Table 2 Associations of sleep EEG coherence in the non-rapid eye movement (NREM) sleep delta band with age, sex, frequency of breastfeeding and the familial factors regarding infant sleep habits (sleeping arrangement and bedtime routine), caregivers’ principles regarding structure and regularity of their infant’s sleep (structure and attunement), and caregivers’ anxiety regarding their infant’s sleep (maternal cognitions).
Factor | Delta coherence | |||||||
|---|---|---|---|---|---|---|---|---|
Left frontal | Central frontal | Right frontal | Left to central frontal | Right to central frontal | Central | Left temporal | Occipital | |
β (p) | β (p) | β (p) | β (p) | β (p) | β (p) | β (p) | β (p) | |
Age | – | – | – | – | – | – | – | – |
Sex | 0.032 (0.007) | – | 0.013 (0.114) | – | – | – | – | – |
Breastfeeding | – | – | – | – | – | – | – | – |
Sleeping arrangement | ||||||||
Own bed in own room | – | 0.012 (0.584) | – | 0.015 (0.234) | – | 0.037 (0.347) | – | – |
Own bed in parents’ room | – | 0.038 (0.074) | – | 0.037 (0.003) | – | 0.043 (0.238) | – | – |
Parents’ bed | – | 0.049 (0.103) | – | 0.043 (0.010) | – | 0.084 (0.100) | – | – |
Own bed in sibling’s room | – | 0.028 (0.535) | – | 0.022 (0.362) | – | 0.211 (0.011) | – | – |
Bedtime routine | – | – | – | – | – | – | – | – |
Structure | – | – | 0.026 (0.103) | – | – | – | – | – |
Attunement | − 0.037 (0.129) | – | 0.037 (0.036) | – | – | – | – | – |
Maternal cognitions | – | − 0.001 (0.437) | – | – | – | – | – | − 0.002 (0.007) |
McFadden’s R2 | 0.27 | 0.27 | 0.37 | 0.39 | 0 | 0.28 | 0 | 0.25 |
