The Household Risk Perception instrument and the Self-Efficacy in Environmental Risk Reduction instrument: psychometric testing using principal component analysis.

AIM: To report the psychometric testing of the Household Risk Perception and Self-Efficacy in Environmental Risk Reduction instruments using principal components analysis. BACKGROUND: There are limited instruments available to test household risk perception and self-efficacy related to environmental health behaviours. The Household Risk Perception instrument was developed to measure personal perceptions of household environmental health risks. The Self-Efficacy in Environmental Risk Reduction instrument was designed to measure caregivers' confidence in taking steps to reduce household risks. DESIGN: An exploratory analysis of previous data was undertaken. METHOD: Baseline data from 235 caregivers enrolled in a randomized clinical trial testing a healthy housing intervention were collected between 2006-2009. Principal components analysis was used to determine principal components from measured responses to each instrument. RESULTS: Components were explored and compared to constructs used to design the original instruments. A five-component structure showed the simplest solution and explained 65% of variance in the Household Risk Perception analysis. Cronbach's alpha values indicated satisfactory internal consistency for four of five identified components. Risk perception varied according to available sensory input of the specific risk. A four-component structure explained 64% of the variance in the Self-Efficacy in Environmental Risk Reduction analysis. Cronbach's alpha values were satisfactory. Items mapped to steps in an action-oriented process vs. agent-specific actions. Results from both analyses suggest that environmental tobacco smoke is perceived differently than other household risks. CONCLUSION: Previously, both instruments relied on item reliability and content validity testing. This study provides a basis for further instrument revision and theoretical testing.

Descriptive analysis of the respiratory health status of persons exposed to Libby amphibole asbestos.

OBJECTIVE: Describe respiratory health and quality of life in persons exposed to Libby amphibole asbestos (LAA) contaminated vermiculite. DESIGN: Cross-sectional descriptive. SETTING: Asbestos-related disease clinic in Libby, Montana USA. PARTICIPANTS: 329 individuals exposed to LAA; mostly men, married, between 50 and 69 years; two-thirds lived in the surrounding county; one-third lived elsewhere in the state and USA. PRIMARY OUTCOME MEASURES: Chest radiograph (CXR), pulmonary function data and the St George Respiratory Questionnaire (SGRQ). RESULTS: Exposure categories included vermiculite workers=7.6%; family/household contact of vermiculite worker=32%; and environmental exposure only=60%. Of the participants, 55% had only pleural abnormalities; 5.4% had only interstitial abnormalities; nearly 21% had both abnormalities and 18% had no lung abnormality on chest x-ray. Mean forced vital capacity (FVC) 95.3% (SD=18.7); forced expiratory volume (FEV(1)) mean 87% (SD=20.2); ratio of FEV1(1)/FVC 95.5% (SD=12.0); and diffusing capacity (DLCO) of 83% (SD=21.7) of the percent predicted. The mean total SGRQ (38.5; SD=22.1) indicated a lower quality of life than healthy persons and persons with other chronic conditions. SGRQ subscale means were Symptoms 52.1 (SD=24.9), activity 49.4 (SD=26.9) and impacts 27.5 (SD=21.9). Participants with normal CXR differed significantly from those with both interstitial and pleural abnormalities on total, activity and impacts scores. For activity alone, subjects with normal CXR differed significantly from those with pleural disease; no differences were found for those with interstitial disease. Significant findings were found for smoking history across all pulmonary measures, and for exposure status, radiographic findings, age and gender for select pulmonary parameters. Subjects with any smoking history had significantly worse average total and subscale scores on the SGRQ. CONCLUSIONS: Of 329 persons exposed to LAA, the majority (182) had pleural abnormalities identified on CXR. SGRQ scores for persons with abnormalities (pleural, interstitial or both) (269) differed significantly from those with a normal CXR.

Determining satisfaction with access and financial aspects of care for persons exposed to Libby amphibole asbestos: rural and national environmental policy implications.

Libby, Montana is a Superfund site and epicenter of one of the worst environmental disasters in the USA history in terms of asbestos-related mortality and morbidity. Perceptions of access and financial aspects of care were explored among a national cohort of persons postasbestos exposure and prior to a 2009 Public Health Emergency Declaration. Our findings indicated the Libby cohort was significantly less satisfied with access and financial aspects of care as measured by two PSQ-III scales when compared to an adult, chronically ill patient sample. Participants with higher levels of respiratory morbidity and depression had significantly lower satisfaction scores.

