Table 3.

Predictors of Cystoisospora load (oocysts/g feces) in juvenile spotted hyenas log10 (1+) transformed (N = 154) as estimated by a mixed‐effect negative binomial regression

	Estimate	SE	CI		z	p	df	G	p	AIC	ΔAIC
			Low	High
(Intercept)	1.63	0.87	−0.12	3.39	1.86	0.06	–
Age at sampling	−0.001	0.001	−0.003	−0.00002	−1.96	0.05	1	4.95	0.05	481.83	1.95
No. of coinfecting GI parasite taxa*	0.22	0.08	0.05	0.39	2.63	0.01	1	6.79	0.01	484.68	4.8
Clan Isiaka**	1.48	0.33	0.82	2.14	4.44	<0.001	2	18.24	<0.001	494.12	14.24
Clan Mamba**	1.34	0.37	0.61	2.10	3.61	<0.001
Maternal rank (high > low)	0.06	0.15	−0.24	0.35	0.42	0.68	1	0.17	0.68	478.06	−1.82
Number of adult clan members	−0.04	0.01	−0.07	−0.01	−2.95	0.003	1	8.49	0.004	486.37	6.49
Number of juvenile clan members	0.02	0.02	−0.01	0.06	1.33	0.18	1	1.66	0.20	479.54	−0.34

Potential predictors included age, coinfection (scored as the number of other gastrointestinal parasite taxa), clan membership, and maternal social status. Shown are the model parameter estimates, their standard errors (SE) in natural log units, 95% confidence limits (CI), and z‐values with associated p‐value. Positive (negative) estimates indicate that an increase in the value of the parameter increased (reduced) egg load. Also shown are the tests for the significance of each parameter using log‐likelihood ratio tests (G), with associated p‐values and the values for the Akaike information criterion (AIC) for each alternative model when the specific predictor was removed. QAIC for the full model was 479.88.

Abbreviations: GI, gastrointestinal.

^*Presence of one or more of the following taxa: Ancylostoma, Diphyllobothrium, Dipylidium, Taeniidae, Spirurida, Trichuris.

^**Clan Pool was reference clan.