... Utah, Virginia, West Virginia, Wisconsin, and Wyoming) and ve U.S. territories (American Samoa, the Commonwealth of the Northern Mariana Islands, the Commonwealth of Puerto Rico, Guam, and the ... condom during last sexual intercourse increased from 46.2% in 1991 to 61.5% in 2007. Logistic regression analyses also indicated a significant linear increase among female and male students in 9th–12th ... students (from 59.3% in 1991 to 46.0% in 2007). Among Hispanic and non-Hispanic white students, no significant change was detected.During 1991–2007, a significant linear increase in condom use was...