Psychosocial health status of persons seeking treatment for exposure to libby amphibole asbestos.

A cross-sectional exploratory study was conducted to describe the psychosocial health status of persons seeking health care for exposure to Libby amphibole asbestos (LAA). Health indicators including depression, stress, acceptance of illness, and satisfaction with access and financial aspects of care were obtained via electronic and paper-pencil survey. The exposure pathway and demographic data were gleaned from the health record. Of the 386 participants, more than one-third (34.5%) demonstrated significant levels of psychological distress. The oldest group of women had the lowest levels of depression and stress and the highest acceptance of illness. Gender, age, and satisfaction with financial resources were significantly related to depression, stress, and acceptance of illness. Satisfaction with access to care was significant only for stress. No differences in depression, stress, and acceptance of illness were found based on residence, exposure pathway, or insurance status.

Effectiveness of a household environmental health intervention delivered by rural public health nurses.

OBJECTIVES: Parents need meaningful and actionable information if they are to reduce household environmental health risks to their children. To address this issue, we tested the effectiveness of a multi-risk social/cognitive intervention on rural low-income parents' (1) environmental health self-efficacy and (2) stage of environmental health precautionary adoption. METHODS: Biomarker (lead, cotinine) and household samples (carbon monoxide, radon, mold/mildew, and drinking water contaminants) were collected from 235 families (399 adults, 441 children) in Montana and Washington states. Families were randomly assigned to intervention or control groups; intervention families received 4 visits from public health nurses who provided tailored information and guidance to parents; controls received usual and customary public health services. RESULTS: At 3 months, the intervention group had significantly higher scores on (1) all 6 risk-specific self-efficacy subscales (P < .01), (2) general environmental health self-efficacy (P < .001), (3) 5 of 6 risk-specific precaution adoption subscales (P < .05), and (4) general environmental health precaution adoption (P < .001). CONCLUSIONS: The intervention yielded significant improvements in both outcomes. This evidence supported the need for a policy discussion addressing the added value that broadbased public health nurse interventions might bring to children's environmental health.

Rural children's exposure to well water contaminants: implications in light of the American Academy of Pediatrics' recent policy statement.

PURPOSE: Implementing the recent American Academy of Pediatrics' (AAP) policy for annual well water testing will impact pediatric healthcare providers, who will be called upon for advice regarding testing, interpretation, and mitigation. We report findings from a study of low-income rural families' participation in household well water testing. DATA SOURCES: We collected data from 188 rural low-income households inclusive of 320 children under the age of seven. Participating families lived in one of two western U.S. counties and received water from a well with <15 connections. Household water samples and questionnaire data were collected for analysis. CONCLUSIONS: Twenty-seven percent of households tested positive for at least one contaminant, including total coliforms (18%), arsenic (6%), synthetic organic chemicals (6%), nitrates (2%), fluoride (2%), and E. coli (<1%). Eighty-nine percent of households testing positive for total coliforms were positive at re-test. Respondents expressed greatest concern for biological contamination and took multiple precautionary actions, although only 31% had ever tested their water for contaminants. Higher levels of education, income, and age, as well as homeowner status, were significantly associated with previous testing. IMPLICATIONS FOR PRACTICE: Recommendations for communicating abnormal results, mitigating risks, and overcoming logistical challenges are presented.

Barriers and facilitators to the incorporation of environmental health into public health nursing practice.

OBJECTIVES: To describe the environmental health (EH) demands placed on public health nurses (PHNs) as well as the barriers and facilitators to incorporating EH into PHN practice. DESIGN AND SAMPLE: A cross-sectional multimode (Web and pencil/paper) survey was used to collect data from PHNs in 1 rural western state. Research participants included 141 PHNs from a total of 228 survey invitations (61% response). MEASURES: A 39-item questionnaire was developed to measure the frequency of EH demands experienced by PHNs as well as the barriers and facilitators to the incorporation of EH into PHN practice and standard demographics. RESULTS: Significant numbers of PHNs reported less than baccalaureate preparation (29%), suggesting that EH competencies cannot be assumed. PHNs are often asked for basic EH information and cite lack of time and lack of interest on the part of the populations being cared for as barriers to incorporating EH into their practice. Facilitators included free or inexpensive continuing education programs offered via the Internet and additional Internet resources or staff resource people. CONCLUSION: PHNs represent a significant portion of the public health workforce and have implied and explicit mandates to address EH issues in their practice. Resources should be directed toward helping PHNs become better prepared to address the current and future EH needs of populations.

