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Table 5 Subjective sleep quality and anxiety in simulated ICU noise and light night for different conditions

From: Effect of oral melatonin and wearing earplugs and eye masks on nocturnal sleep in healthy subjects in a simulated intensive care unit environment: which might be a more promising strategy for ICU sleep deprivation?

  NL NLP NLEE NLM ANOVA Contrast 1 Contrast 2 Contrast 3
      P P P P
State anxiety 46.0 ± 8.8 45.2 ± 7.7 33.5 ± 5.0 28.8 ± 3.3 0.000 0.000 0.000 0.118
Sleep quality 6.1 ± 1.0 4.3 ± 1.3 3.4 ± 0.8 2.2 ± 0.8 0.000 0.000 0.000 0.010
  1. NL: simulated ICU noise and light; NLP: NL plus placebo; NLM: NL plus melatonin; NLEE: NL plus use of earplugs and eye masks; Contrast 1: NL vs. NLEE; Contrast 2: NLP vs. NLM; Contrast 3: NLEE vs. NLM.