Hypnotic Tactile Anesthesia: Psychophysical and Signal-Detection Analyses.

Two experiments that studied the effects of hypnotic suggestions on tactile sensitivity are reported. Experiment 1 found that suggestions for anesthesia, as measured by both traditional psychophysical methods and signal-detection procedures, were linearly related to hypnotizability. Experiment 2 employed the same methodologies in an application of the real-simulator paradigm to examine the effects of suggestions for both anesthesia and hyperesthesia.

The epidemiology of hepatitis C in a Canadian Indigenous population.

Background: An estimated 1% to 1.9% of North Americans are infected with the hepatitis C virus (HCV). Although Indigenous peoples are considered to bear the highest burden, there are only limited data regarding the demographic features and epidemiology of hepatitis C in this population.

A population-based study of the epidemiology of hepatitis C in a North American population.

Background & Aims: Chronic hepatitis C virus (HCV) infection is a major public health problem with approximately 3% of the world's population thought to be chronically infected. However, population-based data regarding HCV incidence rates, prevalence, residence, age, and gender distributions within North America are limited. We aimed at providing a detailed descriptive epidemiology of HCV infection in a North American population with a focus on time trends in incidence rates and prevalence of newly diagnosed HCV infection since 1991, the time when laboratory testing for HCV infections became first available.

Information needs and coping styles of primary family caregivers of women following breast cancer surgery.

Purpose/objectives: To determine the information needs and unmet needs of primary family caregivers of women with breast cancer, their informational coping styles, and the relationships among needs, coping styles, and caregiver and patient variables in the first three weeks after surgery.

Design: Descriptive, correlational survey.

Setting: Three surgical inpatient units at one private and two public hospitals in Perth, Western Australia.

Beyond convention: describing complementary therapy use by women living with breast cancer.

Using a descriptive survey design, 52 women living with breast cancer were interviewed to explore their use of complementary therapy and the relationships between complementary therapy use and key demographic variables and health beliefs. Sixty-seven percent of the women reported complementary therapy use, with meditation/relaxation therapies, vitamins and spiritual healing being the three most frequently reported treatments. Women using complementary therapies were more likely to have completed post-secondary education than women using only conventional medical treatment (chi 2 = 7.

Reports of information and support needs of daughters and sisters of women with breast cancer.

The aim of this study was to describe the information and support needs of women who have primary relatives with breast cancer. The Information and Support Needs Questionnaire (ISNQ) was developed and revised from previous qualitative and pilot studies. The ISNQ addressed concepts of the importance of, and the degree to which, 29 information and support needs related to breast cancer had been met.

Paradigms of health and disease: a framework for classifying and understanding complementary and alternative medicine.

The number of complementary and alternative medicines (CAMs) being utilized by North America health care consumers is growing at an astounding rate. There is a need by both health care providers and consumers to categorize CAM in order to make meaningful comparisons and informed decisions on their use. Four paradigms of health and illness are proposed that classify medicines according to the basic assumptions of health and disease associated with each medicine.

Predicting the trajectory of will to live in terminally ill patients.

Will to live has been shown to vary considerably during the final course of a terminal illness. The goal of this study was to identify illness-related and demographic variables predicting will to live among dying patients. Subjects were 168 patients with cancer who were admitted for palliative care.

A smoking reduction and cessation program with registered nurses: findings and implications for community health nursing.

A smoking reduction and cessation program was implemented with registered nurses in 3 Canadian provinces. Nurses (n = 117) participated in either an 8-week group or self-directed program using a resource specifically designed for nurses. Questionnaires were administered prior to and at the end of the 8-week interventions and at 6 and 12 months postintervention.

Prognostic awareness and the terminally ill.

The authors rated patients who were in advanced stages of cancer and in their final few weeks of life on their level of awareness of their medical prognosis (N = 200, mean age = 71.0 years). The authors measured prognostic awareness with a semistructured interview, dividing patients into those acknowledging No Awareness, Partial Awareness, and Complete Awareness.

Information needs of husbands of women with breast cancer.

Purpose/objectives: To identify and measure the information needs of the husbands of women newly diagnosed with breast cancer and to determine the extent to which these needs are being met.

Design: Descriptive survey.

Setting: Five surgical inpatient units at four urban hospitals in Winnipeg, Manitoba, Canada.

Measuring the information needs of husbands of women with breast cancer: validity and reliability of the Family Inventory of Needs--husbands.

Purpose/objectives: A two-phase study was undertaken to test the Family Inventory of Needs--Husbands (FIN-H), a tool designed to measure the information needs of husbands of women with breast cancer and the extent to which these needs are met.

Design: Methodologic survey.

