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Evaluation and Comparison of Theoretical Models’ Abilities to Explain and Predict Colorectal Cancer Screening BehaviorsMolisani, Anthony J 01 January 2015 (has links)
BACKGROUND: Colorectal cancer (CRC) is the fourth most common and second most deadly cancer in the United States. However, it is highly preventable and treatable if detected at the precancerous or local stage of development. There exists multiple screening methods each with varying sensitivity, required effort, and recommended frequency of use. Complete adherence to screening guidelines by the recommended, at-risk population would halve the current mortality rate. Unfortunately, screening adherence remains the lowest of all screened cancers with a median state screening adherence rate of about 65%. To understand what individual-level factors influence an individual’s decision to be screened, health behavior theory is used. However, few studies have evaluated the performance of entire behavioral theories in their ability to explain CRC screening intentions and behaviors.
METHOD: Health Belief Model, Theory of Reasoned Action, Theory of Planned Behavior, and Attribution Theory were evaluated within the context of colorectal cancer screening using an online national sample (N=403) of at-risk individuals age 50 and older. Confirmatory factor analyses were performed for each evaluated construct of the theory. Structural equation models were created using the estimated constructs for each theory. Each theory was evaluated for the following screening use: colonoscopy, sigmoidoscopy, fecal occult blood test (FOBT), and general screening use. Fit statistics were estimated for each model. Models with acceptable fit were examined for significant pathways within the model as well as consistency of the model with the behavioral theory.
RESULTS: All models displayed adequate fit statistics. While not all pathways were significant in each model, no estimate was the inverse in directionality to that hypothesized. This provides support that each theory lends some explanatory power and none of the theories evaluated detract from understanding CRC screening intentions and behaviors. Comparison of the models illustrates advantages to each theory and suggests potential integration of theories.
CONCLUSION: The constructs of the Health Belief Model, Theory of Planned Behavior, and Attribution Theory all provide adequate explanations of individual-level CRC screening behavior influences. Although, further review and refinement of the theories is warranted and recommended.
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Unidade móvel de prevenção na busca ativa do câncer do colo do útero nas zonas urbana e rural de Barretos / Mobile prevention unit for actively searching for uterine cervical cancer in the urban and rural zones of BarretosJunea Caris de Oliveira 25 February 2011 (has links)
Introdução: O câncer do colo do útero é um problema de saúde publica, é uma importante causa de morbidade e mortalidade em mulheres de todo mundo. O rastreamento com a citologia de Papanicolaou, quando realizado periodicamente demonstrou ser eficaz na redução de incidência e mortalidade em países desenvolvidos. O rastreamento com unidade móvel de prevenção é uma estratégia para o diagnóstico precoce do câncer do colo do útero. Objetivo: Avaliar os resultados do programa de rastreamento com busca ativa e unidade móvel na detecção precoce do câncer do colo do útero na população das zonas urbana e rural de Barretos. Casuística e Métodos: Estudo retrospectivo, descritivo, com 16.849 mulheres na zona urbana e 1.055 na zona rural de Barretos. O projeto inclui visitas domiciliares repetidas de um profissional de saúde da unidade móvel do Hospital de Câncer de Barretos (HCB), entrevista e coleta de Papanicolaou. Mulheres com diagnóstico citológico de ASC-US, ASC-H, lesões intraepiteliais e carcinoma invasivo, foram convocadas para colposcopia e todas as mulheres com histopatológico de carcinoma foram tratadas e permanecem em seguimento no HCB. Os resultados deste programa foram comparados com dados do registro sobre câncer do colo do útero do Departamento Regional de Saúde V (DRS-V) e da Fundação Oncocentro de São Paulo (FOSP), do mesmo período. Resultados: Na zona urbana 10.350 (61,4%) mulheres foram examinadas e realizaram o exame de Papanicolaou, com taxa de cobertura de 62,9% nas mulheres em idade alvo (25 a 60 anos) do programa brasileiro. Foram identificados 35 casos de carcinoma, sendo 77,1% de carcinoma espinocelular in situ. A idade média foi 41,9 anos, 81,4% das mulheres examinadas eram das classes socioeconômicas D e E, e 88,6% apresentavam exame prévio de Papanicolaou. Na zona rural, 1.055 (100%) mulheres foram entrevistadas, examinadas e realizaram o exame de Papanicolaou, com taxa de cobertura de 74,4% na idade alvo. Foram identificados 6 casos de carcinoma, sendo 83,3% de carcinoma espinocelular in situ. A idade média foi de 39,8 anos, 86,7% nas classes socioeconômicas D e E, e 81,0% das mulheres apresentavam exame de Papanicolaou