. 2009 Jun 10;276(1670):3133–3140. doi: 10.1098/rspb.2009.0727

Table 1.

ANCOVA and ANOVA statistics assessing the effect of MHC genotype and season (spring versus autumn) on two fitness measures (1 and 2) and number of sticklebacks in stomach (3), as well as an assessment of associations between survival (dead versus alive) and the two fitness measures (4 and 5).

parameter	analysis	details of the test	n	F	p
1. number of Diphyllobothrium versus genotype	ANCOVA	genotype^a	50	4.522	0.017
		season^a		0.506	0.481
		genotype×season		0.662	0.521
		standard length^b		40.576	<0.001
2. belly flap thickness versus genotype	ANCOVA	genotype^a	37	5.176	0.012
		season^a		2.238	0.145
		genotype×season		0.719	0.495
		standard length^b		4.381	0.045
3. number of sticklebacks in stomach	ANOVA	genotype^a	50	0.067	0.935
		season^a		28.339	<0.001
		genotype×season		0.509	0.605
4. belly flap thickness versus survival	ANCOVA	survival^a	37	6.410	0.016
		standard length^b		8.413	0.006
5. number of Diphyllobothrium versus survival	ANCOVA	survival^a	50	0.825	0.368
		standard length^b		31.951	<0.001

^aFixed factor.

^bCovariate.