Determination of sediment sources in a mixed watershed within the Appalachian-St. Lawrence Lowland Regions of southern Quebec using sediment fingerprinting.

This paper identifies the main sediment sources to the Beaudet Reservoir in Quebec (Canada) using sediment fingerprinting. The reservoir, which is built on the Bulstrode River and provides drinking water to Victoriaville, has decreased in capacity by 35% in the past 35 years. This study provides new data on fingerprinting in large and complex watersheds, a first in the province of Quebec. Nine sampling sites on the Bulstrode River and its three main tributaries were selected and five sampling campaigns were conducted. Samples from river bank profiles and adjacent fields, along with suspended sediments, were collected. All samples were sieved to 2 mm and analyzed for 137Caesium, 15 geochemical elements and sieved to 63 µm for color analysis. Source classification, based on an ANOVA test to verify the independence hypothesis and iterative linear discriminant analysis to optimize the ratio of inter-group/within-group variability, resulted in four sample classes: agricultural soils, forested soils, stream bank bottom and stream bank top. A Kruskal-Wallis H test then identified 21 out of the 32 tracers with p value < 0.05. The linear discriminant analysis led to a set of 14 tracers, namely 137Cs and 13 color coefficients with a discriminating result of 94%. That combination of 137Cs and color coefficients proved to be a cost-effective fingerprint. Based on MixSIAR modeling results, this sediment fingerprinting study has demonstrated that the main sediment sources varied within the watershed but, generally, forested soil particles dominated (33 to 49%), then agricultural soils (43 to 50%) reflecting the land use changes, followed by stream bank bottoms (82%) at the Beaudet Reservoir.

Preconception Care in Publicly Funded U.S. Clinics That Provide Family Planning Services.

INTRODUCTION: Federal recommendations for providing quality family planning services were published in 2014 and included preconception care (PCC). This paper aims to describe the prevalence of PCC delivery among publicly funded clinics, prior to the recommendations. METHODS: Prevalence of providing occasional or frequent PCC in the last 3 months and having written protocols for recommended PCC screenings were estimated in 2015 using survey data collected from a nationally representative sample of publicly funded clinic administrators (2013-2014, N=1,615). Analyses included examination of differential distributions of outcomes by clinic characteristics (p<0.05) and multivariable regression. RESULTS: Prevalence of occasional or frequent PCC delivery was 81% for women and 38% for men. The percentage of clinics with written protocols for specific PCC screenings ranged from 74% to 88% (women) and 66% to 83% (men). Prevalence of having written protocols for all PCC screenings was 29% for women and 22% for men. Characteristics negatively associated with having written protocols for all PCC screenings for women and men (respectively) were as follows: not receiving Title X funding (adjusted prevalence ratio [APR]=0.6, 95% CI=0.50, 0.76; APR=0.6, 95% CI=0.47, 0.77) and being a community health center (APR=0.5, 95% CI=0.37, 0.72; APR=0.5, 95% CI=0.30, 0.67); health department (APR=0.7, 95% CI=0.61, 0.87; APR=0.6, 95% CI=0.49, 0.76); or hospital/other (APR=0.6, 95% CI=0.50, 0.79; APR=0.6, 95% CI=0.43, 0.75) (versus Planned Parenthood). CONCLUSIONS: Provision of PCC appears to differ by clinic characteristics and by interpretation of the phrase "preconception care," suggesting opportunities for education and improvement.

Community Engagement in Family Planning in the U.S.: A Systematic Review.

CONTEXT: Community engagement may include activities that involve community members in the design, implementation, and evaluation of services. The objective of this systematic review was to evaluate the evidence on this kind of community engagement in U.S. family planning programs, including its effects on various health outcomes, its perceived value, and the barriers and facilitators to implementation. EVIDENCE ACQUISITION: Using an analytic approach drawn from U.S. Preventive Services Task Force, multiple databases were searched for articles published from 1985 through February 2011 that described studies about community engagement related to family planning. In 2011, relevant articles were reviewed, summarized, and assessed for potential bias using a standardized abstraction process. An updated, targeted review for the 2011-2014 period was conducted in early 2015. EVIDENCE SYNTHESIS: Eleven papers related to family planning were included. All were qualitative, descriptive, and at high risk for bias. Engagement strategies involved various methods for developing educational materials, program development, or program evaluation. All studies reported benefits to community engagement, such as more-appropriate educational materials or more community support for programs. Barriers to engagement included the substantial time and resources required. Four more articles were identified in the targeted, additional search. CONCLUSIONS: Community engagement is described as beneficial across the included studies, but the body of evidence for community engagement in family planning is relatively small. Given the high value ascribed to community engagement, more research and documentation of the various approaches taken and their relative strengths and weaknesses are needed.

