Search PubMed⌕ Search

Biomedical subjects

R P Strauss

Publications and source records attributed to R P Strauss.

At least 19 recordsLinked to original sources

Willingness to volunteer in future preventive HIV vaccine trials: issues and perspectives from three U.S. communities.

UNLABELLED: This study examined perceived risks, benefits, and desired information related to willingness to volunteer in preventive HIV vaccine trials. SAMPLE: Purposive sampling was used to select 90 participants among injecting drug users (Philadelphia, PA, U.S.A.); gay men (San Francisco, CA, U.S.A.); and black Americans (Durham, NC, U.S.A.). METHODS: A qualitative interview guide elicited perceived benefits, risks, and desired information relating to trial participation. Themes were developed from the transcribed texts and from freelists. RESULTS: Stated willingness to volunteer in a preventive HIV vaccine trial was similar across the three communities. Eight perceived benefits were reported, including self-benefits, altruism, and stopping the spread of AIDS. Seven perceived risks were reported, including negative side effects and vaccine safety issues, contracting HIV from the vaccine, and social stigmatization. Participants voiced the desire for eight types of information about issues relating to trust and confidentiality in the research process, health complications and later assistance, and vaccine trial methodology. CONCLUSIONS: In this study, many benefits as well as risks of preventive HIV vaccine trial participation were cited. Scientists conducting preventive HIV vaccine trials need to address community perceptions of risks and provide information about the research if trial enrollment is to be diverse and successful.

AIDS Vaccines↗

"Only skin deep": health, resilience, and craniofacial care.

The literature on psychological and social responses to cleft palate and craniofacial conditions focuses on the challenges and limitations posed by biological factors, cognitive status, and social stigma. In spite of the various challenges experienced by persons with these conditions, many individuals have rich and satisfying lives. This paper develops a theoretical perspective to elucidate factors that account for health, life success, and resiliency in persons with craniofacial conditions. Three steps are proposed to change how craniofacial conditions are envisioned by clinicians and researchers: (1) creating optimism and positivity around the time of birth and diagnosis, (2) asking children and parents new and different questions, and (3) launching a new craniofacial social science model for research built around understanding resilience and health.

Adaptation, Psychological↗

Factors affecting African-American participation in AIDS research.

BACKGROUND: Although African Americans are disproportionately affected by the AIDS epidemic, they are underrepresented in AIDS research, particularly in AIDS clinical trials. This study examines a multidimensional construct of distrust and other factors that may affect willingness to participate in AIDS research. METHODS: A total of 301 African Americans (aged >/=18 years) in Durham, North Carolina participated in a cross-sectional survey. In-person interviews, 20 to 25 minutes in length, were conducted with participants. Structural equation modeling was used to develop models exploring distrust and other factors affecting willingness to participate in AIDS research among African Americans. RESULTS: Distrust was the strongest inverse predictor of willingness to participate in AIDS clinical trials. Distrust was not significantly associated with willingness to participate in AIDS surveys and educational interventions. Altruism, facilitators/barriers, religiosity, and economic group membership were also significantly associated with willingness to participate in AIDS clinical trials. Only altruism was significantly associated with willingness to participate in AIDS surveys and educational interventions. CONCLUSIONS: Distrust about research institutions is a significant barrier to recruiting African Americans in AIDS clinical trials. Issues of distrust need to be acknowledged by researchers to develop better recruitment and retention strategies when conducting AIDS clinical trials in African-American communities.

Acquired Immunodeficiency Syndrome↗

Factors associated with periodontitis in an HIV-infected southeast USA study.

OBJECTIVES: To determine the relationship of immunosuppression with measures of probing pocket depth (PPD), recession (REC), and clinical attachment level (CAL) in an HIV-infected population from North Carolina (NC), a state in the southeastern United States (USA). DESIGN: Cross-sectional study of HIV-infected adults (n = 326) treated at the University of North Carolina Hospitals. Clinical medical record review and sociodemographic interview data were collected. Median age of study participants was 37 years (range 19-67). Males comprised 78% and Blacks 60%. Analyses were limited to those who were dentate (n = 316). MAIN OUTCOME MEASURES: Main outcomes were cases vs non-cases of notable PPD, REC, and CAL. Immunosuppression measured by CD4+ cell count microL was the exposure of interest. RESULTS: Defined cases of PPD (n = 148) were 2.6 (95% CI = 1.3, 5.3) times less likely to occur at CD4+ cells < 200 than non-cases, whereas, cases of REC (n = 94) were 2.8 (95% CI = 1.2, 6.6) times more likely to occur at that level of severe immunosuppression, controlling for confounders. CONCLUSION: Sub-groups of persons with HIV experience a high burden of periodontitis where notable severity and extent of PPD, CAL, and REC were clearly evident at different stages of immunosuppression.

