Table 2.
Estimated linear mixed models for sC AUCg and sAA AUCg.
| sC AUCg | sAA AUCg | |||||||
|---|---|---|---|---|---|---|---|---|
| Coeff. | SE | χ2 | p | Coeff. | SE | χ2 | p | |
| Intercept | 9.1 | 0.1 | 12.4 | 0.4 | ||||
| Positive thoughts within-person | −1.1 | 1.9 | 0.36 | 0.54 | −1.0 | 3.8 | 0.07 | 0.79 |
| Positive thoughts between-person | −1.7 | 0.8 | 5.29 | 0.021 | 2.5 | 2.0 | 1.56 | 0.21 |
| Negative thoughts within-person | 3.3 | 1.4 | 5.38 | 0.021 | 3.9 | 4.5 | 0.72 | 0.39 |
| Negative thoughts between-person | 2.0 | 0.5 | 19.18 | <0.001 | −0.7 | 1.4 | 0.26 | 0.61 |
| Wake-up time | −20.4 | 5.3 | 19.71 | <0.001 | −3.2 | 9.2 | 0.14 | 0.71 |
| Number of caffeinated beverages | 9.1 | 4.8 | 3.46 | 0.063 | 4.8 | 14.4 | 0.12 | 0.72 |
| Number of alcoholic beverages | 2.0 | 7.2 | 0.08 | 0.77 | −33.6 | 24.1 | 3.61 | 0.058 |
| Number of cigarettes | 1.1 | 2.4 | 0.20 | 0.65 | −4.1 | 6.2 | 0.48 | 0.48 |
| Number of stressful events | 3.4 | 1.5 | 4.84 | 0.028 | −8.6 | 5.2 | 3.17 | 0.076 |
| Music performance anxiety | −4.2 | 0.5 | 68.39 | <0.001 | 3.9 | 1.6 | 6.05 | 0.014 |
| Social anxiety | 1.1 | 0.3 | 19.89 | <0.001 | 0.1 | 0.7 | 0.02 | 0.90 |
| Depressive symptoms | 1.3 | 0.9 | 1.85 | 0.17 | 3.4 | 2.7 | 1.54 | 0.21 |
| Age | 0.4 | 1.4 | 0.08 | 0.77 | −3.0 | 4.2 | 0.55 | 0.46 |
| Gender | 19.6 | 12.1 | 2.46 | 0.11 | −39.3 | 39.5 | 2.25 | 0.13 |
| Hormonal contraception | 17.9 | 11.4 | 2.34 | 0.12 | −34.8 | 38.8 | 1.69 | 0.19 |
| Day of the week | 16.32 | 0.006 | 12.37 | 0.030 | ||||
| Tuesday | −16.5 | 17.5 | −48.2 | 66.7 | ||||
| Wednesday | −7.9 | 14.1 | −58.8 | 54.5 | ||||
| Thursday | −30.5 | 14.0 | −72.0 | 49.1 | ||||
| Friday | −32.7 | 15.2 | −68.0 | 51.6 | ||||
| Saturday | −0.5 | 9.0 | −17.1 | 28.9 | ||||
| Season | 9.09 | 0.028 | 9.23 | 0.026 | ||||
| Summer | −5.9 | 19.3 | −72.8 | 73.2 | ||||
| Fall | 31.5 | 13.4 | 43.5 | 42.3 | ||||
| Winter | 33.4 | 12.3 | −27.7 | 41.7 | ||||
Reference categories for categorical predictors were as follows: gender: men; hormonal contraception: naturally cycling women; day of the week: Sunday; season: spring. For continuous predictors, coefficients express the change in the outcome measure per unit. Units are as follows: positive and negative thoughts within- and between-person, music performance anxiety, social anxiety, depressive symptoms: 1 point on the corresponding scales; wake-up time: 1 h; number of caffeinated beverages: 1 beverage; number of alcoholic beverages: 1 beverage; number of cigarettes: 1 cigarette; number of stressful events: 1 event; age: 1 year; Coeff. = estimated coefficient; SE = standard error. Degrees of freedom for χ 2 are five for day of the week, three for season, and one for all other predictors. Statistically significant results for the predictors positive and negative post performance-related thoughts are marked in bold.