Programs to Strengthen Parent-Adolescent Communication About Reproductive Health: A Systematic Review.

CONTEXT: When caring for an adolescent client, providers of contraceptive services must consider whether and how to encourage parent/guardian-child communication about the adolescent's reproductive health. The objective of this systematic review was to summarize the evidence on the effectiveness of programs designed to increase parent-child communication about reproductive health. The review was used to inform national recommendations on quality family planning services. Data analysis occurred from mid-2011 through 2012. EVIDENCE ACQUISITION: Several electronic bibliographic databases were used to identify relevant articles, including PubMed, CINAHL, PsycINFO, and Popline, published from January 1985 through February 2011. EVIDENCE SYNTHESIS: Sixteen articles met the inclusion criteria: all studies examined the impact on at least one medium- or short-term outcome, and two studies assessed the impact on teen pregnancy. One study examined the impact of a program conducted in a clinic setting; the remainder examined the impact of programs in community settings. All studies showed a positive impact on at least one short-term outcome, and 12 of 16 studies showed an increase in parent-child communication about reproductive health. Four of seven studies found an impact on sexual risk behavior. CONCLUSIONS: Most programs increased parent-child communication, and several resulted in reduced sexual risk behavior of adolescents. This suggests that delivering a clinic-based program that effectively helps parents/guardians talk to their adolescent child(ren) about reproductive health, or referring parents/guardians to an evidence-based program in the community, may be beneficial. However, further rigorous research on delivery of these programs in clinical settings is needed.

Diagnostic accuracy of self-reported racial composition of residential neighborhood.

PURPOSE: To examine the diagnostic accuracy of self-reported measures of individuals' perceptions of the racial and ethnic composition of their communities with objective data (i.e., census) as the criterion standard and assess differences in concordance in subjective and objective measures of segregation by race and ethnicity. METHODS: We examined data from 943 adult community health center visitors in Suffolk County, New York to assess differences between self-reported racial composition of current neighborhood and 2010 U.S. Census data. A cross-sectional convenience sample was obtained; questionnaires were used to compare participant responses about the racial composition of their current neighborhood and their town of residence. RESULTS: Respondents who self-identified as white were more likely to self-report racial composition of their neighborhood consistent with 2010 Census estimates. Relative to census estimates, 93.1% of blacks overestimated the proportion of their current neighborhood that was black, and 69.8% of Hispanics overestimated the proportion that was Hispanic. CONCLUSIONS: There were statistically significant differences between the participants' self-reported neighborhood racial composition and census data across race and ethnicity groups. Future studies are needed to validate self-reported measures of individuals' perceptions of the racial and ethnic composition of their communities to examine the association between individual segregation experience and health.

Effects of racial and ethnic group and health literacy on responses to genomic risk information in a medically underserved population.

OBJECTIVE: Few studies have examined how individuals respond to genomic risk information for common, chronic diseases. This randomized study examined differences in responses by type of genomic information (genetic test/family history) and disease condition (diabetes/heart disease), and by race/ethnicity in a medically underserved population. METHODS: 1,057 English-speaking adults completed a survey containing 1 of 4 vignettes (2-by-2 randomized design). Differences in dependent variables (i.e., interest in receiving genomic assessment, discussing with doctor or family, changing health habits) by experimental condition and race/ethnicity were examined using chi-squared tests and multivariable regression analysis. RESULTS: No significant differences were found in dependent variables by type of genomic information or disease condition. In multivariable models, Hispanics were more interested in receiving a genomic assessment than Whites (OR = 1.93; p < .0001); respondents with marginal (OR = 1.54; p = .005) or limited (OR = 1.85; p = .009) health literacy had greater interest than those with adequate health literacy. Blacks (OR = 1.78; p = .001) and Hispanics (OR = 1.85; p = .001) had greater interest in discussing information with family than Whites. Non-Hispanic Blacks (OR = 1.45; p = .04) had greater interest in discussing genomic information with a doctor than Whites. Blacks (ß = -0.41; p < .001) and Hispanics (ß = -0.25; p = .033) intended to change fewer health habits than Whites; health literacy was negatively associated with number of health habits participants intended to change. CONCLUSIONS: Findings suggest that race/ethnicity may affect responses to genomic risk information. Additional research could examine how cognitive representations of this information differ across racial/ethnic groups. Health literacy is also critical to consider in developing approaches to communicating genomic information.

