Table 2.
Fixed effects | Waking cortisol
|
Cortisol awakening response
|
Diurnal cortisol slope
|
Diurnal cortisol AUCg
|
||||
---|---|---|---|---|---|---|---|---|
Est. | SE | Est. | SE | Est. | SE | Est. | SE | |
Intercept: average level, γ00 | −1.754** | 0.159 | 0.154* | 0.050 | −0.124** | 0.022 | 79.386** | 3.862 |
Level 1 (day-specific) | ||||||||
Wake time, γ10 | −0.122 | 0.081 | 0.030 | 0.047 | 0.009 | 0.013 | −4.210** | 0.858 |
Non-compliance, γ20 | 0.233† | 0.123 | −0.097** | 0.037 | −0.011 | 0.014 | −0.721 | 1.875 |
Level 2 (person-specific) | ||||||||
Active coping style, γ01 | 0.060 | 0.213 | −0.132* | 0.062 | −0.041** | 0.015 | −8.009** | 2.970 |
Interpersonal stress, γ02 | −0.205 | 0.136 | −0.004 | 0.039 | −0.005 | 0.012 | −5.229* | 2.453 |
Coping × stress, γ03 | −0.010 | 0.414 | −0.246* | 0.095 | 0.068** | 0.023 | 2.045 | 5.970 |
White race/ethnicity, γ04 | −0.063 | 0.136 | 0.014 | 0.044 | −0.050** | 0.017 | −3.142 | 3.778 |
Pubertal status, γ05 | 0.054 | 0.085 | 0.005 | 0.031 | 0.023* | 0.010 | 5.452** | 1.898 |
Internalizing symptoms, γ06 | −0.056 | 0.064 | 0.014 | 0.017 | 0.001 | 0.006 | 0.072 | 1.080 |
Random effects | ||||||||
σ2ε (L1 residual variance) | 0.365** | 0.059 | 0.089** | 0.026 | 0.009** | 0.001 | 148.177** | 35.121 |
σ2u0 (L2 residual variance) | 0.240** | 0.084 | 0.007 | 0.005 | 0.002* | 0.001 | 77.942** | 20.559 |
Note 366 days (Level 1) nested within 122 individuals (Level 2). Wake time within-person centered and all continuous Level 2 predictors grand-mean centered. Non-compliance dummy coded (1 = not compliant with saliva sampling procedures). White race/ethnicity dummy coded (1 = White). Outcomes calculated from log-based cortisol values (μg/dl). Bold indicates significant findings in support of hypotheses
Est. partial regression coefficient estimate, SE robust standard error
p < .10,
p < .05,
p < .01