Samples: Phase I: a panel of 6 husbands; phase II: 84 husbands of women with breast cancer.

Reliability of the Manitoba Mental Health Management Information System for Research.

Objectives: To determine the accuracy of data contained in Manitoba's Mental Health Management Information System (MHMIS) as compared with client charts and to determine which factors influence completeness and accuracy.

Methods: Data on diagnosis, open date and close date, demographic information, and contact information were obtained from client charts and compared with data extracted from the MHMIS. Semistructured interviews were conducted with individuals who contribute data to the MHMIS.

Intensive use of mental health care.

Objective: To describe the profile of the intensive use of mental health services over a 4-year period in a population of 1.1 million people.

Methods: Data obtained from computerized hospital separation records and physician reimbursement claims were combined to form patient-based histories of mental health care utilization.

Population health and health care use: an information system for policy makers.

University-based researchers in Manitoba, Canada, have used administrative data routinely collected as part of the national health insurance plan to design a population-based health information system (POPULIS). Decision-makers can use this system to make critical comparisons across regions of residents' health status, socioeconomic risk characteristics, and use of hospitals, nursing homes, and physicians. Policy makers have found this information system useful in providing answers to questions they are often asked: Which populations need more physician services? Which need fewer? Are high-risk populations poorly served or do they have poor health outcomes despite being well served? Does high utilization represent overuse or is it related to high need? Three commentaries follow.

Utilization of physician resources for ambulatory care.

This article describes the utilization of ambulatory physician services by Manitoba residents during the fiscal year 1991/1992. Care was assigned to the patient's residence in one of eight administrative regions, whether the care was received in or out of the region of residence. Disparities in physician supply across regions did not correspond with differences in the use of services: the Winnipeg region had twice as many physicians per 1000 residents as the largely rural non-Winnipeg regions and was home to most specialists.

A population-based health information system.

The authors introduce the Population Health Information System, its conceptual framework, and the data elements required to implement such a system in other jurisdictions. Among other innovations, the Population Health Information System distinguishes between indicators of health status (outcomes measures) and indicators of need for health care (socioeconomic measures of risk for poor health). The system also can be used to perform needs-based planning and challenge delivery patterns.

Should antibiotic prophylaxis be used routinely in clean surgical procedures: a tentative yes.

Background: The incidence of surgical site infection (SSI) after clean surgical procedure has traditionally been regarded as too low for routine antibiotic prophylaxis. But we now know that host factors may increase the risk of SSI to as high as 20%. We assessed the value of prophylactic cefotaxime in patients stratified for risk of SSI in a randomized double-blind trial.

Hypnotizability and mental imagery.

Two studies investigated the relationship between mental imagery and hypnotizability, with the imagery measures administered in a hypnotic context. The correlation of hypnotizability with vividness of imagery was significant in one study, but not in the other; both correlations were significantly lower than that obtained between hypnotizability and absorption, assessed in the same samples. The correlations with control of visual imagery, and with various measures of the vividness of motor imagery, were even lower and rarely significant.

The psychological unconscious. Found, lost, and regained.

In response to Greenwald's article on contemporary research on unconscious mental processes, the authors address three issues: (a) the independence of much recent research and theory from psychodynamic formulations; (b) the broad sweep of the psychological unconscious, including implicit perception, memory, thought, learning, and emotion; and (c) the possibility that the analytic power of unconscious processing may depend both on the manner in which mental contents are rendered unconscious and the manner in which they are to be processed.

Absorption, openness to experience, and hypnotizability.

Absorption, a correlate of hypnotizability, is conceptually related to openness to experience. Study 1 found no evidence that gender moderated the correlation between absorption and hypnotizability, or of nonlinear trends. Study 2 showed that openness was factorially complex, and that absorption was related to imaginative involvement, but not to social-political liberalism.

Conditioning in the unattended left ear.

Two experiments demonstrated that a conditioned emotional response can both be established and arouse responses without awareness in a dichotic paradigm. Right handed male subjects performed a complex verbal task presented to the right ear, while patterns of musical notes were presented to the left ear. For experimental subjects, one of the patterns was always followed by an aversive noise in the left ear; the noises were presented at random times to control subjects.

A coded study of antitumor immunity to human lung cancer assayed by tube leukocyte adherence inhibition.

The present study was undertaken to evaluate the specificity of antitumor immunity to human lung cancer, measured by an in vitro assay--tube leukocyte adherence inhibition (LAI). We standardized and monitored the putative tumor antigen activity of the extracts by testing leukocytes from controls and patients with lung cancer in the Montreal General Hospital. A specific antitumor response to a lung cancer antigen was detected with coded leukocytes from 56% (20 out of 36) of patients with epidermoid lung cancer.