Building an evidence base to inform interventions for pregnant and parenting adolescents: a call for rigorous evaluation.

Adolescent parents and their children are at increased risk for adverse short- and long-term health and social outcomes. Effective interventions are needed to support these young families. We studied the evidence base and found a dearth of rigorously evaluated programs. Strategies from successful interventions are needed to inform both intervention design and policies affecting these adolescents. The lack of rigorous evaluations may be attributable to inadequate emphasis on and sufficient funding for evaluation, as well as to challenges encountered by program evaluators working with this population. More rigorous program evaluations are urgently needed to provide scientifically sound guidance for programming and policy decisions. Evaluation lessons learned have implications for other vulnerable populations.

Self-reported segregation experience throughout the life course and its association with adequate health literacy.

Residential segregation has been shown to be associated with health outcomes and health care utilization. We examined the association between racial composition of five physical environments throughout the life course and adequate health literacy among 836 community health center patients in Suffolk County, NY. Respondents who attended a mostly White junior high school or currently lived in a mostly White neighborhood were more likely to have adequate health literacy compared to those educated or living in predominantly minority or diverse environments. This association was independent of the respondent's race, ethnicity, age, education, and country of birth.

Perceived familiarity with and importance of family health history among a medically underserved population.

Inadequate knowledge of family health history (FHH) continues to be a major obstacle limiting its usefulness in public health and clinical practice; strategies to facilitate FHH dissemination are needed. Data (N = 1,334) were obtained through waiting-room surveys completed by a diverse sample of patients attending three community health centers. Perceptions about the importance of genetic information (ß = 0.13, p < 0.001; ß = 0.11, p < 0.001) and higher genetic self-efficacy (ß = 0.14, p < 0.001; ß = 0.23, p < 0.001) were significantly associated with higher levels of perceived familiarity with and importance of FHH, respectively. Furthermore, beliefs about genetic causation of illnesses (ß = 0.12, p < 0.001) and a wider reach of health communication within one's family (ß = 0.15, p < 0.001) were associated with higher levels of perceived familiarity with one's FHH. Participants in the oldest group (>50 years) reported higher familiarity than those in the youngest (18-25 years). Those with higher familiarity were significantly less likely to answer "don't know" when reporting diabetes and heart disease diagnoses among immediate (OR = 0.35 and OR = 0.29, respectively) and extended (OR = 0.50 and OR = 0.46, respectively) family members. Having a wider health communication reach within a family may be beneficial in increasing familiarity with FHH; however, the reported levels of communication reach were limited among most participants. Women, older-generation family members, and those who believe in the importance of genetics in health or feel confident about using genetic information may be particularly important as targets of public health interventions to facilitate FHH dissemination within families.

Weight perceptions and perceived risk for diabetes and heart disease among overweight and obese women, Suffolk County, New York, 2008.

INTRODUCTION: Many Americans fail to accurately identify themselves as overweight and underestimate their risk for obesity-related diseases. The purpose of this study was to investigate associations between weight perceptions and perceived risk for diabetes and heart disease among overweight or obese women. METHODS: We examined survey responses from 397 overweight or obese female health center patients on disease risk perceptions and weight perceptions. We derived odds ratios (ORs) and 95% confidence intervals (CIs) from multivariable logistic regression analyses to examine predictors of perceived risk for diabetes and heart disease. We further stratified results by health literacy. RESULTS: Perceiving oneself as overweight (OR, 2.78; 95% CI, 1.16-6.66), believing that being overweight is a personal health problem (OR, 2.46; 95% CI, 1.26-4.80), and family history of diabetes (OR, 3.22; 95% CI, 1.53-6.78) were associated with greater perceived risk for diabetes. Perceiving oneself as overweight (OR, 4.33; 95% CI, 1.26-14.86) and family history of heart disease (OR, 2.25; 95% CI, 1.08-4.69) were associated with greater perceived risk for heart disease. Among respondents with higher health literacy, believing that being overweight was a personal health problem was associated with greater perceived risk for diabetes (OR, 4.91; 95% CI, 1.68-14.35). Among respondents with lower health literacy, perceiving oneself as overweight was associated with greater perceived risk for heart disease (OR, 4.69; 95% CI, 1.02-21.62). CONCLUSION: Our findings indicate an association between accurate weight perceptions and perceived risk for diabetes and heart disease in overweight or obese women. This study adds to research on disease risk perceptions in at-risk populations.

