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Table 2 Study outcome (intention-to-treat analysis)

From: Efficacy of quetiapine for delirium prevention in hospitalized older medical patients: a randomized double-blind controlled trial

Outcome Placebo Quetiapine OR or Difference (95% CI) P-value
Delirium incidence, n (%) 5 (8.8) 8 (14.0) OR = 1.698 (0.520–5.545) 0.381
Length of hospital stay (day), median (IQR) 5 (4, 8) 6 (4, 8) Difference = 0.0 (−1,0)* 0.133
Admission to participation day (day), median (IQR) 1 (1, 2) 1 (1, 2) Difference = 0.0 (0,0)* 0.838
Admission to delirium day, median (IQR) 2 (1.0,4.5) 3.5 (2.0,4.0) Difference = 0.0 (0,0)* 0.361
Delirium duration (day), median (IQR) 3 (1.5,4.0) 4 (2.3,6.5) Difference = 0.0 (0,0)* 0.557
Total participation (day), median (IQR) 2 (1, 4) 3 (1, 4) Difference = 0.0 (0,0)* 0.190
ICU admission, n (%) 3 (5.3) 3 (5.3) OR = 1.000 (0.193–5.177) 1.000
Rehospitalization within 90 days after discharge 23 (40.4) 24 (42.1) OR = 1.075 (0.510–2.267) 0.849
Mortality, n (%)
 At 30 days 2 (3.5) 1 (1.8) OR = 0.491 (0.043–5.573) 0.566
 At 90 days 9 (15.8) 7 (12.3) OR = 0.747 (0.258–2.164) 0.591
  1. OR Odds Ratios, CI Confidence Interval, P P-value, QIR Interquartile range, ICU Intensive Care Unit, *Differences between medians using Hodges-Lehmann estimator