OBJECTIVE:This study was designed to identify factors that influence primary care physicians' willingness to perform flexible sigmoidoscopy.
MEASUREMENTS:Using a mailed questionnaire, we surveyed all 161 primary care physicians participating in a large health care system. We obtained information on training, current practice patterns, beliefs about screening for colorectal cancer, and the influence of various factors on their decision whether or not to perform flexible sigmoidoscopy in practice.
MAIN RESULTS:Of the 131 physicians included in the analysis, 68 (52%) reported training in flexible sigmoidoscopy, of whom 36 (53%) were currently performing flexible sigmoidoscopy in practice. Time required to perform flexible sigmoidoscopy, availability of adequately trained staff, and availability of flexible sigmoidoscopy services provided by other clinicians were identified most often as reasons not to perform the procedure in practice. Male physicians were more likely than female physicians to report either performing flexible sigmoidoscopy or desiring to train to perform flexible sigmoidoscopy (odds ratio 2.61; 95% confidence interval 1.10, 6.23). This observed difference appears to be mediated through different weighting of decision criteria by male and female physicians.
CONCLUSIONS:Approximately half of these primary care physicians trained in flexible sigmoidoscopy chose not to perform this procedure in practice. Self-perceived inefficiency in performing office-based flexible sigmoidoscopy deterred many of these physicians from providing this service for their patients. C olorectal cancer is the third most commonly diagnosed cancer for both men and women in the United States and the second most common cause of cancerrelated deaths. 1 Several studies have suggested that screening sigmoidoscopy reduces mortality from colorectal cancer, 2-4 and numerous medical societies recommend routine screening with flexible sigmoidoscopy. 5-9 However, current estimates suggest that there are too few gastroenterologists in the United States to provide all of the recommended screening flexible sigmoidoscopies and follow-up colonoscopies. 10 As a result, primary care physicians have been identified as a source of manpower to fill this gap.Unfortunately, many primary care physicians are not trained to perform flexible sigmoidoscopy or do not perform flexible sigmoidoscopy despite being trained. Previous studies suggest that only 23% to 67% of primary care physicians routinely perform flexible sigmoidoscopy as part of their practice. 11-13 Furthermore, it is unclear how physicians choose whether or not to perform flexible sigmoidoscopy as part of their practice. The few studies addressing this issue suggest that the physicians' training, gender, and practice location influence this decision. A survey of members of the American Academy of Family Physicians demonstrated that physicians who were board certified, had more recently completed training, and practiced in smaller communities were more likely to perform flexible sigmoidosc...