Table 2: The linear relationships between weekday use of specific technologies at bedtime and weekday sleep duration (hours) in 632 contemporary UK adolescents

From: Exploring the complex pathways among specific types of technology, self-reported sleep duration and body mass index in UK adolescents

 Model 1Model 2Model 3
 Unst (s.e.) StUnst (s.e.) StUnst (s.e.) St
Computer use−0.59** (0.11) −0.21−0.63** (0.10) −0.22−0.39** (0.10) −0.14
Mobile telephone−0.60** (0.12) −0.19−0.38** (0.12) −0.12−0.28** (0.11) −0.09
TV viewing−0.45** (0.11) −0.16−0.62** (0.10) −0.22−0.35** (0.10) −0.12
Video gaming−0.27** (0.11) −0.10−0.71** (0.10) −0.26−0.39** (0.10) −0.15
  1. Abbreviations: St, standardised coefficient; s.e., standard error; Unst, unstandardised coefficient.
  2. Model 1: unadjusted.
  3. Model 2: adjusted for age, sex, ethnicity and school.
  4. Model 3: further adjusted for snacking, caffeine consumption, depression, method of travel to school, potential obstructive sleep apnoea (OSA), bedroom sharing, napping and body mass index (BMI) z-score.
  5. *P<0.05; **P<0.01.