BMC Ophthalmology

Table 1 Baseline features of study groups

From: Role of complement factor B rs4151667 (L9H) polymorphisms and its interactional role with CFH Y402H and C3 rs2230199 (R102G) risk variants in age-related macular degeneration: a case control study

		Total	Control	AMD			P1	P2	P3	P4
		Total	Control	Total	Wet	Dry	P1	P2	P3	P4
Age	Mean ± SD	74 ± 7	73 ± 7	76 ± 8	75 ± 8	81 ± 7	< 0.001^a	0.006^a	< 0.001^a	< 0.001^a
sex	Male	240 (59.0%)	103 (53.9%)	137 (63.4%)	118 (66.7%)	19 (48.7%)	0.052^b	0.013^b	0.553^b	0.035^b
	Female	167 (41.0%)	88 (46.1%)	79 (36.6%)	59 (33.3%)	20 (51.3%)

P1 comparison of AMD versus control, P2 comparison of wet AMD versus control, P3 comparison of dry AMD versus Control, P4 comparison of wet versus dry AMD
^a Based on t-test
^b Based on Chi-Square test

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