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Table 3 Mixed-model results, including treatment estimate, effect size and significance level

From: Home-based light therapy for fatigue following acquired brain injury: a pilot randomized controlled trial

Outcome n M/SE Treatment effect estimate (95% CI) t stat Effect size (d) p value
BFI 24 4.88 (0.43) -0.39 (-1.16, 0.39) -0.97 -0.42 .33
ESS 24 7.00 (0.80) 0.59 (-0.83, 2.01) 0.82 0.35 .41
FSS 24 5.12 (0.25) -0.29 (-0.73, 0.15) -1.29 -0.55 .20
HADS (Depression) 24 6.42 (0.78) -0.69 (-1.95, 0.58) -1.07 -0.45 .29
ISI 24 11.08 (1.12) -2.06 (-3.99, -0.14) -2.06 -0.89 .036
PSQI 24 6.83 (0.74) -0.97 (-1.62, -0.32) -2.92 -1.24 .004
Mean RT 18 300.22 (7.10) -28.36 (-47.48, -9.23) -2.91 -1.75 .004
Fastest 10% RT 18 234.20 (4.98) -15.10 (-25.03, -5.16) -2.98 -2.98 .003
POPS 24 -0.34 (0.10) -0.07 (-0.21, 0.06) -1.04 -0.32 .30
Activity Diary 15 90.54 (2.06) 2.95 (0.91, 4.98) 2.83 1.63 .005
Sleep onset 19 22.95 (0.34) -0.12 (-0.80, 0.57) -0.34 -0.17 .74
Sleep offset 19 29.86 (0.53) 0.39 (-0.70, 1.47) 0.79 0.36 .48
Sleep onset latency (SOL) 19 18.46 (2.78) 0.47 (-4.75, 5.69) 0.18 0.10 .86
Wake after sleep onset (WASO) 19 46.51 (5.97) -0.54 (-10.73, 9.65) -0.10 -0.05 .92
Total sleep time (TST) 19 400.23 (17.98) -12.87 (-42.22, 16.47) -0.86 -0.49 .39
Sleep efficiency 19 82.23 (1.72) -0.34 (-3.83, 3.16) -0.19 -0.09 .85
  1. Notes. M/SE calculated from end Treatment assessment
  2. Abbreviations: BFI Brief Fatigue Inventory, ESS Epworth Sleepiness Scale, FSS Fatigue Severity Scale, HADS Hospital Anxiety and Depression Scale, ISI Insomnia Severity Index, POPS Participation Objective Participation Subjective (Objective Subscale only), PSQI Pittsburgh Sleep Quality Index, PVT Psychomotor Vigilance Task, SOL Sleep onset latency, TST Total sleep time, WASO Wake after sleep onset