Impact of urinary tract infection requiring hospital admission on short-term, mid-term and long-term renal outcomes in adult CKD patients - A potentially modifiable factor for CKD progression
Abstract
BACKGROUND
Urinary tract infection (UTI) or acute pyelonephritis can lead to renal scarring and impact the subsequent renal function progression. The aims of this study were to investigate the changes in renal function related to UTI requiring hospital admission (UTI/HA) and the association between UTI/HA and long-term renal outcomes in patients with chronic kidney disease (CKD).
METHODS
This was a multicenter, retrospective observational study. Renal events and renal function before and after UTI/HA in CKD patients were analyzed for short-term and mid-term renal outcomes. A case-control study with multivariate logistic regression analysis was used to investigate the association between clinical characteristics and risk of long-term renal outcomes (kidney replacement therapy or death, KRT/death) in adult CKD patients.
RESULTS
This study included 1062 adult CKD patients, with 340 KRT and 76 deaths identified during a median follow-up of 105 months. Among 174 patients with UTI/HA, 59 (33.9 %) had bacteremia, 90 (51.7 %) acute kidney injury (AKI), and one in-hospital mortality. There was a faster decline rate of estimated glomerular filtration rate (eGFR) after UTI/HA compared to the pre-UTI/HA period [median (IQR) 0.37 (0.17-0.72) versus 0.19 (0.06-0.36) ml/min/1.73 m2 per month, P < 0.0001]. The incidence of UTI/HA was similar between the KRT/death and the CKD non-dialysis groups. Multivariate logistic regression analysis showed that baseline eGFR, baseline eGFR decline rate…
How strong is the evidence?
Evidence Hub reads this as a case-control, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 1,062 participants or records.
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