Table 1.

Study population characteristics

		No. of cases			No. of controls			Total
	eMERGE study site	Male	Female	All	Male	Female	All	Male	Female	All
Discovery	Marshfield	934	1,258	2,192	474	711	1,185	1,408	1,969	3,377
Replication	Mayo, Group Health/University of Washington, Vanderbilt, Geisinger	1,726	1,843	3,569	400	342	742	2,126	2,185	4,311
Total	All	2,600	3,101	5,761	874	1,053	1,927	3,534	4,154	7,688

Sample sizes are given for cataract cases, controls, and total population for the discovery and replication datasets. Sample information for discovery and replication samples after quality control.