of AKI diagnosis among nephrology service inpatients older than 65 years of age has been growing over time. Secondary – evaluate if the trend was similar among younger inpatient medical population, and what was the relative total impact of AKI among elderly on the demand for AKI services.<br><b>Method.</b> Retrospective study analysing single centre administrative data from hospital database.<br><b>Materials.</b> Medical diagnoses and age from electronic medical records.<br><b>Results.</b> Patients 65+ accounted for a stable fraction of 56-59% of hospitalized each year. In patients < 65 the incidence of AKI was stable within 8-11% (3-5% of all patients). In patients 65+, the AKI incidence increased from 17% to 25%, and accounted for 73-82% of all cases of AKI.<br><b>Conclusions.</b> Incidence of AKI diagnosis is increasing in elderly, but not in patients below the age of 65. The AKI in patients of 65+ accounted for 80% of all AKI cases in nephrological service, and that fraction has been growing steadily.
Authors and Affiliations
Marcin Czystowski, Dorota Daniewska, Ryszard Gellert
Keywords
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