prévio. Analisamos os dados do programa de rastreamento do HCB e comparamos com os dados, em relação ao estadiamento, da DRS-V e FOSP, no mesmo período. Está análise mostrou que houve uma prevalência de lesões in situ em relação às invasivas no programa de rastreamento do HCB quando comparado à DRS-V (p=0,005) e à FOSP (p<0,001). Conclusões: O rastreamento com busca ativa e unidade móvel é um método efetivo no diagnóstico precoce do câncer do colo do útero / Introduction: Uterine cervical cancer is a public health problem and an important cause of morbidity and mortality among women worldwide. Screening using the Papanicolaou cytological test, when done repeatedly, has been shown to be effective for reducing the incidence and mortality of this disease in developed countries. Screening with an active search using a mobile unit is a strategy for early diagnosis of uterine cervical cancer. Objective: To evaluate the results from a screening program with an active search using a mobile unit for early detection of uterine cervical cancer among the populations in the urban and rural zones of Barretos. Sample and Methods: This was a retrospective descriptive study on 16,849 women in the urban zone and 1,055 in the rural zone of Barretos. The project included repeated home visits by a healthcare professional from the mobile unit of Barretos Cancer Hospital (HCB), interviews and collection of Papanicolaou smears. Women with a cytological diagnosis of ASC-US, ASC-H, intraepithelial lesions and invasive carcinoma were called in for colposcopy examinations. All the women with a histopathological diagnosis of carcinoma were treated and remained under follow-up by HCB. The results were compared with data from the uterine cervical cancer records of the Fifth Regional Health Department (DRS-V) and the Oncocenter Foundation of São Paulo (FOSP), covering the same period. Results: From the urban zone, 10,350 Papanicolaou smears (61.4%) were collected, with a coverage rate of 62.9% of the women at the target age for the Brazilian program. There were 35 cases of carcinoma, of which 77.1% were in situ squamous cell carcinoma. The womens mean age was 41.9 years; 81.4% were in socioeconomic classes D and E; and 88.6% had had a previous Papanicolaou examination. In the rural zone, 1,055 Papanicolaou smears (100.0%) were collected, with a coverage rate of 74.4% of the women at the target age. There were six cases of carcinoma, of which 83.3% were in situ squamous cell carcinoma. The womens mean age was 39.8 years; 86.7% were in socioeconomic classes D and E; and 81.0% had had a previous Papanicolaou examination. We analyzed the data from the HCB screening program in comparison with the staging data from DRS-V and FOSP, over the same period. There were statistically significant differences in the proportions of in situ and invasive carcinoma found in the HCB screening program in relation to DRS-V (p = 0.0046) and in relation to FOSP (p < 0.001). This analysis showed that there was higher prevalence of in situ lesions than of invasive lesions in the HCB screening program. Conclusions: Screening with an active search using a mobile unit is an effective method for early diagnosis of uterine cervical cancer
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Unidade móvel de prevenção na busca ativa do câncer do colo do útero nas zonas urbana e rural de Barretos / Mobile prevention unit for actively searching for uterine cervical cancer in the urban and rural zones of BarretosOliveira, Junea Caris de 25 February 2011 (has links)
Introdução: O câncer do colo do útero é um problema de saúde publica, é uma importante causa de morbidade e mortalidade em mulheres de todo mundo. O rastreamento com a citologia de Papanicolaou, quando realizado periodicamente demonstrou ser eficaz na redução de incidência e mortalidade em países desenvolvidos. O rastreamento com unidade móvel de prevenção é uma estratégia para o diagnóstico precoce do câncer do colo do útero. Objetivo: Avaliar os resultados do programa de rastreamento com busca ativa e unidade móvel na detecção precoce do câncer do colo do útero na população das zonas urbana e rural de Barretos. Casuística e Métodos: Estudo retrospectivo, descritivo, com 16.849 mulheres na zona urbana e 1.055 na zona rural de Barretos. O projeto inclui visitas domiciliares repetidas de um profissional de saúde da unidade móvel do Hospital de Câncer de Barretos (HCB), entrevista e coleta de Papanicolaou. Mulheres com diagnóstico citológico de ASC-US, ASC-H, lesões intraepiteliais e carcinoma invasivo, foram convocadas para colposcopia e todas as mulheres com histopatológico de carcinoma foram tratadas e permanecem em seguimento no HCB. Os resultados deste programa foram comparados com dados do registro sobre câncer do colo do útero do Departamento Regional de Saúde V (DRS-V) e da Fundação Oncocentro de São Paulo (FOSP), do mesmo período. Resultados: Na zona urbana 10.350 (61,4%) mulheres foram examinadas e realizaram o exame de Papanicolaou, com taxa de cobertura de 62,9% nas mulheres em idade alvo (25 a 60 anos) do programa brasileiro. Foram