Communicating methylmercury risks and fish consumption benefits to vulnerable childbearing populations.

Methylmercury is a known neurotoxin especially harmful to the fetus, infant, and child. Preventing exposure to this environmental toxin is best accomplished through consumer messages specifically adapted for local populations. Health care providers play an important role in the dissemination of information. The purpose of this article is to review the benefits and risks of fish consumption and identify strategies for presenting effective risk communication messages to vulnerable groups, particularly women of childbearing age.

Incorporating environmental health into nursing practice: a case study on indoor air quality.

More than one-quarter of the global disease burden is attributable to environmental exposures, with children bearing a disproportionate amount of risk. Physiologically and behaviorally, children have unique characteristics that make them vulnerable to environmental contaminants. In particular, indoor environmental exposures, such as carbon monoxide, mold, and radon, have an impact on children's health and well being. A case study based on the experiences of nurses working on the Environmental Risk Reduction through Nursing Intervention and Education study is presented to illustrate multiple exposures children may face in the home environment and the role nurses play in prevention and response. Nurses can improve children's environmental health by providing risk assessments, environmental health education, and referrals to community health nurses and environmental health specialists. Resources on indoor air quality and maintaining a healthy home are provided.

Householder status and residence type as correlates of radon awareness and testing behaviors.

OBJECTIVES: The primary aim of this research was to assess radon awareness and testing across 2 housing types. DESIGN AND SAMPLE: Cross-sectional prevalence study with time trends. National, probabilistic sample of 18,138 and 29,632 respondents from the 1994 and 1998 National Health Interview Surveys, respectively. RESULTS: Odds ratio (OR) estimates confirmed that occupants of single family homes/townhomes were twice as likely to have ever heard of radon (1994: OR=2.18; confidence intervals [CI]=2.01-2.36) (1998: OR=2.26; CI=2.09-2.44) and also more likely to know if their household air had been tested for radon (1994: OR=2.04; CI=1.57-2.65) (1998: OR=1.38; CI=1.19-1.59) as occupants of apartments/condominiums. Time trend analyses revealed that radon awareness improved from 69.4% to 70.7% and home testing among those with knowledge of radon increased from 9.7% to 15.5% over the 4-year period. CONCLUSIONS: Housing type provided fairly stable estimates of radon awareness and testing. Findings demonstrate that housing status may be a useful variable to differentiate risk for radon awareness and testing. Public health nurses should consider their client's housing type when assessing families for environmental risks.

Methylmercury risk and awareness among American Indian women of childbearing age living on an inland northwest reservation.

American Indian women and children may be the most overrepresented among the list of disparate populations exposed to methylmercury. American Indian people fish on home reservations where a state or tribal fishing license (a source of advisory messaging) is not required. The purpose of this study was to examine fish consumption, advisory awareness, and risk communication preferences among American Indian women of childbearing age living on an inland Northwest reservation. For this cross-sectional descriptive study, participants (N=65) attending a Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) clinic were surveyed between March and June 2006. An electronic questionnaire adapted from Anderson et al. (2004) was evaluated for cultural acceptability and appropriateness by tribal consultants. Regarding fish consumption, approximately half of the women surveyed (49%) indicated eating locally caught fish with the majority signifying they consumed medium- and large-size fish (75%) that could result in exposure to methylmercury. In addition, a serendipitous discovery indicated that an unanticipated route of exposure may be fish provided from a local food bank resulting from sportsman's donations. The majority of women (80%) were unaware of tribal or state fish advisory messages; the most favorable risk communication preference was information coming from doctors or healthcare providers (78%). Since the population consumes fish and has access to locally caught potentially contaminated fish, a biomonitoring study to determine actual exposure is warranted.

Rural public health policy models to address an evolving environmental asbestos disaster.

