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Table 2 Day-to-day association of physical behaviours with sleep characteristics

From: Association of physical activity, sedentary behaviour, and daylight exposure with sleep in an ageing population: findings from the Whitehall accelerometer sub-study

 

Sleep onset (min)

Sleep duration (min)

Duration of sleep window (min)

Sleep efficiency (%)

Beta (95% CI)a

p

Beta (95% CI)a

p

Beta (95% CI)a

p

Beta (95% CI)a

p

Mean acceleration, per 10 mg

 Model 1

−3.43 (−4.14, − 2.73)

< 0.001

1.45 (0.66, 2.25)

< 0.001

2.05 (1.20, 2.90)

< 0.001

− 0.12 (− 0.21, − 0.03)

0.007

 Model 2

− 3.33 (− 4.04, − 2.62)

< 0.001

1.30 (0.51, 2.10)

0.001

1.90 (1.05, 2.76)

< 0.001

− 0.13 (− 0.22, − 0.04)

0.004

 Model 3

− 3.27 (− 3.99, − 2.56)

< 0.001

1.10 (0.30, 1.90)

0.007

1.91 (1.05, 2.76)

< 0.001

− 0.17 (− 0.26, − 0.08)

< 0.001

% waking window in SB, per 10% increase

 Model 1

5.28 (4.48, 6.08)

< 0.001

− 2.17 (− 3.07, − 1.28)

< 0.001

− 3.00 (− 3.96, − 2.05)

< 0.001

0.16 (0.06, 0.26)

0.002

 Model 2

5.16 (4.36, 5.96)

< 0.001

− 1.98 (− 2.88, − 1.09)

< 0.001

− 2.79 (− 3.75, − 1.84)

< 0.001

0.17 (0.07, 0.27)

0.001

 Model 3

5.12 (4.31, 5.92)

< 0.001

− 1.76 (− 2.66, − 0.86)

< 0.001

− 2.81 (− 3.77, − 1.85)

< 0.001

0.21 (0.11, 0.31)

< 0.001

% waking window in LIPA, per 10% increase

 Model 1

−6.86 (− 7.88, − 5.84)

< 0.001

2.45 (1.31, 3.60)

< 0.001

3.86 (2.64, 5.08)

< 0.001

− 0.25 (− 0.38, − 0.12)

< 0.001

 Model 2

−6.74 (− 7.76, − 5.72)

< 0.001

2.24 (1.09, 3.38)

< 0.001

3.60 (2.38, 4.82)

< 0.001

− 0.25 (− 0.38, − 0.12)

< 0.001

 Model 3

−6.69 (− 7.71, − 5.67)

< 0.001

2.02 (0.87, 3.17)

< 0.001

3.60 (2.37, 4.82)

< 0.001

− 0.29 (− 0.42, − 0.16)

< 0.001

% waking window in MVPA, per 10% increase

 Model 1

−4.49 (− 6.15, − 2.84)

< 0.001

2.91 (1.04, 4.78)

0.002

2.88 (0.88, 4.88)

0.005

− 0.04 (− 0.25, 0.17)

0.738

 Model 2

−4.29 (− 5.94, − 2.64)

< 0.001

2.66 (0.80, 4.53)

0.005

2.64 (0.64, 4.64)

0.010

−0.05 (− 0.26, 0.16)

0.628

 Model 3

−4.15 (−5.81, − 2.49)

< 0.001

2.23 (0.36, 4.11)

0.019

2.64 (0.63, 4.65)

0.010

−0.12 (− 0.33, 0.09)

0.249

Timing of the most 5 active hours, per 3-hour increase

 Model 1

4.77 (4.13, 5.41)

< 0.001

−2.72 (− 3.46, − 1.98)

< 0.001

−3.19 (− 3.99, − 2.39)

< 0.001

0.02 (− 0.06, 0.10)

0.610

 Model 2

4.78 (4.14, 5.42)

< 0.001

− 2.72 (− 3.45, − 1.98)

< 0.001

−3.18 (− 3.99, − 2.38)

< 0.001

0.02 (− 0.06, 0.10)

0.612

 Model 3

4.79 (4.15, 5.43)

< 0.001

− 2.73 (− 3.47, − 1.99)

< 0.001

− 3.19 (− 3.99, − 2.39)

< 0.001

0.02 (− 0.06, 0.10)

0.644

  1. SB sedentary behaviour, LIPA light-intensity physical activity, MVPA moderate-to-vigorous physical activity, CI confidence interval
  2. aEstimated using linear mixed-effects regressions
  3. Model 1 adjusted for sociodemographic factors, season of wear, and day type (week-end vs week day)
  4. Model 2 additionally adjusted for behavioural factors
  5. Model 3 additionally adjusted for body mass index, use of sleep medication, number of chronic conditions