Subjects were asked about concerns regarding FMT, and asked to rate each on a 5-point Likert scale (1 = not at all concerning; 5 = overwhelming concern). Concerns regarding risk of infection and effectiveness received an average score of 2.74 and 2.72, respectively, whereas concern regarding the aesthetics, or "yuck factor" was slightly lower (2.1: P = NS for all comparisons). Subjects also were asked to rate the likelihood of undergoing FMT, if it were available, for their current episode of CDI, a subsequent episode of CDI, or if their physician recommended undergoing FMT (10 point scale: 1 = not at all likely; 10 = certainly agree to FMT). The mean scores (SD) for agreeing to FMT for the current or a subsequent episode were 4.8 (SD 2.7) and 5.6 (SD 3.0); P = .12, but increased to 7.1 (SD 3.23) if FMT were recommended by their physician (P < .001 for FMT if physician recommended vs FMT for current episode; P = .001 for FMT if physician recommended vs FMT for a subsequent episode). Finally, subjects were asked about the likelihood of enrolling in a study comparing FMT to standard antimicrobial treatment, with answers ranging from 1 (almost certainly would not enroll) to 5 (almost certainly would enroll). Among the 32 respondents to this question, 17 (53%) answered either "probably would enroll" or "almost certainly would enroll," with a mean score of 3.2.
Discussion
Overall, VA patients with a current episode of CDI were not aware of FMT, with just 15% knowing about the procedure. However, after learning about FMT, patients expressed clear opinions regarding the route and setting of FMT administration, with enema or colonoscopy being the preferred routes, and a hospital the preferred setting. In contrast, subjects expressed ambivalence with regard to the source of donor stool, with no clear preference for stool from an anonymous donor vs from a family member.
When asked about concerns regarding FMT, none of the presented options (risk of infection, uncertain effectiveness, or procedural aesthetics) emerged as significantly more important than did others, although the oft-cited concern regarding FMT aesthetics engendered the lowest overall level of concern. In terms of FMT acceptance, 4 subjects (12%) were opposed to the procedure, indicating that they were not at all likely to agree to FMT for all scenarios (defined as a score of 1 or 2 on the 10-point Likert scale) or by terminating the survey because of the questions. However, 15 (44%) indicated that they would certainly agree to FMT (defined as a score of 9 or 10 on the 10-point Likert scale) if their physician recommended it. Physician recommendation for FMT resulted in the highest overall likelihood of agreeing to FMT, a finding in agreement with a previous survey of FMT for CDI.10 Most subjects indicated likely enrollment in a potential study comparing FMT with standard antimicrobial therapy.
Strengths/Limitations
Study strengths included surveying patients with current CDI, such that patients had personal experience with the disease in question. Use of in-person interviews also resulted in a robust response rate of 81% and allowed subjects to clarify any unclear questions with study personnel. Weaknesses included a relatively small sample size, underrepresentation of women, and lack of detail regarding respondent characteristics. Additionally, capsule delivery of FMT was not assessed since this method of delivery had not been published at the time of survey administration.
Conclusion
This survey of VA patients with CDI suggests that aesthetic concerns are not a critical deterrent for this population, and interest in FMT for the treatment of recurrent CDI exists. Physician recommendation to undergo FMT seems to be the most influential factor affecting the likelihood of agreeing to undergo FMT. These results support the feasibility of conducting clinical trials of FMT in the VA system.