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. Author manuscript; available in PMC: 2014 Mar 13.
Published in final edited form as: Horm Behav. 2010 May 28;58(3):440–449. doi: 10.1016/j.yhbeh.2010.05.009

Table 1.

Effect of categorical rank (high- and low-ranking), adult subgroup size, infant age (days), time of sample collection (AM vs PM), and an interaction term for rank by subgroup size on log-transformed faecal glucocorticoid metabolite (FGM) concentrations in female chimpanzees

Variable Estimate Numerator
df 		Denominator
df 		F P
Dependent variable: log FGM
Intercept 1.2877 1 20.336 533.745 <0.001
Rank (high vs low) 0.1282 a 1 15.734 2.846 0.111
Adult subgroup size 0.0140 1 95.964 0.835 0.363
Time of faecal collection (AM vs PM) 0.0057 b 1 95.979 0.008 0.929
Offspring age (days) −0.0363 1 20.855 3.046 0.096
Rank*adult subgroup size −0.0198 c 1 95.953 5.049 0.027

Statistically significant results appear in bold.

a

For high-rank;

b

For AM samples;

c

For high-rank*adult subgroup size.