Table 3.

Associations Between GC Rhythm Parameters in the Infants’ Saliva and Breast Milk

			Infants’ Saliva
			AUCi		AUCg		Maximum		Time of Maximum
			β (95% CI)	P	β (95% CI)	P	β (95% CI)	P	β (95% CI)	P
Breast Milk	Cortisol	AUCi	0.2 (–0.04 to 0.4)	0.10	0.2 (–0.1 to 0.5)	0.19	0.7 (–0.2 to 1.6)	0.13	–0.4 (–1.1 to 0.3)	0.26
		AUCg	0.2 (–0.02 to 0.4)	0.08	0.2 (–0.1 to 0.4)	0.16	0.6 (–0.1 to 1.4)	0.11	–0.4 (–1.0 to 0.3)	0.27
		Maximum	0.1 (0.01 to 0.12)	0.02	0.1 (–0.01 to 0.1)	0.12	0.2 (0.02 to 0.4)	0.03	–0.2 (–0.3 to 0.02)	0.07
		Time of maximum	0.0 (–0.2 to 0.2)	0.90	0.1 (–0.1 to 0.4)	0.27	–0.2 (–1.0 to 0.5)	0.57	0.4 (–0.3 to 1.0)	0.25
	Cortisone	AUCi	0.4 (–0.2 to 1.0)	0.18	0.3 (–0.4 to 1.1)	0.41	1.5 (–0.1 to 3.1)	0.07	–0.4 (–0.8 to –0.1)	0.03
		AUCg	0.1 (–0.3 to 0.5)	0.66	0.1 (–0.5 to 0.7)	0.76	0.9 (–0.3 to 2.1)	0.13	–0.3 (–0.6 to -0.1)	0.02
		Maximum	0.2 (–0.1 to 0.4)	0.18	0.0 (–0.3 to 0.3)	0.91	0.4 (–0.2 to 1.1)	0.20	–0.2 (–0.4 to –0.04)	0.01
		Time of maximum	0.2 (–0.7 to 1.2)	0.65	0.8 (–0.4 to 2.1)	0.20	0.7 (–2.1 to 3.4)	0.63	0.4 (–0.3 to 1.0)	0.28

Values represent β (95% CI) as analyzed with linear regression.

Abbreviations: AUCi: area under the curve increase, representing GC variability;