Search PubMed⌕ Search

Biomedical subjects

L A Jason

Publications and source records attributed to L A Jason.

At least 55 records · Page 3Linked to original sources
PubMed1995

Estimating rates of chronic fatigue syndrome from a community-based sample: a pilot study.

Most of the Chronic Fatigue Syndrome (CFS) epidemiological studies have relied on physicians who refer patients having at least six months of chronic fatigue and other symptoms. However, there are a number of potential problems when using this method to derive prevalence statistics. For example, some individuals with CFS might not have the economic resources to access medical care. Other individuals with CFS might be reluctant to use medical personnel, particularly if they have encountered physicians skeptical of the authenticity of their illness. In addition, physicians that are skeptical of the existence of CFS might not identify cases. In the present pilot study, a random community sample (N = 1,031) was interviewed by telephone in order to identify and comprehensively evaluate individuals with symptoms of CFS and those who self-report having CFS. Different definitions of CFS were employed, and higher rates (0.2%) of CFS were found than in previous studies. Methodological benefits in using more rigorous epidemiological methods when estimating CFS prevalence rates are discussed.

Adolescent↗
PubMed1995

Twelve-step program use among Oxford House residents: spirituality or social support in sobriety?

Oxford House is a self-help, self-governed, democratic communal-living environment for recovering alcoholics and polysubstance abusers. In this study, 134 male residents (M age = 34 years old) were personally interviewed on their recovery process and, in particular, on their experience with 12-step programs such as Alcoholics Anonymous (AA). Most residents (76%) reported they attended weekly AA meetings to assist in their recovery, mainly to acquire effective techniques to maintain sobriety (72%). Many AA attendees (43%) claimed no sense of spirituality prior to joining AA, and for most of these men (71%), attendance at weekly meetings was not motivated by "spirituality" aspects of the program. In contrast, the majority of residents (53%) attending weekly AA meetings claimed that a sense of fellowship with similar recovering others was their reason for program involvement. It appears that among men living in a communal setting with other recovering addicts, the need for social support for sobriety from similar others continues beyond the confines of their residence.

Adult↗
PubMed1994

A follow-up of a media-based, worksite smoking cessation program.

Described an examination of data collected 2 years following the onset of a media-based, worksite smoking cessation intervention. Thirty-eight companies in Chicago were randomly assigned to one of two experimental conditions. In the initial 3-week phase, all participants in both conditions received self-help manuals and were instructed to watch a 20-day televised series designed to accompany the manual. In addition, participants in the group (G) condition received six sessions emphasizing quitting techniques and social support. In the second phase, which continued for 12 months, employees in G participated in monthly peer-led support groups and received incentives, while participants in the nongroup (NG) condition received no further treatment. Twenty-four months after pretest, 30% of employees in G were abstinent compared to only 19.5% in NG. This study is one of the few experimentally controlled worksite smoking cessation interventions to demonstrate significant program differences 2 years following the initial intervention.

Employment↗
PubMed1994

Analysis of clustered data in community psychology: with an example from a worksite smoking cessation project.

Although it is common in community psychology research to have data at both the community, or cluster, and individual level, the analysis of such clustered data often presents difficulties for many researchers. Since the individuals within the cluster cannot be assumed to be independent, the use of many traditional statistical techniques that assumes independence of observations is problematic. Further, there is often interest in assessing the degree of dependence in the data resulting from the clustering of individuals within communities. In this paper, a random-effects regression model is described for analysis of clustered data. Unlike ordinary regression analysis of clustered data, random-effects regression models do not assume that each observation is independent, but do assume data within clusters are dependent to some degree. The degree of this dependency is estimated along with estimates of the usual model parameters, thus adjusting these effects for the dependency resulting from the clustering of the data. Models are described for both continuous and dichotomous outcome variables, and available statistical software for these models is discussed. An analysis of a data set where individuals are clustered within firms is used to illustrate features of random-effects regression analysis, relative to both individual-level analysis which ignores the clustering of the data, and cluster-level analysis which aggregates the individual data.

Cluster Analysis↗
PubMed1994

A comprehensive multi-media program to prevent smoking among black students.

