Table 2. Odds ratios for the joint and marginal effects of single nucleotide polymorphisms complement factor H 402 and rs11200638 on age-related macular degeneration.

	rs11200638
CFH 402	GG/GA	AA	CFH 402 risk (adjusted for rs11200638)
TT	1	7.92	1
CT	1.11	30.52	1.41 (95% CI: 0.54,3.74)
rs11200638 risk adjusted for CFH	1	10.02; 95% CI: 4.36,23.06

CFH indicates complement factor H. Joint odds ratios were calculated from standard formulae. Marginal odds ratios and 95% confidence intervals were calculated using logistic regression (see Methods) with each SNP was adjusted for the other.