A randomized trial of a brief intervention to increase fruit and vegetable intake: a replication study among callers to the CIS.

BACKGROUND: Results are reported from a large randomized trial designed to increase fruit and vegetable consumption among callers to the National Cancer Institute's Cancer Information Service (CIS) (n = 1,717). METHODS: CIS callers assigned to the intervention group (n = 861) received a brief proactive educational intervention over the telephone at the end of usual service, with two follow-up mailouts. Key educational messages and print material derived from the NCI 5 A Day for Better Health program were provided to intervention participants. Participants were interviewed by telephone at 4 weeks (n = 1,307), 4 months (n = 1,180), and 12 months for follow-up (n = 1,016). RESULTS: Results obtained from a single-item measure of fruit and vegetable consumption indicate a significant intervention effect of 0.88 servings per day at 4 weeks follow-up (P < 0.001), 0.63 servings per day at 4 months follow-up (P < 0.001), and 0.43 servings per day at 12 months follow-up (P < 0.001). Using a 7-item food frequency measure, an intervention effect of 0.63 servings per day was obtained at 4 weeks follow-up (P < 0.001), compared with 0.39 servings per day at 4 months follow-up (P = 0.002) and 0.44 servings per day at 12 months follow-up (P = 0.002). A 24-h recall assessment included in the 4-month interviews also yielded a significant intervention effect of 0.67 servings per day (P = 0.015). The vast majority of callers (90%) endorsed the strategy of providing 5 A Day information proactively within the CIS. CONCLUSIONS: This brief educational intervention was associated with higher levels of self-reported fruit and vegetable intake at both short- and long-term follow-up. Additional research is recommended to test this or a similar intervention in diverse populations.

Balancing research and service: the experience of the cancer information service.

BACKGROUND: The National Cancer Institute's Cancer Information Service (CIS), the nation's foremost resource for cancer information, has supported cancer control research throughout its 22-year history. The Cancer Information Service Research Consortium (CISRC) is a consortium established to fully involve the CIS in theory-based cancer control research. METHODS: This paper focuses on the experiences of the CIS Project Directors in the development and implementation of three research projects within the CIS program. Conclusions are drawn from discussions that have taken place over time in such venues as conference calls, CISRC Members Council meetings, and project advisory meetings. RESULTS: Overall, the CISRC/CIS collaboration has been successful. A number of factors have contributed to this success, including the perceived value of the research within the CIS and the mechanisms and structures established to foster collaboration. The lessons learned, based on the challenges and opportunities of implementing these intervention research projects within the operations of the regional CIS offices, are discussed. CONCLUSIONS: Integration of research within a service program requires careful planning and preparation. Mutual benefit, shared ownership, consistency with current practice, staff training, and the value of research to each partner were essential ingredients to the success of this collaboration.