Ford 2004.
Methods | Randomised controlled trial | |
Data | Setting: community, USA. 12,400 African American men aged 55 to 74 eligible for a prostate, lung and colorectal cancer screening trial | |
Comparisons | Investigated the effect of different trial information and consent methods Intervention A: enhanced recruitment letter, telephone call by African American interviewer, baseline information by mail, reminder calls/mailings for baseline information/consent Intervention B: enhanced recruitment letter, telephone call by African American interviewer, baseline information over telephone, reminder calls/mailings for consent form Intervention C: enhanced recruitment letter, telephone call by African American interviewer, church session, baseline information at church session Compared to standard recruitment letter, telephone assessment by African American or white interviewer, baseline information by mail, reminder calls/mailings for baseline information/consent |
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Outcomes | Proportion recruited to trial | |
Notes | ||
Risk of bias | ||
Item | Authors' judgement | Description |
Random Sequence generation ok? | Unclear | Randomised but no more details |
Allocation concealment? | Unclear | As above |
Blinding of participants and personnel ok? | Unclear | Potential participants were blinded but the researchers probably were not blinded |
Blinding of outcome assessment ok? | Yes | Objective outcome |
Incomplete outcome data handled ok? | Yes | Adequate |
Free of selective reporting? | Yes | Recruitment outcome presented, which is all the review needs |
Was the study free of other bias? | Yes | No other biases apparent |
Overall bias? | Unclear | Unclear risk of bias |