Table 4.

Relationship between bedtime at night and SBP in different models.

Exposure	Model I (β, 95%CI, P)	Model II (β, 95%CI, P)	Model III (β, 95%CI, P)
Bedtime
4.88 ± 1.76	−0.74 (−0.97, −0.51) <0.0001	−0.26 (−0.47, −0.05) 0.0155	−0.23 (−0.43, −0.02) 0.0292

SBP, systolic blood pressure. Model I was adjusted for: sleep duration, snore, trouble sleeping, snort or stop breathing, overly sleepy. Model II was adjusted for: gender, race, age in addition to model I. Model III was adjusted for: alcohol consumption, smoke, TPA, GFR, UA, TC, LDL, HDL, BMI, diabetes in addition to model II.