AIDS-Related Opportunistic Infections↗

Maternal cigarette smoking during pregnancy and risk of oral clefts in newborns.

The results of previous epidemiologic research on the possible association between maternal smoking during pregnancy and risk of oral clefts in offspring have been inconsistent. This may be due in part to methodological limitations, including imprecise measurement of tobacco use, failure to consider etiologic heterogeneity among types of oral clefts, and confounding. This analysis, based on a large case-control study, further evaluated the effect of first trimester maternal smoking on oral facial cleft risk by examining the dose-response relationship according to specific cleft type and according to whether or not additional malformations were present. A number of factors, including dietary and supplemental folate intake and family history of clefts, were evaluated as potential confounders and effect modifiers. Data on 3,774 mothers interviewed between 1976 and 1992 by the Slone Epidemiology Unit Birth Defects Study were used. Study subjects were actively ascertained from sites in areas around Boston, Massachusetts and Philadelphia, Pennsylvania; the state of Iowa; and southeastern Ontario, Canada. Cases were infants with isolated defects--cleft lip alone (n = 334), cleft lip and palate (n = 494), or cleft palate alone (n = 244)--and infants with clefts plus (+) additional malformations: cleft lip+ (n = 58), cleft lip and palate+ (n = 140), or cleft palate+ (n = 209). Controls were infants with defects other than clefts, excluding defects possibly associated with maternal cigarette use. There were no associations with maternal smoking for any oral cleft group, except for a positive dose response among infants with cleft lip and palate+ (for light smokers, odds ratio (OR) = 1.09 (95% confidence interval (CI): 0.6, 1.9); for moderate smokers, OR = 1.84 (95% CI: 1.2, 2.9); and for heavy smokers, OR = 1.85 (95% CI: 1.0, 3.5), relative to nonsmokers). This finding may be related to the additional malformations rather than to the cleft itself.

Abnormalities, Multiple↗

The organization and delivery of craniofacial health services: the state of the art.

The dominant organizational structure providing care for cleft palate and other craniofacial conditions is the health care team. Various types of health care team organization are profiled, including intradisciplinary, multidisciplinary, and interdisciplinary teams. Effective team-based care delivery has the ability to address the fragmentation and dehumanization that can result when a variety of specialists and disciplines are required to provide assessment and technical care. A team's leadership and its hierarchy of professional authority can be expected to affect its ability to function effectively. Health reform and managed care are considered for their impact on the team and on the doctor-patient relationship. Trends in team regionalization, quality assurance, outcomes research, and consumer advocacy are reviewed. The cleft palate and craniofacial team is profiled as an organizational model that is being affected by the forces of health system change.

Cleft Lip↗

Oral manifestations of HIV in a southeast USA population.

OBJECTIVES: Examine variations in oral manifestations of HIV by gender, race, risk behaviors, substance use and immune status in a previously unstudied population in the southeast region of the USA. DESIGN: Cross-sectional analytic study. SETTING: Academic medical center, North Carolina, USA. SUBJECTS: First 238 HIV-infected adults (76% male; 59% Black) enrolled in an ongoing longitudinal study. METHODS: Oral examination, medical chart review, sociodemographic and behavioral interview. Descriptive, bivariate, and multivariable analyses. OUTCOMES: Presence of oral manifestations of HIV. RESULTS: 50% had recent CD4 counts < 200 cells microliters-1, 48% had one or more oral lesion. Specific lesion prevalence: hairy leukoplakia (OHL) 26.5%; candidiasis (OC) 20%; HIV-associated periodontal diseases (HIV-PD) 8.8%; aphthae 4.2%; papillomas 2.5%; herpes simplex 2.1%; HIV salivary gland disease 2.1%; Kaposi's sarcoma (KS) 1.7%; other 1.3%. In bivariate analyses, OHL was associated with being male, White, having a CD4 < 200, and men who have sex with men (MSM); OC was associated with CD4 < 200 and current smoking; HIV-PD was associated with consumption of more than seven alcohol-containing drinks per week; KS was associated with being male and MSM. Significant variables in multivariable analysis for presence of any oral lesion were White, CD4 < 200, and more than seven drinks/week; for OHL were male and CD4 < 200; and for OC were White, CD4 < 200, current smoking, and not MSM. CONCLUSIONS: MSM were at increased risk for KS and OHL, not OC, while smokers were at increased risk of OC. OC, OHL, and any oral lesion were associated with immune suppression. OHL was more likely in males independent of CD4 count.

