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Table 5 Associations between stressors and sound level

From: Associations between stressors and difficulty sleeping in critically ill patients admitted to the intensive care unit: a cohort study

  Morning shift p value Afternoon shift p value Night shift p value Global ICU stay p value
Biological factors
 Anxiety symptoms
  Present 61.81 ± 2.53 0.283 62.07 ± 2.72 0.597 61.75 ± 4.56 0.737 61.87 ± 2.76 0.488
  Absent 62.55 ± 2.54 62.50 ± 3.09 62.15 ± 4.13 62.40 ± 3.00
 Pain
 Present 62.83 ± 1.67 0.269 62.98 ± 2.30 0.322 64.10 ± 4.49 0.025 63.30 ± 1.98 0.037
 Absent 62.19 ± 2.83 62.20 ± 3.89 61.43 ± 3.99 61.94 ± 3.09
Environmental factors
 Noise
  Present 62.22 ± 2.36 0.784 62.79 ± 2.00 0.411 62.62 ± 1.51 0.274 62.54 ± 1.49 0.459
  Absent 62.40 ± 2.75 62.18 ± 4.15 61.75 ± 5.03 62.11 ± 3.41
 Lights
  Present 62.04 ± 2.82 0.661 62.10 ± 2.09 0.646 62.40 ± 1.46 0.537 62.18 ± 1.70 0.886
  Absent 62.41 ± 2.58 62.45 ± 3.88 61.95 ± 4.67 62.27 ± 3.16
  1. The data are expressed as mean dB ± standard deviation, p values were obtained using Student’s t test