SPSS Dataset for the AKI study KCMC 2023 - 2024 Moshi Kilimanjaro

INTRODUCTION: Kidney function recovery (KFR) within 90 days is a key objective in acute kidney injury management. Prior studies described KFR at 7, 30, 60 and 90 days but used varied definitions, mainly crude rates, resulting in non-standardized measures. Because KFR probabilities decline predictably and reflect both magnitude and timing, we used them together with median KFR time to define 90-day KFR trajectories and compare AKI subgroups. METHODS: In this descriptive prospective cohort at Kilimanjaro Christian Medical Centre (Sept 2023–Feb 2025), consecutively enrolled AKI patients were followed for 90 days. KFR was defined as serum creatinine <1.5× baseline. Kaplan–Meier estimates generated KFR probabilities at 7, 30, 60 and 90 days and median KFR times. KFR trajectories were described using these probabilities plus the median time, with the all-cause trajectory as reference. RESULTS: Of 1,211 admissions, 139 met criteria and 129 completed follow-up. All-cause KFR probabilities declined from 79.6% (7 days) to 34.8%, 14.7% and 8.8% at 30, 60 and 90 days, with median KFR time 21 days. Favorable trajectories occurred in; Hospital-acquired AKI: 100%, 71.4%, 53.6%, 35.7%; median 68 days (p=0.012), KDIGO stage 3: 93.5%, 52.1%, 18.9%, 14.2%; median 31 days (p=0.035) and Sepsis: 87.5%, 46.7%, 25.7%, 18.4%; median 27 days (p=0.004). Volume-depletion AKI had an unfavorable trajectory (74.2%, 27.0%, 0%, 0%; median 12 days (p=0.008). CONCLUSION: KFR trajectories showed consistent decline, and longer median KFR times aligned with better recovery. Hospital-acquired AKI, KDIGO stage 3 and sepsis showed favorable trajectories, while volume-depletion AKI had the poorest recovery.