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The NHI chess game.

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National Health Insurance, United States↗

[The Checklist for Evaluation of Somatic Symptoms (CHESS). Its use in anxious and depressive pathology. Factor structure].

The CH.E.S.S. is a new inventory for the assessment of somatic symptoms and complaints. Initialy it included 57 items (43 somatic complaints, 12 neurological signs and 2 "other symptoms"). The CH.E.S.S. was scored before treatment on two groups of patients (133 anxious and 133 depressed) with no schizophrenic or organic symptomatology. 71 somatic complaints or symptoms were identified. A principal component analysis with a subsequent Varimax rotation yelded 25 factors with 18 of clinical significance. 12 factors significantly discriminate between the two groups. Seven factors (21 items) have higher scores in depressed patients: sleep and general somatic disorders, 2) general impairment of intellectual functioning, 3) neurological, 4) neuro-muscular hypo-excitability, 5) lower limbs oedema-amimia, 6) and 7) digestive. Five factors (18 items) have higher scores in anxious patients: 1) and 2) autonomic hyperactivity, 3) neuro-muscular hyper-excitability, 4) digestive, 5) micturition disorders with limb paresthesias. According to these results the 67 items new version of the check-list (CH.E.S.S. 82) includes 51 somatic complaints or symptoms and 16 neurological signs.

Anxiety Disorders↗

The use and impact of a computer-based support system for people living with AIDS and HIV infection.

CHESS (the Comprehensive Health Enhancement Support System) is an interactive, computer-based system to support people facing AIDS/HIV Infection and other health-related crises or concerns. CHESS provides information, referral to service providers, support in making tough decisions and networking to experts and others facing the same concerns. CHESS is designed to improve access to health and human services for people who would otherwise face psychological, social, economic or geographic barriers to receiving services. CHESS has been evaluated in a random-assignment study with over 200 men and women living with AIDS and HIV infection. When CHESS was placed in subjects' homes for 3-6 months, use of CHESS was extremely heavy, with the average subject using CHESS 138 times for 39 hours. Compared with a control group which did not receive CHESS, subjects who used CHESS reported significantly higher quality of life in several dimensions, including social support and cognitive functioning. Users also reported significant reductions in some types of health care costs, especially inpatient services (hospitalizations). All segments of the study population used and benefited from CHESS, including women, minorities and those subjects with lower levels of education. Thus, CHESS appears to be an effective means of delivering education and support to the diverse populations which are affected by AIDS and HIV infection.

Acquired Immunodeficiency Syndrome↗

The quality of interactive computer use among HIV-infected individuals.

This study examined how HIV-infected individuals used an interactive health software package called CHESS (Comprehensive Health Enhancement Support System). CHESS packages information and support in a variety of ways; the research examined how a subset of users whose posttest scores in a larger randomized trial showed significant improvement in quality of life compared on use patterns of CHESS with those who did not improve. The evidence presented here points to the nature of CHESS use more than it does to the amount of CHESS use. Those whose quality of life improved were among the most involved in their use of CHESS information tools. That is, even though Discussion Group accounted for the majority of all CHESS uses and time spent with the system, total use and Discussion Group use appeared less important than use of the information tools, especially if that use was at least somewhat sustained and involved.

Adult↗

Hemispheric specialization for skilled perceptual organization by chessmasters.

The right cerebral hemisphere may be relatively specialized for parsing simple visual stimuli according to default rules, such as the Gestalt laws of perceptual organization, whereas the left cerebral hemisphere may be relatively specialized for overriding such default rules. We extend this model to 'semantically rich domains' by performing a divided-visual-field experiment on 16 chessmasters. Such subjects are able to recall and recognize complex chess positions by chunking the basic elements of the stimuli--the chess pieces--into meaningful groupings according to certain rules that are specific to the semantic structure of the chess domain. We show that the right hemisphere is superior to the left at parsing according to the default rules of chess chunking, but that the left hemisphere is superior to the right at grouping pieces together in violation of those rules. These results suggest that the right hemisphere is better able to acquire and apply new sets of default parsing rules for specific contexts. We conclude, consistent with other neuropsychological evidence, that the right hemisphere is critical for chess skill.

Adolescent↗

Impact of a patient-centered, computer-based health information/support system.