Much research has been done in developing and implementing smoking prevention programs; however, few studies have focused on urban Black populations. In November of 1989, a comprehensive prevention program was implemented to decrease the incidence of new smokers within the adolescent population in a Black community. The program combined a school-based curriculum with a comprehensive media intervention. All components of the program were financed by business leaders from the targeted community. There were two experimental conditions: one group participated in a school-based intervention and were prompted to participate in a multi-media intervention and the other group had access to the multi-media intervention; however, they were not prompted to participate. A key finding was that the rate of smoking decreased for all children involved in the intervention. The authors present a model that can be employed to prevent other high-risk behaviors within the Black population.

Adolescent↗
PubMed1993

Prevalence of chronic fatigue syndrome-related symptoms among nurses.

Chronic Fatigue Syndrome is an illness that is characterized by debilitating fatigue and a group of other related symptoms. Few epidemiological studies have been conducted, and none have focused on a nursing population. The present study is the first to assess the prevalence of Chronic Fatigue Syndrome-related symptoms in a sample of nurses. Demographic characteristics, symptoms, and possible prevalence rates are presented and discussed. When using both narrow and more inclusive criteria to define this symptom complex, higher rates of this disorder were found than in previous epidemiological studies. The implications of these findings are discussed.

Adult↗
PubMed1992

Validating a brief Pupil Evaluation Inventory.

A shortened version of the Pupil Evaluation Inventory (PEI) was evaluated. The shortened version consists of nine items and was administered to 381 third-, fourth-, and fifth-graders in Chicago area Catholic schools. A factor analysis revealed the same factor structure as the original measure. Correlations with other sociometric ratings and the Achenbach Teacher Report Form were moderate to strong. A series of ANOVAs was used to compare the factors of the PEI to the five social status groups calculated from a peer nominations measure, and significant differences were found. Rejected children received higher scores on Aggression and Withdrawal than any other group, and popular children scored significantly higher on Likability.

Aggression↗
PubMed1991

Active enforcement of cigarette control laws in the prevention of cigarette sales to minors.

OBJECTIVE: To assess the effect that cigarette legislation would have on reducing merchant sales rates of cigarettes to minors and the affect on adolescent smoking behavior. DESIGN: Observational survey of merchant selling behaviors and adolescent smoking habits before and after passage of legislation. SETTING: The setting for the merchant survey was Woodridge, Ill (population 25,200), a suburban community of Chicago. The surveys were distributed to adolescents in the local junior high school. PARTICIPANTS: Convenience sample of both merchants and adolescent students. INTERVENTION: Passage of community antismoking legislation. MAIN OUTCOME MEASURES: Percentage of stores selling cigarettes to minors in Woodridge and percentage of students who had experimented with cigarettes or were regular smokers. RESULTS: Merchant sales rates in Woodridge decreased from a baseline of 70% before legislation to less than 5% in 1.5 years of compliance checking after legislation. Student surveys showed that the rates of cigarette experimentation and regular use of cigarettes by adolescents were reduced by over 50%. CONCLUSION: Cigarette control laws can be effective in significantly reducing the rate of cigarettes sold by merchants and rates of cigarette use by adolescents. Key elements of successful legislation implementation are consistent compliance checking and heightened community awareness of the problems and prevalence of adolescent smoking.

Adolescent↗
PubMed1990

A televised, self-help, cigarette smoking cessation intervention.

A televised, self-help cigarette smoking cessation intervention was conducted and evaluated. During the 20-day program, reports were broadcast daily on the evening news programs of the local affiliate station of a national television network. Two samples of smokers who requested self-help manuals were interviewed by telephone immediately following the conclusion of the program and again 3 months later concerning their demographic characteristics, participation in the program, and smoking and quitting experiences. In one sample heavier smokers who expressed a greater desire to quit were more likely to participate in the program and, at the three-month followup, 21% reported being abstinent compared to 10% of those who did not participate. Smokers in the other sample were invited to attend three weekly support meetings during the program. More of those who attended meetings (35%) reported quitting during the program than those who did not attend (23%), but this difference did not persist for 3 months. A greater percentage of the meeting sample (27%) than the other sample (21%) reported abstinence initially, but this difference did not persist for three months either. Intervention outcomes are compared with several standards.

Adult↗
PubMed1990

A social stress model of substance abuse.

