Table 6.
Unstandardized coefficients from multilevel effects of daily steps on lagged (next-day) mood (N=75)a.
Outcome | Model 1b: next-day mood | Model 2c: next-day mood | Model 3d: next-day mood | ||||||||
|
β | SE | P value | β | SE | P value | β | SE | P value | ||
Intercept | 1.89 | 1.42 | .19 | 1.99 | 1.43 | .17 | 1.90 | 1.42 | .19 | ||
Prior-day steps | .04 | 0.02 | .01 | –.08 | 0.06 | .14 | –.005 | 0.01 | .97 | ||
Prior-day mood | .30 | 0.03 | <.001 | .30 | 0.03 | <.001 | .30 | 0.03 | <.001 | ||
Age (years) | .04 | 0.02 | .05 | .04 | 0.02 | .05 | .04 | 0.02 | .06 | ||
Sex | –.42 | 0.30 | .17 | –.44 | 0.30 | .15 | –.42 | 0.30 | .17 | ||
Condition | –.44 | 0.27 | .11 | –.44 | 0.28 | .12 | –.44 | 0.28 | .11 | ||
Education | .03 | 0.05 | .58 | .03 | 0.05 | .61 | .03 | 0.05 | .58 | ||
Health | .02 | 0.01 | .04 | .02 | 0.01 | .04 | .02 | 0.01 | .04 | ||
Average steps | –.05 | 0.06 | .38 | –.06 | 0.06 | .37 | –.05 | 0.06 | .38 | ||
Prior-day steps×sex | —e | — | — | .08 | 0.03 | .02 | —e | — | — | ||
Prior-day steps×age | —e | — | — | —e | — | — | .0007 | 0.002 | .71 |
aDaily steps were rescaled by dividing the number of steps by 1000; therefore, the β value reflects change in mood per 1000-step increase.
bModel 1: level 1 variance=1.20 (SD 1.10); level 2 variance=1.48 (SD 1.22). Akaike information criterion=4042.8; Bayesian information criterion=4098.7; log likelihood=–2010.4.
cModel 2: level 1 variance=1.22 (SD 1.10); level 2 variance=1.47 (SD 1.21). Akaike information criterion=4039.5; Bayesian information criterion=4100.4; log likelihood=–2007.7.
dModel 3: level 1 variance=1.20 (SD 1.10); level 2 variance=1.48 (SD 1.22). Akaike information criterion=4044.7; Bayesian information criterion=4105.6; log likelihood=–2010.3.
eOutcome was not included in the model.