“…11,13,26,[28][29][30][31][32][33][34][35] Twenty-two studies were prospective, 12,28,[36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55] including cross-sectional, 41,42,49 quasi-experimental, 53 pilot, 50 and longitudinal study designs. 52 Of the RCTs, five involved an information or educational intervention, 28,29,[32][33][34] five randomised the screening offer, 11,13,26,30,35 and there was one decision aid trial. 31 The 33 studies were published between 1991, …”