Challenges to replicating evidence-based research in real-world settings: training African-American peers as patient navigators for colon cancer screening.

Many cancer-prevention interventions have demonstrated effectiveness in diverse populations, but these evidenced-based findings slowly disseminate into practice. The current study describes the process of disseminating and replicating research (i.e., peer patient navigation for colonoscopy screening) in real-world settings. Two large metropolitan hospitals collaborated to replicate a peer patient navigation model within their existing navigation systems. Six African-American peer volunteers were recruited and trained to navigate patients through colonoscopy scheduling and completion. Major challenges included: (1) operating within multiple institutional settings; (2) operating within nonacademic/research infrastructures; (3) integrating into an established navigation system; (4) obtaining support of hospital staff without overburdening; and (5) competing priorities and time commitments. Bridging the gap between evidence-based research and practice is critical to eliminating many cancer health disparities; therefore, it is crucial that researchers and practitioners continue to work to achieve both diffusion and fusion of evidence-based findings. Recommendations for addressing these challenges are discussed.

Effect of comorbid conditions on adherence to colorectal cancer screening.

Potential barriers to colorectal cancer (CRC) screening include preexisting medical conditions (comorbidities), physician recommendation, psychosocial factors, and screening preparedness. This study's purpose was to investigate the impact of comorbid conditions on CRC screening among African Americans. A stage-matched randomized clinical trial was performed. Asymptomatic African Americans over age 50, with a primary care physician, and eligible for CRC screening were recruited at The Mount Sinai Hospital from 2005 to 2008. One hundred sixty-one patients were assessed for referral for, and completion of, CRC screening, comorbid conditions, "readiness to change," and number of physician visits within the observation period. Data was compared to a pretrial index to predict the likely effect of comorbid conditions on CRC screening. One hundred fifty-nine patients completed the study; 108 (68.9%) were referred for and 34 (21.2%) completed CRC screening. No demographic characteristics were associated with CRC screening completion. CRC screening referrals were similar for all patients, regardless of comorbidities or clinical visits. Comorbidities rated as having extreme influence on CRC screening showed a trend toward lower screening rates. There was a significant increase in screening rates among participants in advanced stages of readiness at enrollment. These data suggest that while comorbidities did not predict colonoscopy completion, they may play a role in concert with other factors. This is the only study to assess the effect of screening colonoscopy in an African American primary care setting. We must continue to explore interventions to narrow the disparate gap in screening and mortality rates.

Sociodemographic correlates of stage of adoption for colorectal cancer screening in African Americans.

OBJECTIVES: African Americans have the highest incidence and mortality rates from colorectal cancer in the United States. Endoscopic screening, while effective in reducing both, is greatly underutilized. This research sought to understand sociodemographic factors related to stage of readiness for endoscopic screening. DESIGN: One hundred fifty nine African American women (76.1%) and men (mean age = 57.0 years) who were non-adherent to endoscopic screening guidelines were recruited and asked to complete semi-structured interviews. SETTING: Participants were all being seen for a non-acute primary care medical visit at one of two urban hospitals. The theoretical framework that informed this study was the Trans-theoretical Model (TTM) and the emphasis on Stage of Change or intention for undergoing endoscopic screening. MAIN OUTCOME AND MEASURES: Based on their stage of readiness to undergo screening, 67 (42%) were categorized as precontemplative (Has no plans to have a colonoscopy) while 92 were categoriezed as being in a contemplative or preparation stage. Using chi-square and Student t-tests, differences were examined between the two groups. RESULTS: No sociodemographic variables distinguished the two groups. However, people in the contemplative/preparation group were more likely to: have a regularly seen healthcare professional (63.7% vs 36.3%; P = .005), have had a previous recommendation for screening (65.7% vs 34.3%; P = .003); had heard of a colonoscopy (63.6% vs 36.4%; P = .000) and have been told by a healthcare professional that they needed a colonoscopy (73.1% vs 26.9%; P = .000). CONCLUSIONS: This study helps us to better understand the relevance of sociodemographic characteristics that may be associated with completing endoscopic colorectal cancer screening. In addition, we confirm that physician recommendation and individual awareness of the procedure are significant factors in readiness to get screened.