Table 2.

Daily salivary alpha-amylase sample descriptives

	Collection time			Level (U/mL)
	Mean	SD (Min)	ICC	Mean (SD)	ICC
Wake-up	6.44 h	76.2	0.58	139.29 (134.06)	0.59
30min after wake-up	7.23 h	79.2	0.57	87.39 (80.69)	0.64
Before lunch	12.50 h	74.4	0.36	162.59 (133.04)	0.63
Late afternoon	17.28 h	71.4	0.48	169.00 (136.33)	0.59
Before bed	22.38 h	69.6	0.66	153.89 (137.28)	0.51

Notes. Descriptives were based on 6,121 samples from 1,281 days and 165 caregivers.