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. 2021 Aug;53(8):1659-1663.
doi: 10.1007/s11255-020-02749-8. Epub 2021 Jan 1.

Time spent outside of the hospital, CKD progression, and mortality: a prospective cohort study

Lin Zhang  1 , Heng-Lan Wu  1 , Hai-Feng Yu  1 , Jun-Liang Zhou  2
Affiliations

Time spent outside of the hospital, CKD progression, and mortality: a prospective cohort study

Lin Zhang et al. Int Urol Nephrol. 2021 Aug.

Abstract

Purpose: Home time-being out of any healthcare facility-has been proposed as a patient-centered outcome. This novel measure has not been investigated in patients with chronic kidney disease (CKD). The aim of this study is to determine whether there was an association between home time and occurrence of end-stage renal disease (ESRD) or all-cause mortality during 1 year of follow-up.

Methods: We assembled a prospective cohort of patients with CKD not requiring dialysis at the Nephrology Center of First Affiliated Hospital of Jiaxing University between May 2014 and April 2017 and followed up for 1 year. Home time was calculated as the number of days spent out of a hospital, rehabilitation facility, or skilled nursing facility. Outcomes included progression to ESRD and all-cause mortality.

Results: Among 943 patients, 882 (93.5%) had complete follow-up through 1 year. Mean home time was 246.9 ± 126.7 days. In regression analysis, several patient characteristics were associated with significantly reduced home time, including diabetes mellitus, cardiovascular disease, and albuminuria. Home time was strongly correlated with time-to-event endpoints of ESRD (τ=0.324) and all-cause mortality (τ=0.785).

Conclusions: Home time is significantly reduced for patients with CKD not requiring dialysis and is highly correlated with traditional time-to-event endpoints. Home time serves as a novel, easily calculated, patient-centered outcome that may reflect effect of interventions on future CKD research.

Keywords: Chronic kidney disease; Home time; Mortality; Patient-centered outcome.

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