identificados 35 casos de carcinoma, sendo 77,1% de carcinoma espinocelular in situ. A idade média foi 41,9 anos, 81,4% das mulheres examinadas eram das classes socioeconômicas D e E, e 88,6% apresentavam exame prévio de Papanicolaou. Na zona rural, 1.055 (100%) mulheres foram entrevistadas, examinadas e realizaram o exame de Papanicolaou, com taxa de cobertura de 74,4% na idade alvo. Foram identificados 6 casos de carcinoma, sendo 83,3% de carcinoma espinocelular in situ. A idade média foi de 39,8 anos, 86,7% nas classes socioeconômicas D e E, e 81,0% das mulheres apresentavam exame de Papanicolaou prévio. Analisamos os dados do programa de rastreamento do HCB e comparamos com os dados, em relação ao estadiamento, da DRS-V e FOSP, no mesmo período. Está análise mostrou que houve uma prevalência de lesões in situ em relação às invasivas no programa de rastreamento do HCB quando comparado à DRS-V (p=0,005) e à FOSP (p<0,001). Conclusões: O rastreamento com busca ativa e unidade móvel é um método efetivo no diagnóstico precoce do câncer do colo do útero / Introduction: Uterine cervical cancer is a public health problem and an important cause of morbidity and mortality among women worldwide. Screening using the Papanicolaou cytological test, when done repeatedly, has been shown to be effective for reducing the incidence and mortality of this disease in developed countries. Screening with an active search using a mobile unit is a strategy for early diagnosis of uterine cervical cancer. Objective: To evaluate the results from a screening program with an active search using a mobile unit for early detection of uterine cervical cancer among the populations in the urban and rural zones of Barretos. Sample and Methods: This was a retrospective descriptive study on 16,849 women in the urban zone and 1,055 in the rural zone of Barretos. The project included repeated home visits by a healthcare professional from the mobile unit of Barretos Cancer Hospital (HCB), interviews and collection of Papanicolaou smears. Women with a cytological diagnosis of ASC-US, ASC-H, intraepithelial lesions and invasive carcinoma were called in for colposcopy examinations. All the women with a histopathological diagnosis of carcinoma were treated and remained under follow-up by HCB. The results were compared with data from the uterine cervical cancer records of the Fifth Regional Health Department (DRS-V) and the Oncocenter Foundation of São Paulo (FOSP), covering the same period. Results: From the urban zone, 10,350 Papanicolaou smears (61.4%) were collected, with a coverage rate of 62.9% of the women at the target age for the Brazilian program. There were 35 cases of carcinoma, of which 77.1% were in situ squamous cell carcinoma. The womens mean age was 41.9 years; 81.4% were in socioeconomic classes D and E; and 88.6% had had a previous Papanicolaou examination. In the rural zone, 1,055 Papanicolaou smears (100.0%) were collected, with a coverage rate of 74.4% of the women at the target age. There were six cases of carcinoma, of which 83.3% were in situ squamous cell carcinoma. The womens mean age was 39.8 years; 86.7% were in socioeconomic classes D and E; and 81.0% had had a previous Papanicolaou examination. We analyzed the data from the HCB screening program in comparison with the staging data from DRS-V and FOSP, over the same period. There were statistically significant differences in the proportions of in situ and invasive carcinoma found in the HCB screening program in relation to DRS-V (p = 0.0046) and in relation to FOSP (p < 0.001). This analysis showed that there was higher prevalence of in situ lesions than of invasive lesions in the HCB screening program. Conclusions: Screening with an active search using a mobile unit is an effective method for early diagnosis of uterine cervical cancer
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Untangling Neoliberalism’s Gordian Knot: Cancer Prevention and Control Services for Rural Appalachian PopulationsBills, George F 01 January 2013 (has links)
In eastern Kentucky, as in much of central Appalachia, current local storylines narrate the frictions and contradictions involved in the structural transition from a post-WWII Fordist industrial economy and a Keynesian welfare state to a Post-Fordist service economy and Neoliberal hollow state, starving for energy to sustain consumer indulgence (Jessop, 1993; Harvey, 2003; 2005). Neoliberalism is the ideological force redefining the “societal infrastructure of language” that legitimates this transition, in part by redefining the key terms of democracy and citizenship, as well as valorizing the market, the individual, and technocratic innovation (Chouliaraki & Fairclough, 1999; Harvey, 2005). This project develops a perspective that understands cancer prevention and control in Appalachiaas part of the structural transition that is realigning community social ties in relation to ideological forces deployed as “commonsense” storylines that “lubricate” frictions that complicates the transition.
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