Reliability and validity of measures from the Behavioral Risk Factor Surveillance System (BRFSS).

OBJECTIVES: To assess the reliability and validity of measures on the BRFSS, to assist users in evaluating the quality of BRFSS data, and to identify areas for further research. METHODS: Review and summary of reliability and validity studies of measures on the BRFSS and studies of measures that were the same or similar to those on the BRFSS from other surveys. RESULTS: Measures determined to be of high reliability and high validity were current smoker, blood pressure screening, height, weight, and BMI, and several demographic characteristics. Measures of both moderate reliability and validity included when last mammography was received, clinical breast exam, sedentary lifestyle, intense leisure-time physical activity, and fruit and vegetable consumption. Few measures were of low validity and only one measure was determined to be of low reliability. Several other measures were of high or moderate reliability or validity, but not both. The reliability or validity could not be determined for some measures, primarily due to lack of research. CONCLUSIONS: Most questions on the core BRFSS instrument were at least moderately reliable and valid, and many were highly reliable and valid. Additional research is needed for some measures.

Acupressure for nausea: results of a pilot study.

PURPOSE/OBJECTIVES: To compare differences in nausea experience and intensity in women undergoing chemotherapy for breast cancer between those receiving usual care plus acupressure training and treatment and those receiving only usual care. DESIGN: Single-cycle, randomized clinical trial. SETTING: Outpatient oncology clinic in a major teaching medical center and a private outpatient oncology practice. SAMPLE: Seventeen women participated in the study. The typical participant was 49.5 years old (SD = 6.0), Caucasian (59%), not married/partnered (76%), on disability (53%), born a U.S. citizen (76%), and heterosexual (88%); lived alone (59%); had at least graduated from high school (100%); and had an annual personal income of $50,000 or greater (65%). METHODS: The intervention included finger acupressure bilaterally at P6 and ST36, acupressure points located on the forearm and by the knee. Baseline and poststudy questionnaires plus a daily log were used to collect data. MAIN RESEARCH VARIABLES: Nausea experience measured by the Rhodes inventory of Nausea, Vomiting, and Retching and nausea intensity. FINDINGS: Significant differences existed between the two groups in regard to nausea experience (p < 0.01) and nausea intensity (p < 0.04) during the first 10 days of the chemotherapy cycle, with the acupressure group reporting less intensity and experience of nausea. CONCLUSIONS: Finger acupressure may decrease nausea among women undergoing chemotherapy for breast cancer. IMPLICATIONS FOR NURSING PRACTICE: This study must be replicated prior to advising patients about the efficacy of acupressure for the treatment of nausea.