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Table 3 Independent Associations of Short Physical Performance Battery Impairment with Kidney Transplant Length of Stay, Baltimore, Maryland, 2009–2016

From: Pre-kidney transplant lower extremity impairment and transplant length of stay: a time-to-discharge analysis of a prospective cohort study

Modela Association between SPPB and LOS
Conventional Generalized Gamma (Time-to-Discharge) Relative Time (95% CI)  
Impaired Vs. Unimpairedb 1.13 (1.05, 1.21)
Logistic Regression Odds Ratio (95% CI)  
(LOS ≥14 Days) Impaired Vs. Unimpaired 1.90 (1.23, 2.94)
  One-point decrease in SPPB composite score 1.16 (1.08, 1.27)
  1. Abbreviations: CI Confidence Interval, LOS Length of Stay, SE Standard Error, SPPB Short Physical Performance Battery
  2. aAdjusted for age, sex, race, body mass index, years on dialysis, cause of end-stage renal disease, and donor type. GG model parameters were β = 1.87, σ = 0.41, κ = −0.56 and β = 1.75, σ = 0.41, κ = −0.56 for the impaired and unimpaired recipients, respectively. Parameters for the GG model define the shape of the curve; β (a location parameter that is related to median time to discharge), σ (a dispersion or scale parameter related to the interquartile ratio: third quartile divided by the first quartile of lengths of stay), and κ (shape)
  3. bSPPB impairment was defined as an SPPB score ≤ 10