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Table 3 Multilevel model analyses predicting mood: Fixed and random effects of time [h], time-squared [h2], sex, age [yrs], type of study, day, social and environmental context.

From: The context matters - not all prolonged sitting bouts are equally related to momentary affective states: an ambulatory assessment with sedentary-triggered E-diaries

Outcome   Fixed effects Random effects
  Predictor beta-coefficient Standard Error t-value (df) P-value R2 [%] Variance Estimate SD Wald-Z P-value
Model 1: Valence Intercept 4.3 0.17 25.19 (418) < 0.001   0.25 0.05 4.93 < 0.001
Time -0.05 0.014 -3.76 (1874) < 0.001 0.74 0.001 0.0003 3.44 0.001
Time-squared 0.003 0.001 3.8 (1614) < 0.001 0.92     
Length of bouts (30 min)a -0.04 0.09 -0.45 (259) 0.654 < 0.00     
Day (weekday)b 0.05 0.05 0.89 (149) 0.373 0.74 0.09 0.03 3.5 < 0.001
Age 0.01 0.005 2.14 (258) 0.034 0.72     
Sex (female)c 0.002 0.09 0.02 (249) 0.983 < 0.00     
Social context (not-alone)d 0.17 0.04 4.9 (160) < 0.001 1.06 0.03 0.01 2.62 < 0.001
Environmental context (leisure)e 0.33 0.05 6.4 (196) < 0.001 3.69 0.11 0.03 4.07 < 0.001
Model 2: Energetic arousal Intercept 3.64 0.2 18.43 (416) < 0.001   0.17 0.06 2.69 0.007
Time 0.04 0.02 2 (2248) 0.046 0.58 0.001 0.0005 3.67 < 0.001
Time-squared -0.003 0.001 -3.72 (1948) < 0.001 0.90     
Length of bouts (30 min)a -0.1 0.1 -0.99 (235) 0.326 0.08     
Day (weekday)b -0.16 0.07 -2.21 (197) 0.029 0.32 0.2 0.05 4.51 < 0.001
Age 0.02 0.01 4.65 (235) < 0.001 1.51     
Sex (female)c -0.3 0.1 -3.6 (211) 0.002 0.96     
Social context (not-alone)d 0.24 0.05 4.94 (155) < 0.001 0.22 0.08 0.03 3.06 0.002
Environmental context (leisure)e -0.22 0.06 -3.6 (211) < 0.001 1.37 0.13 0.04 3.63 < 0.001
Model 3: Calmness Intercept 4.29 0.16 27.29 (490) < 0.001   0.24 0.04 5.59 < 0.001
Time -0.06 0.01 -4.4 (3891) < 0.001 0.07     
Time-squared 0.003 0.001 4.5 (3863) < 0.001 0.14     
Length of bouts (30 min)a 0.18 0.08 2.23 (290) 0.026 0.67     
Day (weekday)b 0.08 0.05 1.64 (141) 0.104 0.35 0.06 0.02 2.78 0.005
Age 0.01 0.004 2.27 (274) 0.024 1.21     
Sex (female)c 0.03 0.08 0.36 (265) 0.719 < 0.00     
Social context (not-alone)d 0.06 0.04 1.69 (166) 0.093 0.18 0.39 0.01 2.79 0.005
Environmental context (leisure)e 0.27 0.05 5.32 (262) < 0.001 1.72 0.12 0.02 4.87 < 0.001