Philip L Ritter

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PURPOSE To evaluate effectively interventions to increase physical activity among older persons, reliable and valid measures of physical activity are required that can also detect the expected types of physical activity changes in this population. This paper describes a self-report physical activity questionnaire for older men and women, developed to(More)
CONTEXT For patients with chronic disease, there is growing interest in "self-management" programs that emphasize the patients' central role in managing their illness. A recent randomized clinical trial demonstrated the potential of self-management to improve health status and reduce health care utilization in patients with chronic diseases. OBJECTIVE To(More)
OBJECTIVES This study evaluated the effectiveness (changes in health behaviors, health status, and health service utilization) of a self-management program for chronic disease designed for use with a heterogeneous group of chronic disease patients. It also explored the differential effectiveness of the intervention for subjects with specific diseases and(More)
OBJECTIVES To assess the 1- and 2-year health status, health care utilization and self-efficacy outcomes for the Chronic Disease Self-Management Program (CDSMP). The major hypothesis is that during the 2-year period CDSMP participants will experience improvements or less deterioration than expected in health status and reductions in health care utilization.(More)
BACKGROUND The small-group Chronic Disease Self-Management Program (CDSMP) has proven effective in changing health-related behaviors and improving health statuses. An Internet-based CDSMP was developed to reach additional chronic-disease patients. OBJECTIVES We sought to determine the efficacy of the Internet-based CDSMP. DESIGN We compared randomized(More)
OBJECTIVE To determine the efficacy of an Internet-based Arthritis Self-Management Program (ASMP) as a resource for arthritis patients unable or unwilling to attend small-group ASMPs, which have proven effective in changing health-related behaviors and improving health status measures. METHODS Randomized intervention participants were compared with usual(More)
OBJECTIVE To produce Spanish versions of common arthritis outcome measures: the Health Assessment Questionnaire (HAQ) Disability Scale, the Center for Epidemiologic Studies Depression Scale (CES-D), the Medical Outcomes Study (MOS) Pain Severity Scale, the Arthritis Self-Efficacy Scale for Pain and Other Symptoms (with the addition of 2 new items), the(More)
BACKGROUND Given the high health care utilization, limited evidence for the effectiveness of back pain interventions, and the proliferation of e-mail health discussion groups, this study seeks to determine if the Internet can be used to improve health status and health care utilization for people with chronic back pain. METHODS Randomized controlled(More)
BACKGROUND In light of health disparities and the growing prevalence of chronic disease, there is a need for community-based interventions that improve health behaviors and health status. These interventions should be based on existing theory. OBJECTIVE This study aimed to evaluate the health and utilization outcomes of a 6-week community-based program(More)
OBJECTIVE Both the Arthritis Self-Management Program (ASMP) and the generic Chronic Disease Self-Management Program (CDSMP) have been shown to be successful in improving conditions in patients with arthritis. This study compared the relative effectiveness of the 2 programs for individuals with arthritis. METHODS Patients whose primary disease was(More)