Table 4 Results from Multilevel Models of Nighttime Sleep Onset Predicting Minutes in Next-day Physical Activity (MVPA, Sedentary).

From: Bidirectional, Daily Temporal Associations between Sleep and Physical Activity in Adolescents

  MVPA minutes Sedentary minutes
B (SE) B (SE)
Intercept 36.99 (33.37) 258.11 (122.56)*
Sex, Male (ref Female) 8.00 (2.44)** −36.50 (8.96)***
Age 0.33 (2.15) 9.90 (7.89)
Race, White, non-Hispanic (ref)
Black, non-Hispanic 5.73 (3.75) −8.67 (13.78)
Hispanic −2.26 (4.03) 20.35 (14.80)
Other −0.69 (4.44) 16.71 (16.32)
Mother’s Education, Less than High School (ref)
High School or Equivalent −4.31 (3.99) 5.29 (14.67)
Some College/Technical School −6.42 (3.58) 16.66 (13.17)
College or Graduate School −7.65 (4.90) 16.08 (17.99)
Family Structure, Biomother + Biofather (ref)
Other Living Arrangements 7.62 (4.47) −8.66 (16.46)
Biomother + New Partner 5.35 (3.38) −16.68 (12.40)
Biomother Only 3.13 (3.20) −4.46 (11.76)
Income to Poverty Threshold, >=300% (ref)
<49% 5.70 (4.57) −42.65 (16.80)*
50–99% 0.28 (4.10) −21.07 (15.08)
100–199% −2.44 (3.53) −10.92 (12.96)
200–299% −3.96 (4.00) 7.85 (14.73)
BMI 0.08 (0.05) 0.01 (0.18)
Weekend (ref Weekday) −21.22 (1.35)*** −12.75 (4.24)**
Midnight-centered Sleep Onset (between-person) −2.99 (0.92)** 11.46 (3.39)***
Midnight-centered Sleep Onset (within-person) −0.39 (0.42) −9.54 (1.31)***
  1. Note. 2,571 daily observations were clustered within 417 adolescents. Results express the between- and within- relationship of midnight-centered sleep onset (in hours) and daytime MVPA and sedentary minutes while adjusting for covariates. Note. MVPA is moderate-to-vigorous physical activity. Biomother, Biofather = Biological Mother and Biological Father. BMI is body mass index.
  2. *p < 0.05, **p < 0.01, ***p < 0.001.