Women are randomly assigned to a monophasic pill (Ortho-Cyclen) or a triphasic pill (Ortho Tri-Cyclen) by the health care provider. These pills are matched for estrogen content. The progestin in both is norgestimate, but its dose differs over the monthly cycle.
Investigators: John Bancroft, M.D., The Kinsey Institute;
Stephanie Sanders, Ph.D., The Kinsey Institute and Gender Studies; Cynthia
Graham, Ph.D., Dept. of Psychology; Judith Klein, M.D., Planned Parenthood
of Central and Southern Indiana
Research Associates: Jennifer Bass, Stephanie Hinton
This research is being assisted by a fellowship from the Sexuality Research Fellowship Program of the Social Science Research Council with funds provided by the Ford Foundation.
Copyright (c) 1997 The Kinsey Institute for Research in Sex, Gender, and Reproduction.
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Last updated: 01 December 1997