The social stress model provides a framework for detecting protective factors that may contribute to adolescents' resiliency when confronted with compelling influences to engage in substance abuse. Parameters of the model were tested in 2 urban high school samples (N = 124) of Black (78%), White (16%), and Hispanic (6%) adolescents aged 12-14 years. Pretest and posttest measures, designed to detect the relative influence of stress, social networks, social competencies, and community resources on levels of students' usage, were completed at the beginning and end of the school year. The parameters of the model, estimated using LISREL7, indicated that the pathway from family characteristics to usage and from assertion to usage were significant. The paths from the remaining hypothesized variables were not significant. Implications for the design of prevention programs that facilitate youths' resiliency are discussed.

Adolescent↗
PubMed1990

Incentives and competition in a worksite smoking cessation intervention.

We evaluated a worksite smoking cessation program that employed multicomponents including support groups, incentives, and competition. The combination of incentives and other components increased participation rates to over 80%. Forty-two percent of smokers were abstinent at six months, compared to 13 percent of a control group (difference 29 percent, 95% CI 9, 49).

Adult↗
PubMed1989

A worksite smoking cessation intervention involving the media and incentives.

This study evaluated an attempt at 38 workplaces to help employees stop or reduce their levels of smoking. In past research, worksite support groups, in combination with a media smoking cessation program and self-help manuals, were found to be effective in helping employees quit smoking. Unfortunately, recidivism was found at the follow-up evaluations. The present study replicated the results of the previous worksite smoking cessation program with support groups, a television intervention, and self-help manuals. At this postpoint, 42% of employees provided groups plus incentives were abstinent compared to only 15% who were only provided self-help materials. An important difference in this study was that there were also monthly follow-up support groups and incentives. Work settings can be a source of stress and conflict, which can precipitate relapse. At a 12-month follow-up, 26% of those participants who were provided support and incentives were abstinent compared to 16% who were only provided the self-help materials.

Adult↗
PubMed1989

Factors in smoking cessation among participants in a televised intervention.

This paper analyzes factors associated with smoking cessation during a 1-year period following a televised, self-help intervention among a sample of smokers who registered and participated in the program. Factors examined include readiness to quit smoking, extent of use of self-help materials, degree of exposure to the televised intervention, and environmental support for quitting from within the smoker's household. Behavioral response immediately following the intervention appeared to persist over the year of observation. Of those who reported stopping smoking immediately following the intervention, fewer than half (about 10% of the total sample that was followed) were continuously abstinent at 12 months. The results indicate that environmental support when the individual is attempting to quit smoking is very important in differentiating between those who successfully quit and those who attempt but fail to sustain their abstinence. The results also suggest that an approach combining television and self-help may reach large populations of smokers and induce a substantial number to quit and remain abstinent.

Chicago↗
PubMed1989

One year follow-up of the Chicago televised smoking cessation program.

We compared the relative effectiveness of four different conditions of self-help and social support provided to people attempting to quit smoking in conjunction with a televised cessation program: Smokers ready to quit were able to request written manuals from hardware stores to accompany a televised program. At worksites we provided the written manual to all workers. At a random half of the worksites, we also provided training to discussion leaders who subsequently led discussions among smokers attempting to quit with the program. At health maintenance organization sites we invited smokers who had requested program materials to participate in similar group discussions at health centers. In this paper we report one year follow-up results for the above four groups and compare them with previously reported results of a self-help manual alone. Results for the television plus manual condition were better than those of past studies (25 percent nonsmoking prevalence and 10 percent continuous cessation one year after the program) and considerably better than the manual alone. None of the other conditions designed to supplement the manual plus television produced better long-term outcomes; we explore the reasons for this. The program did encourage and help over 50,000 Chicago smokers to attempt quitting with the American Lung Association manual, 100 times as many as would have done so without the televised program. At least 15 other similar programs implemented since 1984 multiply this effect.

Adult↗
PubMed1988

Firearm violence and the effects of gun control legislation.

Two gun control laws designed to reduce different types of violent crimes were evaluated. In 1981, East St. Louis, IL, imposed stricter penalties for individuals who carry firearms outside their homes for protection (individuals could keep firearms in their homes). This law had only a temporary impact in reducing firearm use in assaults and robberies. In Evanston, IL, a slightly different approach was taken with legislation that banned handguns in the entire city (i.e., individuals could not keep handguns within their homes). A temporary reduction in firearm assaults occurred a few months before the gun law took effect. The implications of these findings are discussed.

Crime↗