Table 3.
Linear regression models for adversity exposure count and psychological health with mean log diurnal cortisol (nmol/L) (n=916)
| Interaction Models | ||||||
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| Model 1 | Model 2 | Model 3 | ||||
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| β | 95%CI | β | 95%CI | β | 95%CI | |
| Intercept | 1.69 | 1.65, 1.73 | 1.65 | 1.56, 1.75 | 1.63 | 1.54, 1.73 |
| Adversity Count | −0.04 | −0.07, −0.02 | −0.04 | −0.07, −0.02 | −0.04 | −0.07, −0.02 |
| Psychological Health | −0.02 | −0.05, 0.001 | −0.02 | −0.05, −0.0004 | −0.03 | −0.05, −0.004 |
| Adversity Count X Psychological Health | 0.01 | −0.02, 0.03 | 0.004 | −0.02, 0.03 | 0.01 | −0.01, 0.03 |
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| Adversity Stratified Models | ||||||
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| Model 1 | Model 2 | Model 3 | ||||
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| β | 95%CI | β | 95%CI | β | 95%CI | |
| Lower Adversity (n=678) | ||||||
| Intercept | 1.73 | 1.68, 1.78 | 1.72 | 1.60, 1.84 | 1.71 | 1.58, 1.83 |
| Psychological Health | −0.03 | −0.06, 0.001 | −0.03 | −0.06, 0.001 | −0.03 | −0.06, −0.002 |
| Higher Adversity (n=238) | ||||||
| Intercept | 1.58 | 1.50, 1.67 | 1.53 | 1.38, 1.69 | 1.47 | 1.32, 1.63 |
| Psychological Health | −0.01 | −0.05, 0.03 | −0.01 | −0.05, 0.04 | −0.01 | −0.05, 0.03 |
Outcome is mean logarithmic-transformed diurnal cortisol levels (nmol/L).
Adversity count and psychological health (sum of z-scores of: depression and anxiety symptoms (both inversed) and positive affect; higher scores indicate better functioning) are standardized. Lower adversity is 0–2 adversity types, higher adversity is 3+ adversity types.
Model 1: age (continuous, mean centered) and sex (reference=male).
Model 2: Model 1 and race (reference=white), sexual orientation (reference=heterosexual), and father’s educational attainment (reference=4-year college or grad school).
Model 3: Model 2 and BMI (continuous, mean centered), time to cortisol assessment (continuous, mean centered), hormonal contraception use (reference=no use), sleep duration (continuous, mean centered) waking time (continuous, mean centered), smoking (reference=no smoking), and vigorous physical activity (reference=no physical activity).
Effects p<.05 are bolded. Effects p<.10 are italicized.