. Author manuscript; available in PMC: 2020 Aug 3.

Published in final edited form as: Int J Primatol. 2019 Sep 3;40(4-5):532–552. doi: 10.1007/s10764-019-00104-y

Table V.

Mixed models of facial width-to-height ratio and Anxiety by dominance status interactions

Variable	All individuals		Younger		Older
Variable	B	95% C.I.	B	95% C.I.	B	95% C.I.
Age	−0.19	[−0.43, 0.06]	−1.00	[−1.97, −0.17]	−0.79	[−4.12, 2.55]
Age²	0.38	[−0.10, 0.86]	4.14	[−0.50, 8.40]	1.52	[−2.88, 5.92]
Age³	−0.22	[−0.48, 0.04]	−5.04	[−10.4, −0.40]	−0.83	[−2.62, 0.97]
Sex	−0.07	[−0.13, −0.01]	−0.09	[−0.15, −0.04]	0.15	[−0.24, 0.54]
Dominance status	−0.02	[−0.03, 0.00]	−0.02	[−0.03, −0.00]	−0.06	[−0.13, 0.01]
Anxiety	−0.14	[−0.26, −0.02]	−0.13	[−0.23, −0.03]	−0.32	[−0.83, 0.17]
Dominance status × Anxiety	0.02	[0.00, 0.03]	0.02	[0.00, 0.03]	0.04	[−0.02, 0.10]

Bold indicates estimates whose confidence interval did not overlap with 0. We observed rhesus macaques (Macaca mulatta) at the Oregon National Primate Research Center between March and June 2014, and at the California National Primate Research Center between January and April 2014