Context: Despite widespread efforts to increase contraceptive use to prevent both pregnancy
and sexually transmitted diseases among sexually active adolescents, most prior work …

Introduction: Standard measures of contraceptive prevalence have known biases given that
they do not reflect sexual activity and true exposure to the risk of an unintended pregnancy …

Data from 1155 Czech women (493 using oral contraception, 662 non-users), obtained from
the Czech National Survey of Sexual Behavior, were used to investigate evolutionary-based …

Unintended pregnancy among women in the 18–30 age group is a public health concern.
The Extended Parallel Process Model (EPPM) provides a framework for exploring how …

American women, on average, are having only two children requiring the effective use of
contraception for about 30 years. Relatively few women rely on the same type of …

Reports an error in" Using 26,000 diary entries to show ovulatory changes in sexual desire
and behavior" by Ruben C. Arslan, Katharina M. Schilling, Tanja M. Gerlach and Lars Penke …

This paper describes a new and innovative approach to measuring relationships,
contraception, and unintended pregnancy among young women. The ongoing project …

Purpose On a clinical level, pregnancy intentions help clinicians converse with patients
about pregnancy planning goals and help guide contraceptive behaviors. However, less …

Purpose: To investigate whether adolescent contraceptive non-use is associated with other
risk behaviors. Methods: A multistage sampling procedure produced a sample of 913 …

Objective The purpose of this study was to characterize age-group specific patterns in the
stability of contraceptive use and to evaluate whether factors that are associated with …