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The Sister Study

Geographic Characteristics

Participants at Enrollment Geographic distribution of sister study participants at enrollment

 

Enrollment by State

State Women Enrolled Percentage
Alabama 401 0.8%
Alaska 123 0.2%
Arizona 1,553 3.1%
Arkansas 343 0.7%
California 4,222 8.3%
Colorado 1,212 2.4%
Connecticut 552 1.1%
Delaware 162 0.3%
District of Columbia 137 0.3%
Florida 3,602 7.1%
Georgia 1,367 2.7%
Hawaii 109 0.2%
Idaho 233 0.5%
Illinois 2,613 5.1%
Indiana 1,020 2.0%
Iowa 641 1.3%
Kansas 454 0.9%
Kentucky 609 1.2%
Louisiana 523 1.0%
Maine 344 0.7%
Maryland 1,470 2.9%
Massachusetts 1,126 2.2%
Michigan 2,280 4.5%
Minnesota 1,031 2.0%
Mississippi 306 0.6%
Missouri 1,531 3.0%
Montana 248 0.5%
Nebraska 485 1.0%
Nevada 243 0.5%
New Hampshire 308 0.6%
New Jersey 1,260 2.5%
New Mexico 278 0.5%
New York 2,579 5.1%
North Carolina 1,663 3.3%
North Dakota 120 0.2%
Ohio 2,072 4.1%
Oklahoma 423 0.8%
Oregon 890 1.7%
Pennsylvania 1,953 3.8%
Puerto Rico 885 1.7%
Rhode Island 252 0.5%
South Carolina 625 1.2%
South Dakota 172 0.3%
Tennessee 863 1.7%
Texas 2,499 4.9%
Utah 304 0.6%
Vermont 141 0.3%
Virginia 1,520 3.0%
Washington 1,532 3.0%
West Virginia 261 0.5%
Wisconsin 1,252 2.5%
Wyoming 92 0.2%
Total 50,884 100%

Enrollment by Region

U.S. Census Region Number of Participants Percentage
Northeast 8,532 17%
Midwest 13,689 27%
South 16,743 33%
West 11,010 22%
Puerto Rico 883 2%
Missing 27 -- 

 

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Passive Cohort

The percentages for each characteristic may not add up to 100 due to rounding. Those missing data or for whom a category was not applicable were excluded from the total (N = 3,066) for calculating percentages. Data approximates final passive follow-up data.

Enrollment by Region

U.S. Census Region Number of Participants Percentage
Northeast 500  17%
Midwest 649 22%
South 1,215 40%
West 607 20%
Puerto Rico 51 2%
Missing 44 --

 

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