Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 8 de 8
Filtrar
1.
Cancer Causes Control ; 35(1): 93-101, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37574489

RESUMO

PURPOSE: Reducing time between cancer screening, diagnosis, and initiation of treatment is best achieved when services are available in the same hospital. Yet, comprehensive cancer centers are typically unavailable in low- and middle-income countries (LMICs), where resources are limited and services scattered. This study explored the impact of establishing an in-house pathology laboratory at the largest public cancer hospital in Tanzania on the downstaging of cervical cancer. METHODS: We examined clinical datasets of 8,322 cervical cancer patients treated at the Ocean Road Cancer Institute (ORCI). The first period included patients treated from 2002 to 2016, before establishment of the pathology laboratory at ORCI; the second period (post-pathology establishment) included data from 2017 to 2020. Logistic regression analysis evaluated the impact of the pathology laboratory on stage of cervical cancer diagnosis. RESULTS: Patients treated during the post-pathology period were more likely to be clinically diagnosed at earlier disease stages compared to patients in the pre-pathology period (pre-pathology population diagnosed at early disease stage: 44.08%; post-pathology population diagnosed at early disease stage: 59.38%, p < 0.001). After adjustment for age, region of residence, and place of biopsy, regression results showed patients diagnosed during the post-pathology period had higher odds of early stage cervical cancer diagnosis than patients in the pre-pathology period (OR 1.35, 95% CI (1.16, 1.57), p < 0.001). CONCLUSIONS: Integrated and comprehensive cancer centers can overcome challenges in delivering expedited cervical cancer diagnosis and treatment. In-house pathology laboratories play an important role in facilitating timely diagnosis and rapid treatment of cervical and possibly other cancers in LMICs.


Assuntos
Neoplasias do Colo do Útero , Feminino , Humanos , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/terapia , Tanzânia/epidemiologia , Colo do Útero , Detecção Precoce de Câncer/métodos , Biópsia
2.
Osteoporos Int ; 34(4): 693-701, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36692543

RESUMO

We evaluated the influence of two endogenous hormones on bone health in older women. Higher FSH was associated with bone disease, especially in lower estradiol environments. FSH attenuated the relationship between estradiol and bone. This may provide a mechanism through which future clinical research intervenes on bone loss. INTRODUCTION/PURPOSE: Despite preclinical evidence for an inverse association of follicle-stimulating hormone (FSH) and bone mineral density (BMD), no large epidemiologic studies have evaluated the separate and joint influences of FSH and estradiol on bone in postmenopausal women. METHODS: In a cross-sectional study of 675 postmenopausal women, we evaluated associations of serum FSH and dual X-ray absorptiometry (DXA)-classified areal BMD as well as low bone mass or osteoporosis (T-score < - 1.0) of the femoral neck and total hip. We stratified this analysis by serum estradiol (cut at the median). We tested whether FSH mediates the association of estradiol and BMD using the Sobel test. RESULTS: In linear regression models, there was a significant inverse association of serum FSH with both femoral neck and total hip BMD (both p < 0.01) when adjusted for age, hormone therapy (HT) use, and diabetes. In fully adjusted logistic regression models, women in the highest FSH tertile had higher odds of low bone mass/osteoporosis at the femoral neck (OR = 2.98; 95% CI = 1.86-4.77) and at the total hip (OR = 1.74; 95% CI = 1.06-2.84) compared to those in the lowest FSH tertile. We report evidence of effect modification by estradiol in stratified models and an interaction term. FSH met all criteria of a mediator, including an estimated 70% attenuation of the estradiol-BMD relationship (Sobel p value < 0.001). CONCLUSIONS: FSH is associated with higher odds of having low bone mass/osteoporosis even after accounting for HT use. FSH is a mediator of the relationship between estradiol and BMD in healthy postmenopausal women. Larger, prospective studies of FSH concentrations and bone health are needed.


Assuntos
Osteoporose Pós-Menopausa , Osteoporose , Feminino , Humanos , Idoso , Hormônio Foliculoestimulante , Pós-Menopausa , Estudos Transversais , Estudos Prospectivos , Estradiol , Densidade Óssea , Absorciometria de Fóton
3.
Cancer Causes Control ; 33(3): 373-379, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35000039