The health-related dangers of asbestos exposure were recognized early in the 20th century when occupational exposure was found to be associated with excess pneumoconiosis among asbestos industry workers. Today, the epicenter for examining the public health effects and the human toll that this toxin has had on a population is located in the rural community of Libby, MT. Rurality and multideterminants of health frame both the history of asbestos-related disease and the service/policy challenges within a community dealing with chronic illness and designation as a Superfund clean-up site. Despite efforts by public health advocates to address the lingering aftermath of an environmental disaster in this community, policy gaps exist that continue to impact the population's health. The purpose of this paper is to describe the history and outcomes of asbestos exposure in a rural community and discuss 3 models that provide public health policy insights related to rural health and health care for a community affected by both a sentinel and ongoing environmental event.

Negotiating three worlds: academia, nursing science, and tribal communities.

PURPOSE: The purpose of this article is to use a cross-cultural model to guide the exploration of common issues and the dynamic interrelationships surrounding entrée to tribal communities as experienced by four nursing research teams. METHOD: Members of four research teams discuss the primary lessons learned about successful strategies and challenges encountered during their projects' early stages. RESULTS: Understanding the cultural values of relationship and reciprocity is critical to the success of research projects conducted in Native American communities. DISCUSSION: Conducting cross-cultural research involves complex negotiations among members of three entities: academia, nursing science, and tribal communities. The lessons learned in these four research projects may be instructive to investigators who have the opportunity to conduct research with tribal communities.

Rural women, technology, and self-management of chronic illness.

The objective of this study was to determine the differences in the psychosocial status of 3 groups of chronically ill rural women participating in a computer intervention. The 3 groups were: intense intervention, less-intense intervention, and control. At baseline and following the intervention, measures were taken for social support, self-esteem, empowerment, self-efficacy, depression, stress, and loneliness. ANCOVA results showed group differences for social support and self-efficacy among the overall group. The findings differed for a vulnerable subgroup, with significant between-group differences for social support and loneliness. It was concluded that a computer-delivered intervention can improve social support and self-efficacy and reduce loneliness in rural women, enhancing their ability to self-manage and adapt to chronic illness.

Health knowledge acquisition by rural women with chronic health conditions: a tale of two Web approaches.

OBJECTIVES: To determine the differences in health knowledge acquisition and the perceived impact on self-management of chronic illness provided by two approaches to providing Web-based information. DESIGN: Repeated-measure questionnaire administered at four time points: baseline, 11, 23 and 53 weeks; a post-computer intervention survey. SETTING AND PARTICIPANTS: One hundred and seventy-six chronically ill women (aged 32-68 years) living in rural areas. MAIN OUTCOME MEASURES: Scores on knowledge questions within repeated measures; participant ratings on perceptions of abilities to self-manage. INTERVENTION: The 22-week computer-based intervention provided online support and health information. Women were randomly assigned to an intense intervention (n = 54), less-intense intervention (n = 58) or control group (n = 64). RESULTS: Both computer intervention groups gained significantly in health knowledge with little differential effect at intervention conclusion or after 6 months, when there was a drop-off in health knowledge retention of about one-third (intense - baseline mean = 0.54, week 23 = 0.69, week 53 = 0.65; less intense - 0.58, 0.68, 0.65). Control remained about the same (0.51, 0.51, 0.53). Using an anova analysis, there was no appreciable difference between intervention groups in perceptions of ability to self-manage illness (intense - mean = 4.02 (on a scale of 1-6), standard deviation = 0.99); less intense - (mean = 3.85, standard deviation = 1.00), t(107) = 0.90, P = 0.37). CONCLUSIONS: A less-intense intervention can be as effective as a more complex, labour-intensive and costly intervention in assisting chronically ill rural women to acquire health knowledge they consider to be moderately helpful in managing their chronic conditions.

Retention in a computer-based outreach intervention for chronically ill rural women.

The study's purpose was to examine retention factors in a computer intervention with 158 chronically ill rural women. After a 22-week intervention, 18.9% of the women had dropped out. A Cox regression survival analysis was performed to assess the effects of selected covariates on retention. Reasons for dropping out were tallied and categorized. Major reasons for dropping out were as follows: lack of time, decline in health status, and nonparticipation in study activities. Four covariates predicted survival time: level of computer skills, marital status, work outside the home, and impact of social events on participants' lives. Retention-enhancing strategies are suggested for implementation.