Relationship between self-reported racial composition of high school and health literacy among community health center patients.

Intervention and policy approaches targeting the societal factors that affect health literacy (e.g., educational systems) could have promise to improve health outcomes, but little research has investigated these factors. This study examined the associations between self-reported racial composition of prior educational and neighborhood contexts and health literacy among 1,061 English- and Spanish-speaking adult community health center patients. The authors found that self-reported racial composition of high school was a significant predictor of health literacy among those who received schooling in the United States, controlling for race/ethnicity, education, age, country of birth, and survey language. Black and Hispanic patients had significantly lower health literacy than White patients within educational strata among those schooled in the United States. The findings revealed substantial disparities in health literacy. Self-reported racial composition of school context was a significant predictor of health literacy. Transdisciplinary, multilevel intervention approaches are likely to be needed to address the health literacy needs of this population.

Factors affecting frequency of communication about family health history with family members and doctors in a medically underserved population.

OBJECTIVE: Family history contributes to risk for many common chronic diseases. Little research has investigated patient factors affecting communication of this information. METHODS: 1061 adult community health center patients were surveyed. We examined factors related to frequency of discussions about family health history (FHH) with family members and doctors. RESULTS: Patients who talked frequently with family members about FHH were more likely to report a family history of cancer (p =.012) and heart disease (p < .001), seek health information frequently in newspapers (p < .001) and in general (p < .001), and be female (p < .001). Patients who talked frequently with doctors about FHH were more likely to report a family history of heart disease (p = .011), meet physical activity recommendations (p = .022), seek health information frequently in newspapers (p < .001) and in general (p < .001), be female (p < .001), and not have experienced racial discrimination in healthcare (p < .001). CONCLUSION: Patients with a family history of some diseases, those not meeting physical activity recommendations, and those who do not frequently seek health information may not have ongoing FHH discussions. PRACTICE IMPLICATIONS: Interventions are needed to encourage providers to update patients' family histories systematically and assist patients in initiating FHH conversations in order to use this information for disease prevention and control.

Issues in the Assessment of "Race" among Latinos: Implications for Research and Policy.

Measurement of race and ethnicity is integral to assessing and addressing health disparities experienced by minorities. However, the unique experiences of Latinos related to race and the discordance between understandings of race among Latinos and the predominant U.S. conceptualizations of this construct impact how Latinos respond to measurement approaches. As a result, data collection methodologies often yield ambiguous responses that reveal little about this population. This paper examines Latinos' racial responding, and how this relates to their experiences and understanding of their racial identity. We recommend the use of a combined race and ethnicity question and open-ended race and ethnicity questions, when feasible, which will likely yield more meaningful data that can be used to address this populations' health needs.

Informational content, literacy demands, and usability of websites offering health-related genetic tests directly to consumers.

PURPOSE: As direct-to-consumer genetic testing becomes more available, a diverse group of consumers, including those with limited health literacy, may consider testing. In light of concerns raised about direct-to-consumer genetic testing, this study sought to critically examine whether the informational content, literacy demands, and usability of health-related direct-to-consumer websites met existing recommendations. METHODS: A content analysis was performed on 29 health-related direct-to-consumer websites. Two coders independently evaluated each website for informational content (e.g., benefits, limitations), literacy demands (e.g., reading level), and usability (e.g., ease of navigation). RESULTS: Most sites presented health conditions and some markers for which they tested, benefits of testing, a description of the testing process, and their privacy policy. Fewer cited scientific literature, explained test limitations, or provided an opportunity to consult a health professional. Key informational content was difficult to locate on most sites. Few sites gave sample disease risk estimates or used common language and explained technical terms consistently. Average reading level was grade 15. CONCLUSION: The quality of informational content, literacy demands, and usability across health-related direct-to-consumer websites varied widely. Many users would struggle to find and understand the important information. For consumers to better understand the content on these sites and evaluate the meaning of the tests for their health, sites should lower the demands placed on users by distilling and prioritizing the key informational content while simultaneously attending to the reading level and usability elements. In the absence of regulation compelling such changes, government agencies or professional organizations may need to increase consumer and provider awareness of these issues.