RESUMO

PURPOSE: There is increasing evidence that exposures in utero and in infancy impact breast cancer risk. No previous studies have evaluated these associations among women in Puerto Rico. METHODS: In a population-based case-control study of breast cancer epidemiology in the San Juan metropolitan area in Puerto Rico, we examined the association of early life factors with breast cancer risk and breast cancer risk factors. Both cases (n = 315) and controls (n = 348) completed interviewer-administered questionnaires, including self-reported birth country, birthweight, and history of having been breastfed. Comparisons of characteristics of those with and without the early life factors were made with t-tests or chi-squared tests; associations between early life factors and breast cancer risk were estimated with unconditional logistic regression adjusting for age, education, body mass index (BMI), age at menarche, parity, and menopausal status. RESULTS: Women who had been breastfed tended to have higher adult body mass index (BMI), higher education, and lower parity (p < 0.05). Higher birthweight was associated with higher adult BMI and lower educational attainment (p < 0.05). Those born outside of Puerto Rico or the US were more likely to have higher educational attainment and earlier age at menarche than those born within Puerto Rico or the US (p < 0.05). We found no significant associations between any of the early life factors and breast cancer risk. CONCLUSION: We did not find evidence of an association of early life factors with breast cancer risk among women in Puerto Rico.


Assuntos
Neoplasias da Mama , Adulto , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/etiologia , Estudos de Casos e Controles , Feminino , Humanos , Paridade , Gravidez , Porto Rico/epidemiologia , Fatores de Risco
4.
Cancer Causes Control ; 32(4): 401-407, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33559768

RESUMO

Globally, the highest cervical cancer mortality rates are found in East Africa. Visual inspection with acetic acid (VIA)-based screening in resource-poor settings has been shown to decrease the proportion of women presenting with late-stage cervical cancer, a process known as clinical downstaging. The only cancer treatment center in Tanzania, Ocean Road Cancer Institute (ORCI) in Dar es Salaam, opened a VIA-based cervical cancer screening program in 2002. We reviewed 6,676 medical records of cervical cancer patients at the ORCI from 2002-2011 to 2014-2018 for stage at diagnosis and screening status, among other variables. We investigated whether clinical downstaging occurred in this period among women screened at the ORCI, when compared to unscreened women. Our results indicated that the proportion of women presenting with late-stage cervical cancer among women screened at the ORCI decreased by 27.7% over the 16-year period (χ2 = 16.99; p = 0.0002). Among unscreened women, a non-significant 13.2% decrease in late-stage disease was observed (χ2 = 1.74; p = 0.4179). Our results suggest clinical downstaging occurred among women screened at the ORCI over the 16-year period, and this difference may be attributed to the screening program as the same decrease in stage was not observed among unscreened women during the same time period. At present, less than one percent of Tanzanian women receive yearly cervical cancer screenings. Access to screening through expansion of the ORCI screening clinic and the creation of more clinics should be prioritized.


Assuntos
Neoplasias do Colo do Útero/diagnóstico , Ácido Acético , Adulto , Idoso , Detecção Precoce de Câncer/métodos , Feminino , Humanos , Programas de Rastreamento/métodos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Tanzânia , Neoplasias do Colo do Útero/patologia
5.
J Cancer Educ ; 36(Suppl 1): 55-61, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34160754

RESUMO

Global fieldwork is an invaluable educational experience for students who aspire to pursue careers as global public health professionals and cancer experts. Student-led research projects can be mutually beneficial for students and host institutions by providing opportunities for bilateral learning, sharing resources, building databases, and ultimately creating uniquely informed multi-cultural health research relevant to global communities. The USA-host country partnerships can be delicate, requiring tactful approaches to the investment in the careers of students and the field projects. The US and host institutions must therefore be selective in determining which students have the privilege of participating in global field work. This paper examines the importance of grit as a character trait contributing to the success of student-led global health research projects. Grit has been explored at length as a predictor of student success in domestic educational experiences, yet is underrepresented in the context of global education, field training, and evaluation of research and learning outcomes. This manuscript utilizes testimonials of three public health graduate students recently returned from summer cancer epidemiology education training fellowships to explore the role that grit played in completion of their independent research projects. Ultimately, this paper discusses ways to identify grit in student applicants and to foster an improved capacity for grit before, during, and after their field experiences. We share the experiences with an aim of providing participant perspectives that may be used by educators, students, and administrators at US and international partner institutions to inform global research, experiential learning, and educational and training programs.