BACKGROUND: Consumer health information systems potentially improve a patient's quality of life and activate patient self-care. OBJECTIVES: Test a computerized system (CHESS: Comprehensive Health Enhancement Support System), which, in this application, provided HIV-positive patients with information, decision support, and connections to experts and other patients. Would patients given in-home access to computers use the system, improve their quality of life, reduce health-risk behaviors, and use medical services more efficiently? RESEARCH DESIGN: Randomized controlled trial: CHESS computers in experimental subjects' homes in Madison or Milwaukee, Wisconsin, for 3 or 6 months; controls received no intervention. Subjects were compensated for self-report surveys completed before, during, and after CHESS installation. SUBJECTS: Of 204 HIV-positive patients recruited (90% male, 84% white, average education some college, and 65% experiencing HIV-related symptoms), 90% completed the study. MEASURES: Self-reports of quality of life and frequency and duration of use of medical services. RESULTS: CHESS was used daily with little difference between demographic subgroups. While CHESS was in the home, its users reported quality-of-life improvements: active life, negative emotions, cognitive function, social support, and participation in health care. They also reported spending less time during ambulatory care visits, making more phone calls to providers, and experiencing fewer and shorter hospitalizations. CONCLUSIONS: A computer-based personal health support system can improve a patient's quality of life and promote more efficient use of health care.

Adult↗

Effect of computer support on younger women with breast cancer.

OBJECTIVE: Assess impact of a computer-based patient support system on quality of life in younger women with breast cancer, with particular emphasis on assisting the underserved. DESIGN: Randomized controlled trial conducted between 1995 and 1998. SETTING: Five sites: two teaching hospitals (Madison, Wis, and Chicago, Ill), two nonteaching hospitals (Chicago), and a cancer resource center (Indianapolis, Ill). The latter three sites treat many underserved patients. PARTICIPANTS: Newly diagnosed breast cancer patients (N = 246) under age 60. INTERVENTIONS: Experimental group received Comprehensive Health Enhancement Support System (CHESS), a home-based computer system providing information, decision-making, and emotional support. MEASUREMENTS AND MAIN RESULTS: Pretest and two post-test surveys (at two- and five-month follow-up) measured aspects of participation in care, social/information support, and quality of life. At two-month follow-up, the CHESS group was significantly more competent at seeking information, more comfortable participating in care, and had greater confidence in doctor(s). At five-month follow-up, the CHESS group had significantly better social support and also greater information competence. In addition, experimental assignment interacted with several indicators of medical underservice (race, education, and lack of insurance), such that CHESS benefits were greater for the disadvantaged than the advantaged group. CONCLUSIONS: Computer-based patient support systems such as CHESS may benefit patients by providing information and social support, and increasing their participation in health care. These benefits may be largest for currently underserved populations.

Adult↗

Use and Impact of eHealth System by Low-income Women With Breast Cancer.

This article is the second of a two-part series reporting on a population-based study intended to use an eHealth system to examine the feasibility of reaching underserved women with breast cancer (Gustafson, McTavish et al., Reducing the digital divide for low-income women with breast cancer, 2004; Madison Center for Health Systems Research and Analysis, University of Wisconsin; Comprehensive Health Enhancement Support System [CHESS]) and determine how they use the system and what impact it had on them. Participants included women recently diagnosed with breast cancer whose income was at or below 250% of poverty level and were living in rural Wisconsin (n = 144; all Caucasian) or Detroit (n = 85; all African American). Because this was a population-based study all 229 participants received CHESS. A comparison group of patients (n = 51) with similar demographics was drawn from a separate recently completed randomized clinical trial. Use rates (e.g., frequency and length of use as well as type of use) as well as impact on several dimensions of quality of life and participation in health care are reported. Low-income subjects in this study logged on and spent more time on CHESS than more affluent women in a previous study. Urban African Americans used information and analysis services more and communication services less than rural Caucasians. When all low-income women from this study are combined and compared with a low-income control group from another study, the CHESS group was superior to that control group in 4 of 8 outcome variables at both statistically and practically significant levels (social support, negative emotions, participation in health care, and information competence). When African Americans and Caucasians are separated the control group's sample size becomes 30 and 21 thus reducing power. Statistical significance is retained, however, in all four outcomes for Caucasians and in two of four for African Americans. Practical significance is retained for all four outcomes. We conclude that an eHealth system like CHESS will be used extensively and have a positive impact on low-income women with breast cancer.

Breast Neoplasms↗