AIDS-Related Opportunistic Infections↗

Prevalence of HIV-associated periodontitis and chronic periodontitis in a southeastern US study group.

OBJECTIVES: This study estimates factors associated with the prevalence of HIV-associated periodontal diseases (HIV-P) and the severity and extent of periodontitis in HIV-infected adults from North Carolina (NC). METHODS: Data are derived from a cross-sectional study of HIV-infected adults (total n = 326, dentate n = 316) treated at the University of North Carolina Hospitals. Outcomes were a diagnosis of HIV-P and measures of probing pocket depth (PPD), recession (REC), and clinical attachment level (CAL). Immunosuppression was measured by peripheral blood CD4+ cells/mm3. RESULTS: In addition to persons with HIV (non-AIDS), this study included 10 percent of the AIDS cases in North Carolina. Median age was 37 years (range = 19-67); 78 percent were male and 60 percent were black. Sixty-two percent of persons had a probing pocket depth > or = 5 mm; 46% had recession > or = 3 mm, and 66 percent had attachment level > or = 5 mm in one or more sites. Cases of HIV-P (n = 15) were rare. Persons taking HIV-antiretroviral medication were one-fifth (OR = 0.20; 95% CI = 0.07, 0.63) as likely to have HIV-P as those not taking those medications, controlling for CD4+ cell counts. CONCLUSIONS: HIV-infected persons in this study group from North Carolina exhibited severe and extensive measures of adult periodontitis. A small proportion experienced a severe form of HIV-P, which was attenuated by antiretroviral therapy.

Acquired Immunodeficiency Syndrome↗

Cleft palate and craniofacial teams in the United States and Canada: a national survey of team organization and standards of care. The American Cleft Palate-Craniofacial Association (ACPA) Team Standards Committee.

OBJECTIVE: This study is the first comprehensive national survey of the organization, function, and composition of cleft palate and craniofacial teams in the U.S. and Canada. Complete descriptions of cleft and craniofacial teams are not currently provided in the literature, and this study will provide an overview for health services research and policy use. Conducted by a national organization, this study examines teams in detail using a pretested and standardized methodology. DESIGN: All known (n = 296) North American cleft palate and craniofacial teams were contacted for team listing purposes using a self-assessment method developed by an interdisciplinary committee of national stature. Team clinical leaders classified their teams into several possible categories and provided data on team care. The response rate was 83.4% (n = 247). RESULTS: The distribution of listed teams was: 105 (42.5%) cleft palate teams, 102 (41.3%) craniofacial teams (including craniofacial teams that are both cleft palate and craniofacial teams), 12 (4.9%) geographically listed teams, and 28 (11.3%) other teams (including interim cleft palate teams, low-density cleft palate teams, and evaluation and treatment review cleft palate teams). Eighty-five percent of all teams systematically collected and stored clinical data on their team's patient population in the past year. Furthermore, 50% of all teams had a quality assurance program in place to measure treatment outcomes. Other findings presented include the annual number of face-to-face team meetings; new and follow-up patient censuses; and surgical rates for initial repair of cleft lip/palate, orthognathic/osteotomy procedures, and intracranial/craniofacial procedures. CONCLUSIONS: Two of five North American teams classify themselves as having the capacity to provide both cleft palate and craniofacial care. An additional two of five teams limit their primary role to cleft palate care. Issues are raised regarding the distribution of teams, the regionalization of craniofacial services, health policy, and resource allocation.

Canada↗

Conference summary: assessing oral health outcomes--measuring health status and quality of life.

OBJECTIVE: This paper summarises proceedings of a conference that aimed to evaluate existing measures of oral health related quality of life and to recommend new directions for their use in oral health outcomes research. METHOD: A two day conference was held in Chapel Hill, North Carolina, USA, in June 1996. Background papers, poster-discussion sessions, small group discussions and reactor papers were used to analyse 11 oral health related quality of life instruments and to evaluate their potential for use in health outcomes research. RESULTS: Speakers emphasised the need to include quality of life in multidimensional assessments of oral health outcomes. Existing instruments capture numerous quality of life dimensions using a variety of question- and response-formats. The instruments have been used primarily in cross-sectional, observational studies rather than longitudinal, intervention studies that evaluate health outcomes. There is little experience from their use in long-term follow-up studies and with some special population sub-groups. Recommendations for further research are presented in papers that follow this summary paper. CONCLUSIONS: There has been substantial development and use of quality of life measures in oral health surveys, and there is an immediate need for further research that modifies and uses those instruments in oral health outcomes research.

