. Author manuscript; available in PMC: 2010 Jul 1.

Published in final edited form as: Psychoneuroendocrinology. 2009 Mar 5;34(6):795–804. doi: 10.1016/j.psyneuen.2009.02.001

Table 2.

Infant factors that potentially influence sAA or cortisol (Mean and SD or percent)

	2-Months	6-Months	12-Months	24-Months
Time of inoculation	12:24 (2:33)	12:22 (2:00)	11:21 (2:39)	12:55 (2:40)
Percent asleep in car ride	47.4%	47.1%	5.3%	13.6%
Time between inoculation and
pre-test sample (min.)	63 (27)	58 (24)	56 (18)	47 (19)
Time between inoculation and
last infant feeding (min.)	94.8 (63)	105.9 (60.9)	86.0 (46.2)	99.1 (66.7)
Percent breastfed	86.4%	36.8%	27.3%	4.5%
Number of injections	3.6 (0.7)	3.2 (0.7)	3.1 (1.0)	1.0 (0.2)