Table 2.

Multilevel regression estimates predicting daily cortisol activity from loneliness and coping efficacy.

	Model 2			Model 3
	Loneliness			Loneliness × Coping
	Coefficient	SEI	CI	Coefficient	SEI	CI
Intercept: waking level, γ000	−1.593***	.073	−1.739 – −1.447	−1.595***	.071	1.737 – 1.453
White, γ001	.132	.153	−.173 – .437	.200	.138	−.075 – .475
Oral contraceptive use, γ002	−.072	.138	−.347 – .203	−.167	.122	− .410 – .076
Caffeine, γ003	.049	.130	−.210 – .308	.013	.121	−.228 – .254
Cortisol area under the curve T1, γ004	.012†	.007	.002 – .026	.013†	.007	−.001 – .027
Loneliness T1, γ005	−.003	.010	−.023 – .017	−.011	.009	−.029 – .007
Loneliness T2, γ006	.005	.009	−.013 – .025	.003	.008	−.013 – .019
Coping efficacy T1, γ007				−.064**	.022	−.108 – .020
Coping efficacy T2, γ008				.015	.017	−.019 – .049
Loneliness T2 Coping efficacy T1, γ009				.003*	.001	.001 – .005
Cortisol awakening response, γ100	.550***	.056	.438 – .662	.552***	.056	.440 – .664
White, γ101	−.143	.123	−.388 – .102	−.174	.128	−.429 – .081
Oral contraceptive use, γ102	−.184†	.108	−.400 – .032	−.119	.109	−.337 – .099
Caffeine, γ103	−.075	.115	−.304 – .154	−.037	.112	−.260 – .186
Loneliness T1, γ104	−.005	.007	−.019 – .009	−.002	.007	−.016 – .012
Loneliness T2, γ105	.002	.007	−.012 – .017	.001	.009	−.017 – .019
Coping efficacy T1, γ106				.035†	.019	−.003 – .073
Coping efficacy T2, γ107				−.016	.018	−.052 – .020
Loneliness T2 Coping efficacy T1, γ108				−.002	.002	−.006 – .002
Time since waking: linear slope, γ200	−.079***	.016	−.11 – −.047	−.079***	.016	−.111 –.047
White, γ201	−.021	.014	−.049 – .007	−.029*	.012	−.053 –.005
Oral contraceptive use, γ202	.018	.015	−.012 – .048	.029	.015	−.001 – .059
Caffeine, γ203	.014	.013	−.012– .040	.019	.013	−.007 – .045
Loneliness T1, γ204	.002*	.001	.001 – .004	.003**	.001	.001 – .005
Loneliness T2, γ205	−.002*	.001	−.004 – −.001	−.002*	.001	−.004 – .001
Coping efficacy T1, γ206				.005†	.003	−.001 – .011
Coping efficacy T2, γ207				−.002	.002	−.006 – .002
Loneliness T2 Coping efficacy T1, γ208				−.004**	.0001	−.0042 – .0038
Time since waking2: quadratic slope, γ300	−.002*	.001	−.004 – −.001	−.002*	.001	−.004–.001
Momentary negative affect (NA), γ400	.066**	.024	.018 – .114	.045*	.023	−.001 –.068
Momentary stress level, γ500	−.008	.021	−.050 – .034	−.010	.023	−.056 – .036

Note. 958 moments nested within 70 individuals. Intercept (waking cortisol level) reflects log μg/dL. SE = robust standard errors. CI = 95% confidence interval for individual regression estimates.

^†p < .10,

^*p .05,

^**p < .01,

^***p < .001.