Table 4.

Results of model predicting clinical signs of respiratory health in western lowland gorillas

	Estimate	SE	X2	df	p
Age	1.06	0.14	32.72	1	< 0.01
Sex	0.99	0.30	8.41	1	< 0.01
Group size	−0.26	0.28	0.85	1	0.36
Fruit Availability	−0.46	0.16	8.31	1	< 0.01
Rainfall	−0.25	0.15	2.96	1	0.09
Group (Buka versus Kingo)	0.68	0.50	11.91	2	< 0.01
Group (Buka versus Loya)	1.46	0.47
Number observation days	0.07	0.11	(a)	(a)	(a)

(a) Not calculated because term is control term