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Table 3 Results of multivariate regression analysis of irregular bedtime frequency and average daily sleep time on PSQI, ESS, and FSS scores

From: Effects of an irregular bedtime schedule on sleep quality, daytime sleepiness, and fatigue among university students in Taiwan

  ESS FSS PSQI
Intermediate FIB (p-value) (0.389) (0.132) (0.02*)
Zero-order r -0.05 0.05 0.05
Partial r 0.07 0.12 0.18
High FIB (p-value) (0.015*) (0.124) (0.05*)
Zero-order r 0.18 0.09 0.20
Partial r 0.19 0.12 0.15
ADST (p-value) (0.314) (0.359) (<0.001*)
Zero-order r 0.02 -0.11 -0.59
Partial r 0.08 -0.07 0.56
Total r (p-value) 0.20 0.17 0.61
  (0.09) (0.196) (<0.001*)
  1. FIB, frequency of irregular bedtime; ADST, average daily sleep time; ESS, Epworth Sleepiness Scale; FSS, Fatigue Severity Scale; PSQI, Pittsburgh Sleep Quality Index; r, correlation coefficients.
  2. The multivariate regression analysis was performed by setting the intermediate and high FIB groups as dummy variables in comparison to the low FIB group
  3. *p < 0.05
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