Table 2 Output from linear mixed-effects models predicting the change in daily mood scores during the 4-week intervention

From: Probiotics reduce negative mood over time: the value of daily self-reports in detecting effects

Dependent variable

Model term

Coefficient

SE

Lower CL

Upper CL

P value

Negative mood

Group

−1.11

3.13

−7.23

5.02

0.724

Time

−0.03

0.06

−0.15

0.09

0.601

Group × Time

−0.22

0.08

−0.38

−0.06

0.009

Positive mood

Group

2.97

3.28

−3.45

9.39

0.367

Time

−0.05

0.06

−0.16

0.06

0.382

Group × Time

0.02

0.08

−0.13

0.18

0.784

  1. Results are given with the estimate for the coefficient, standard error and 95% confidence limit (CL). Note that the placebo group was set as the reference level such that a negative coefficient indicates a lower mood score in the probiotic group.
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