Table 1

Characteristics of the included studies

Study	Design	Country	Years of data collection	Number of participants	Age (mean, SD)	Previous PSA screening	Family history of prostate cancer
Studies reporting direct choice related to PSA screening acceptability
Cantor et al 24	DCE	USA	1997–1998	168	56 (NR)	Ever=50% Unsure=14%	17% have relative with prostate cancer
de Bekker-Grob et al 25	DCE	The Netherlands	2013	1000	63.3 (5.2)	NR	51% know someone with prostate cancer
Howard et al 26 and Pignone et al 29	DCE	Australia and USA	2011	911	59.8 (5.6)	Ever=20.9% Within past year=42%	0%
Howard et al 27	DCE	USA	NR	662	55 (9)	Ever=44.6% Within past year=28.1%	0%
van den Bruel et al 28	DCE	UK	2014	490	46.9 (range: 19–87)	Ever=53.8%	NR
Studies of decision aids reporting men’s willingness to undergo PSA screening
Gattellari and Ward30	RCT	Australia	NR	258	54 (8.55)	NR	NR
Petrova et al 31	RCT	USA	NR	256	36 (13)	Ever=18%	27% had a friend or a relative diagnosed with prostate cancer
Sheridan et al 32	RCT	USA	NR	188	60 (9)	Ever=70%	20% had any family history
Sheridan et al 33	RCT	USA	NR	775	NR	Ever=80%	NR
Taylor et al 34	RCT	USA	2007–2011	1893	56.9 (6.8)	Ever=86.3% Within past year=59.3%	23% had family history
Wilt et al 35	RCT	USA	1998	342	72.8 (8.4)	Within past year=31%	14%

DCE, discrete choice experiment; NR, not reported; PSA, prostate-specific antigen; RCT, randomised controlled trial.