Table 1.

Descriptive statistics and zero-order correlations.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
1. Average waking cortisol	–
2. Average wake + 30 cortisol	.36^**	–
3. CAR	−.62^**	.38^**	–
4. Diurnal cortisol slope	−.30^**	−.17	.10	–
5. Diurnal AUCg (μg/dl)	.29^**	.35^**	.14	.50^**	–
6. Average night before stress	−.14	−.02	.06	.08	.01	–
7. Average daily rumination	−.04	−.02	−.05	.04	.02	.24^**	–
8. Average daily NA	−.10	.06	.13	.02	.01	.18^†	.41^**	–
9. White (1 = yes)	−.01	.14	−.01	−.19^*	−.07	−.01	.10	−.04	–
10. Age (years)	.03	.02	−.05	.14	.12	.18^†	.24^**	.14	.25^**	–
11. Trait rumination	−.20^*	−.12	.15	.13	.07	.09	.31^**	.29^**	.15	.25^**	–
12. Family income	.20^*	.08	−.14	−.04	.10	.08	.03	−.19^*	.13	.05	.05	–
13. Depressive symptoms	−.05	−.02	.13	−.02	.05	−.09	−.01	.19^*	.01	.14	.14	−.19^*	–
14. Anxiety symptoms	−.10	.18^†	.20^†	.07	.15^†	.10	.19^*	.16^†	.04	.17	.17^†	−.11	.27^**	–
15. Pubertal status	−.01	.04	−.01	.24^**	.24^**	.07	.05	.15^†	−.02	.43^**	.43^**	−.17^†	.18^*	.19^*	–
16. Average wake time	−.23^*	−.33^**	−.09	.17^†	−.37^**	.01	.06	.07	−.27^**	.12	−.06	−.02	.05	−.03	.06	–
M^a	−1.59	−1.17	0.09	−0.18	75.68	2.51	1.87	0.29	87.70	12.39	2.11	4.69	0.27	0.39	2.66	7.40
SD	0.63	0.51	0.20	0.08	12.18	0.68	0.60	0.33	–	0.76	0.78	1.39	0.52	0.32	0.60	1.55
Minimum	−4.67	−2.72	−0.69	−0.40	41.91	1.00	1.00	0.00	–	10.83	1.00	1.00	0.00	0.00	1.20	4.83
Maximum	−0.25	−0.18	0.83	0.04	122.13	3.89	3.33	1.63	–	15.00	4.00	6.00	2.50	1.43	3.70	12.01

Notes: N = 122 for waking cortisol, diurnal slope, and AUCg. N = 91 for wake + 30 cortisol and CAR after excluding participants who did not adhere to saliva protocol. Cortisol values were transformed using the natural log function. Parent income ranges from 1 = under $10,000/year to 6 = over $100,000/year. NA = negative affect. Wake time reported in hours with decimals representing portion of hour. Depressive and anxiety symptoms reflect composite of past (lifetime) and current (past month) symptoms (standardised).

Mean for continuous variables and percentage of sample for dichotomous variables.

^†

p < .10.

p < .05.

^**

p < .01.