“…In US adults, three early studies found acceptance at less than 10% (Moe & Grau, 2001;Pesola, Westfal, & Kuffner, 1999;Straight & Heaton, 2007). Rates of nPEP acceptance for the remaining four US adult populations ranged from moderate (20-40%) in one state-wide, and one single-site study (Merchant et al, 2008;Myles, Hirozawa, Katz, Kimmerling, & Bamberger, 2000) to greater than 75% in two other single-site studies (Linden et al, 2005;Merchant et al, 2003).…”