Cross-Sectional Studies↗

Assessing dental anxiety, dental care use and oral status in older adults.

This study examined associations between dental anxiety and dental care use and oral health status in dentate older adults. Analysis of data from the Piedmont 65+ Dental Study revealed that aspects of dental care use and oral health status were independently associated with high dental anxiety. These results suggest that measures to control dental anxiety may help to improve dental care use and oral health status in older adults.

Aged↗

Culture, dental professionals and oral health values in multicultural societies: measuring cultural factors in geriatric oral health research and education.

Culture has significant impacts upon professional practice and patient health behaviours, especially in multicultural societies. This paper introduces the concept of culture and examines how it may be of importance to dental health professionals. Using the Dental Impact Profile and other dental social science measures, dental researchers and students can be engaged in studying cultural values and characteristics as a way of dealing with cultural differences.

Aged↗

Variations in the social impact of oral conditions among older adults in South Australia, Ontario, and North Carolina.

Previous studies among older adults have demonstrated that oral disease frequently leads to dysfunction, discomfort, and disability. This study aimed to assess variations in the social impact of oral conditions among six strata of people aged 65 years and older: residents of metropolitan Adelaide and rural Mt Gambier, South Australia; residents of metropolitan Toronto-North York and non-metropolitan Simcoe-Sudbury counties, Ontario, Canada; and blacks and whites in the Piedmont region of North Carolina (NC), United States. Subjects were participants in three oral epidemiological studies of random samples of the elderly populations in the six strata. Some 1,642 participants completed a 49-item Oral Health Impact Profile (OHIP) questionnaire which asked about impacts caused by problems with the teeth, mouth, or dentures during the previous 12 months. The percentage of dentate people reporting impacts fairly often or very often was greatest among NC blacks for 41 of the OHIP items. Two summary variables of social impact were used as dependent variables in bivariate and multivariate least-squares regression analyses. Among dentate people, mean levels of social impact were greatest for NC blacks and lowest for NC whites, while people from South Australia and Ontario had intermediate levels of social impact (P < 0.01). Missing teeth, retained root fragments, root-surface decay, periodontal pockets, and problem-motivated dental visits were associated with higher levels of social impact (P < 0.05), although there persisted a two-fold difference in social impact across the six strata after adjustment for those factors Among edentulous people, there was no statistically significant variation in social impact among strata. The findings suggest that there are social and cultural factors influencing oral health and its social impact, and that those factors differ most between dentate blacks and whites in NC.

Black or African American↗

Differences between racial groups in the impact of oral disorders among older adults in North Carolina.

OBJECTIVES: This study investigated variations in impact of oral disorders between older black adults and older white adults living in North Carolina. METHODS: Using the Oral Health Impact Profile (OHIP) questionnaire, 440 participants aged 70 and older provided data on their perceptions of the impact of oral disease on aspects of their lives during the previous 12 months. RESULTS: For 22 of the 49 items queried in the OHIP questionnaire, older blacks reported more frequent impact than older whites (P < .05). For none of the OHIP items did whites report more frequent impact. The impacts reported were diverse and included items reflecting pain, physical disability, psychological disability, and social disability. When the number of items occurring fairly often or very often were summed for dentate participants, blacks reported more items than did whites (3.7 vs 1.1, P < .0001). This difference decreased to 2.7 vs 2.0 (P < .346) after controlling statistically for greater mean periodontal pocket depth, more unreplaced missing teeth, and more episodic dental visits among blacks. CONCLUSIONS: Older dentate blacks reported more impact from oral problems than older dentate whites. The differences in reported impact likely are linked to differences in oral status and dental visit history between these two racial groups in North Carolina.

Black or African American↗

Resource allocation, health policy, and rationing craniofacial care.

The United States allocates health care without an overt system of rationing. This article analyzes the forces that guide resource allocation to craniofacial care. Various possible allocation systems are reviewed for how decision makers might evaluate proposed programs for legislative funding. Using a case-based exercise, readers are asked to weigh the potential costs and benefits of six health and social programs. These programs are also systematically examined for factors that are likely to affect resource allocation decisions. Eleven factors that affect decision-making are utilized in the analysis, ranging from the cost per client to emotional or human interest content of the proposed programs. Decisions about preventive programs are compared with those involving therapeutic programs. The allocation of resources to craniofacial programs, including those for children with rare major craniofacial conditions, is considered in the context of social justice and broad contemporary ethical and health care delivery issues.

Acquired Immunodeficiency Syndrome↗