Complementary therapy and older rural women: who uses it and who does not?

BACKGROUND: Despite the growing use of complementary therapy by consumers in the United States, very little is known about the factors associated with the use of these therapies among older rural women. OBJECTIVE: The aim of this study was to answer the following research question using data from a portion of a larger study: What factors predict the use of complementary therapy among older rural women? METHODS: Data were collected by telephone interview from a random sample of older residents of 19 rural towns in Montana and North Dakota. Interviews were conducted using a guide that included questions about the use of allopathic and complementary healthcare and related issues such as health status, health problems, and reasons for seeking care. A direct logistic regression analysis was performed on the use of complementary or alternative medicine (CAM) as outcome and eight potential predictors. Data from 156 women were included in this analysis. RESULTS: A total of 25.6% (n=40) of the women reported using CAM in the recent past. Rural women most likely to use CAM were those who were fairly well educated, not currently married, and in their early older years. They had one or more significant chronic illnesses and lower health-related quality of life due to emotional concerns. DISCUSSION: By improving the existing understanding of who is or is not likely to use CAM, the results of this study can be used in giving comprehensive care for rural women, including all healthcare practices, self-care and practitioner provided, and complementary and conventional.

Does Dixon's Integrative Environmental Health Model inform an understanding of rural parents' perceptions of local environmental health risks?

A qualitative study of parents' perceptions of local environmental health risks was conducted to assess the fit between concepts from Dixon's Integrative Environmental Health Model (DIEH model) and field-generated data. This research was part of a prospective study addressing environmental exposures of rural low-income children. Home visit data from 11 parents were analyzed (1) thematically and (2) according to DIEH concepts. These complementary analyses allowed the researchers to examine perceptions that were congruent with or diverged from the DIEH model. Findings revealed that participants were concerned about children's exposure to pathogenic molds and cigarette smoke and felt uninformed about risks and prevention strategies. Barriers to preventive actions included families' lack of time and a disinterest in brochures. Participants reported being "stuck" in substandard housing by poverty and family demands. They expressed concern about risks, but were unsure "what to worry about." Results provided the researchers with confidence that the DIEH model aligned with participants' cognitive constructions of risk. As a result, the DIEH model was incorporated into the conceptualization for the clinical trial phase of the study. This type of check between a theoretical approach and field data can be a helpful intermediate step for researchers involved in multiyear studies.

Rural parents' perceptions of risks associated with their children's exposure to radon.

OBJECTIVES: To examine the level of awareness of radon issues, correlates of elective testing behaviors, and the accuracy of risk perception for radon exposures among rural residents receiving public health services. DESIGN: A cross-sectional design was used in which questionnaire data and household analytic data for radon levels were collected from a nonprobabilistic sample of rural households. SAMPLE: Thirty-one rural households with 71 adults and 60 children participated in the study. Primary household respondents were female (100%), Caucasian (97%), and primarily (94%) between 21 and 40 years of age. MEASUREMENT: Questionnaire data consisted of knowledge and risk perception items about radon and all homes were tested for the presence of radon. RESULTS: The prevalence of high airborne radon (defined as> or=4 pCi/l) was 32%. More than a third of the sample underestimated the seriousness of health effects of radon exposure, 39% disagreed that being around less radon would improve the long-term health of their children, and 52% were unsure whether radon could cause health problems. After adjusting for chance, only 21% of the subjects correctly understood their risk status. CONCLUSIONS: This study provides preliminary evidence that low-income rural citizens do not understand their risk of radon exposure or the deleterious consequences of exposure.

Rural community leaders' perceptions of environmental health risks: improving community health.

Qualitative description was used to explore how rural community leaders frame, interpret, and give meaning to environmental health issues affecting their constituents and communities. Six rural community leaders discussed growth, vulnerable families, and the action avoidance strategies they use or see used in lieu of adopting health-promoting behaviors. Findings suggest intervention strategies should be economical, use common sense, be sensitive to regional identity, and use local case studies and "inside leadership." Occupational health nurses addressing the disparate environmental health risks in rural communities are encouraged to use agenda-neutral, scientifically based risk communication efforts and foster collaborative relationships among nurses, planners, industry, and other community leaders.