Volume 11 — February 06, 2014
ORIGINAL RESEARCH
Effect of a Liver Cancer Education Program on Hepatitis B Screening Among Asian Americans in the Baltimore–Washington Metropolitan Area, 2009–2010
The figure is a flow chart describing the process by which participants were selected for the control and intervention arms of the study, by clusters (community-based organization [CBO]) and participants (members of a CBO). The first box at the top of the chart shows that we assessed 27 CBOs and 940 participants. An arrow connects this box to the next below, which shows we excluded 63 participants who did not meet the eligibility criterion (n = 3), did not show up for the education program (n = 47), or did not complete the baseline survey (n = 13). The next box below shows 27 clusters and 877 participants remaining. Arrows flow down from this box to show 15 clusters and 441 participants allocated to the intervention arm and 12 clusters and 436 participants allocated to the control arm. Arrows flow from these boxes to show that the education program consisted of slide presentation, role-playing video, and photonovel for the intervention arm and an English-language brochure for the control arm. Arrows from the intervention arm box connect down to a box showing that 96 participants were lost to follow-up: 22 refusals, 17 wrong numbers, 13 no longer in the United States, and 44 unable to be located; 345 participants were available for follow-up. Arrows from the control arm box connect to a box showing that we lost 93 participants to follow-up: 24 refusals, 20 wrong numbers, 4 no longer in the United States, and 45 unable to be located; 343 participants were available for follow-up.
Figure. Flow of participants through a randomized controlled trial in a study of the effect of a liver cancer education program on hepatitis B screening among Chinese, Korean, and Vietnamese Americans (N = 877) in the Baltimore–Washington Metropolitan Area, 2009–2010. In equations, m refers to number of clusters (community-based organizations) and n refers to number of participants.
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