U.S.A.: New Pew Survey Reveals: Adventists Often Stay Adventist Washington D.C./USA | 05.03.2008 | Country report Roughly 60 percent of Americans reared in what it defined as the "Adventist family" of churches, a grouping of Protestants dominated by the Seventh-day Adventist, remain in that family as adults, a landmark survey released February 25 revealed. An extensive new survey by the Pew Forum on Religion & Public Life, based on interviews with more than 35,000 Americans age 18 and older, the U.S. Religious Landscape Survey, finds that religious affiliation in the U.S. is at once "very diverse and ext