Incident and demographic trends in cervical neoplasia, ,

During the past several years, information has been published that suggests that preinvasive cervical neoplasia may be increasing in the United States. Part of the increase can be explained by changes in disease definition, in disease reporting, and in screening patterns. However, a small increase may have occurred in certain population subsets. (Am J Obstet Gynecol 1996;175:1088-90.)