Beliefs about heritability of cancer and health information seeking and preventive behaviors.

BACKGROUND: Individuals' beliefs about cancer heritability could affect their health information seeking and health behaviors. METHODS: Data from 5813 English-speaking adult respondents to the 2003 Health Information National Trends Survey were analyzed. RESULTS: Individuals who believed that knowledge of family history or genes can reduce cancer risk were significantly more likely to have ever looked for cancer information. Ever smokers who believed that genes are the main cause of lung cancer were significantly more likely to smoke currently. CONCLUSIONS: Patients need to be educated about genetic susceptibility to cancer in ways that support information seeking and engagement in protective behaviors.

Testing communication strategies to convey genomic concepts using virtual reality technology.

Health professionals need to be able to communicate information about genomic susceptibility in understandable and usable ways, but substantial challenges are involved. We developed four learning modules that varied along two factors: (1) learning mode (active learning vs. didactic learning) and (2) metaphor (risk elevator vs. bridge) and tested them using a 2 x 2 between-subjects, repeated measures design. The study used an innovative virtual reality technology experimental platform; four virtual worlds were designed to convey the concept that genetic and behavioral factors interact to affect common disease risk. The primary outcome was comprehension (recall, transfer). Study participants were 42 undergraduates aged 19-23. The results indicated that the elevator metaphor better supported learning of the concept than the bridge metaphor. Mean transfer score was significantly higher for the elevator metaphor (p < 0.05). Mean change in recall was significantly higher for didactic learning than active learning (p < 0.05). Mean ratings for variables posited to be associated with better learning (e.g., motivation), however, were generally higher for the active learning worlds. The results suggested that active learning might not always be more effective than didactic learning in increasing comprehension of health information. The findings also indicated that less complex metaphors might convey abstract concepts more effectively.

Testing the effects of educational strategies on comprehension of a genomic concept using virtual reality technology.

OBJECTIVE: Applying genetic susceptibility information to improve health will likely require educating patients about abstract concepts, for which there is little existing research. This experimental study examined the effect of learning mode on comprehension of a genomic concept. METHODS: 156 individuals aged 18-40 without specialized knowledge were randomly assigned to either a virtual reality active learning or didactic learning condition. The outcome was comprehension (recall, transfer, mental models). RESULTS: Change in recall was greater for didactic learning than for active learning (p<0.001). Mean transfer and change in mental models were also higher for didactic learning (p<0.0001 and p<0.05, respectively). Believability was higher for didactic learning (p<0.05), while ratings for motivation (p<0.05), interest (p<0.0001), and enjoyment (p<0.0001) were higher for active learning, but these variables did not mediate the association between learning mode and comprehension. CONCLUSION: These results show that learning mode affects comprehension, but additional research is needed regarding how and in what contexts different approaches are best for educating patients about abstract concepts. PRACTICE IMPLICATIONS: Didactic, interpersonal health education approaches may be more effective than interactive games in educating patients about abstract, unfamiliar concepts. These findings indicate the importance of traditional health education approaches in emerging areas like genomics.

Presence relates to distinct outcomes in two virtual environments employing different learning modalities.

Presence in virtual learning environments (VLEs) has been associated with a number of outcome factors related to a user's ability and motivation to learn. The extant but relatively small body of research suggests that a high level of presence is related to better performance on learning outcomes in VLEs. Different configurations of form and content variables such as those associated with active (self-driven, interactive activities) versus didactic (reading or lecture) learning may, however, influence how presence operates and on what content it operates. We compared the influence of presence between two types of immersive VLEs (i.e., active versus didactic techniques) on comprehension and engagement-related outcomes. The findings revealed that the active VLE promoted greater presence. Although we found no relationship between presence and learning comprehension outcomes for either virtual environment, presence was related to information engagement variables in the didactic immersive VLE but not the active environment. Results demonstrate that presence is not uniformly elicited or effective across immersive VLEs. Educational delivery mode and environment complexity may influence the impact of presence on engagement.