Assuntos
Educação em Enfermagem , Estudantes , Saúde Global , Humanos , Aprendizagem , Aprendizagem Baseada em Problemas
6.
Transl Lung Cancer Res ; 13(8): 1877-1887, 2024 Aug 31.
Artigo em Inglês | MEDLINE | ID: mdl-39263014

RESUMO

Background: Despite its efficacy in reducing lung cancer (LC)-specific mortality by 20%, screening with low-dose computed tomography (LDCT) in eligible groups remains low (5-16%). Black individuals are more commonly affected by LC than other racial/ethnic groups in the United States (U.S.) but less likely to undergo LC screening (LCS). Our study aimed to explore the knowledge and beliefs of Black individuals at high risk regarding LCS. Methods: Black individuals (n=17) who met the 2021 United States Preventive Services Task Force (USPSTF) LCS eligibility criteria were recruited in upstate New York. In-depth semi-structured interviews were conducted, audio recorded, and transcribed to explore knowledge and beliefs that could influence the uptake of LCS. A qualitative thematic analysis method was used to identify and analyze themes within the data. Results: We identified principal themes about LC and LCS. Although most participants reported that smoking was the major risk factor for LC, some participants placed more emphasis on other factors as the major risk factors for LC and de-emphasized the role of smoking. Most participants were not aware that screening for LC existed. Several barriers and facilitators for LCS were identified. Conclusions: Awareness about LCS among Black individuals is low. Addressing barriers may help increase LCS rates among Black individuals, ultimately reducing their LC mortality. The findings from our study have important implications in designing more effective interventions involving community health workers and healthcare clinicians to increase LCS uptake among Black individuals at high risk.

7.
J Immigr Minor Health ; 25(5): 1207-1210, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37084018

RESUMO

Current guidelines recommend that physicians use a shared decision-making (SDM) approach to engage with patients on the potential benefits and harms of prostate cancer screening based on their individual risk. In a sample of 4,118 men aged 55-69 from the 2018 New York State Behavioral Risk Factor Surveillance Survey (BRFSS), we compared the frequency of screening recommendations and SDM conversations according to four race/ethnic groups. In logistic regression, we evaluated the likelihood of SDM conversations between race/ethnic groups. Our findings suggest that the odds of never having a SDM conversation with their healthcare provider were significantly higher among Hispanic men (OR 95% CI: 2.10, 1.11-3.99) and other/multiracial men (OR, 95% CI: 3.08, 1.46-6.52) compared to white men, while black men had comparable odds (1.52, 0.98-2.34). The lower frequency of SDM conversation among Hispanic and other/multiracial men suggest a missed opportunity for healthcare providers to guide informed screening decisions.


Assuntos
Neoplasias da Próstata , Masculino , Humanos , Neoplasias da Próstata/diagnóstico , Antígeno Prostático Específico , New York , Tomada de Decisões , Detecção Precoce de Câncer , Prevalência , Programas de Rastreamento
8.
J Clin Endocrinol Metab ; 107(8): e3455-e3462, 2022 07 14.
Artigo em Inglês | MEDLINE | ID: mdl-35435955

RESUMO

CONTEXT: Evidence from animal studies suggests that the gradual rise in follicle-stimulating hormone (FSH) during reproductive senescence may contribute to the change in adiposity distribution characteristic of menopause. The potential independent role the interrelationships of FSH and estradiol (E2) may play in postmenopausal adiposity changes are not well studied. OBJECTIVE: Our objective was to evaluate the associations of FSH and dual x-ray absorptiometry (DXA)-derived adiposity measures, with consideration of estradiol and postmenopausal hormone therapy use. METHODS: In a sample of 667 postmenopausal women from the Women's Health Initiative Buffalo OsteoPerio Ancillary Study, we studied the associations of serum FSH and E2 levels with dual x-ray absorptiometry (DXA)-derived adiposity measures via cross-sectional and longitudinal analyses (5-year follow-up). RESULTS: In cross-sectional analyses, FSH levels were inversely associated with all measures of adiposity in models adjusted for age, years since menopause, smoking status, pack-years, and hormone therapy (HT) use; these associations were not influenced by adjustment for serum E2. In longitudinal analyses, the subset of women who discontinued HT over follow-up (n = 242) experienced the largest increase in FSH (+33.9 mIU/mL) and decrease in E2 (-44.3 pg/mL) and gains in all adiposity measures in unadjusted analyses. In adjusted analyses, an increase in FSH was associated with a gain in percentage of total body fat, total body fat mass, and subcutaneous adipose tissue (SAT). CONCLUSION: While cross-sectional findings suggest that FSH is inversely associated with adiposity, our longitudinal findings suggest that greater increases in FSH were associated with greater increases in percentage of total body fat, total body fat mass, and SAT. Future studies are needed to provide additional insight into FSH-adiposity mechanisms in larger samples.


Assuntos
Adiposidade , Hormônio Foliculoestimulante , Pós-Menopausa , Estudos Transversais , Estradiol , Feminino , Hormônio Foliculoestimulante/sangue , Humanos , Menopausa
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA