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Table 7 Reductions of the interquartile range (IQR) and median per-patient range of hour-to-hour percentage insulin sensitivity change over time

From: Variability of insulin sensitivity during the first 4 days of critical illness: implications for tight glycemic control

Variability analysis Cohort analysis Per-patient analysis
% Reduction of IQR p value % Decrease at median p value
Block 1–2 (0–6 vs. 6–12 hr) 40 0.0017 36 <0.0001
Block 2–3 (6–12 vs. 12–18 hr) 24 0.0628 28 0.0673
Block 3–4 (12–18 vs. 18–24 hr) 0 0.0931 9 0.1032
Block 4–5 (18–24 vs. 24–48 hr) 18 0.1682 14 0.1075
  1. P values calculated using Kolmogorov-Smirnov test for cohort comparisons and Wilcoxon rank-sum test for per-patient comparisons.