. 2012 Jul 26;7(7):e41684. doi: 10.1371/journal.pone.0041684

Table 2. Association of tail chasing behaviour and dietary nutrients only among tail chasers (TC_index≥2)^a.

Source – pooled data (N = 116)	df	Chi-square	P
TC_index	1	8.73	0.003
Breed	2	11.90	0.003
Breed ^* TC_index	2	8.32	0.016
*Source – Bull Terriers (N = 53)*	df	*Chi-square*	P
TC_index	1	7.24	0.007
*Source – Staffordshire Bull Terriers (N = 27)*	df	*Chi-square*	P
TC_index	1	8.01	0.005
*Source – German Shepherd (N = 36)*	df	*Chi-square*	P
*TC_index*	1	0.20	0.657

Binary variable given nutrients/not given nutrients was used as a response variable in the model. Sex and sex.

TC_index were included in the preliminary analysis, but were nonsignificant and were dropped out. Results for both pooled and breed-wise analyses are presented. Type 3 analysis statistics are presented.

Table 2. Association of tail chasing behaviour and dietary nutrients only among tail chasers (TCindex≥2)a.

Table 2. Association of tail chasing behaviour and dietary nutrients only among tail chasers (TC_index≥2)^a.