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1.
Artigo em Inglês | MEDLINE | ID: mdl-38073271

RESUMO

Rumination and worry are common risk factors of depression and anxiety. Internet-based transdiagnostic interventions targeting individuals with these specific risks may be an effective way to prevent depression and anxiety. This three-arm randomized controlled trial compared the efficacy of Internet-based rumination-focused cognitive behavioral therapy (RFCBT), mindfulness-based intervention (MBI), and psychoeducation (EDU) control among 256 at-risk individuals. Participants' levels of rumination, worry, depressive, and anxiety symptoms were assessed at post-intervention (6 weeks), 3-month, and 9-month follow-ups. Linear mixed model analysis results showed similar levels of improvement in all outcomes across the three conditions. Changes in rumination differed comparing RFCBT and MBI, where a significant reduction in rumination was noted at a 3-month follow-up among participants in RFCBT, and no significant long-term effect among participants in MBI was noted at a 9-month follow-up. All three conditions showed similar reductions in risks and symptoms, implying that the two active interventions were not superior to EDU control. The high attrition at follow-ups suggested a need to exercise caution when interpreting the findings. Future studies should tease apart placebo effect and identify ways to improve adherence.

2.
Biocell ; 47(8): 1835-1852, 2023 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-37771344

RESUMO

Backgorund: Fruits and seed extracts of Annona montana have significant cytotoxic potential in several cancer cells. This study evaluates the effect of A. montana leaves hexane extract on several signaling cascades and gene expression in metastatic breast cancer cells upon insulin-like growth factor-1 (IGF-1) stimulation. Methods: MTT assay was performed to determine the proliferation of cancer cells. Propidium iodide staining and flow cytometry analysis of Annexin V binding was utilized to measure the progression of the cell cycle and the induction of apoptosis. Protein expression and phosphorylation were determined by western blotting analysis to examine the underlying cellular mechanism triggered upon treatment with A. montana leaves hexane extract. Results: A. montana leaves hexane (sub-fraction V) blocked the constitutive stimulation of the PI3K/mTOR signaling pathways. This inhibitory effect was associated with apoptosis induction as evidenced by the positivity with Annexin V and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNNEL) staining, activation of caspase-3, and cleavage of PPAR. It also limited the expression of various downstream genes that regulate proliferation, survival, metastasis, and angiogenesis (i.e., cyclin D1, survivin, COX-2, and VEGF). It increased the expression of p53 and p21. Interestingly, we also observed that this extract blocked the activation of AKT and ERK without affecting the phosphorylation of the IGF-1 receptor and activation of Ras upon IGF-1 stimulation. Conclusion: Our study indicates that A. montana leaves (sub-fraction V) extract exhibits a selective anti-proliferative and proapoptotic effect on the metastatic MDA-MB-231 breast cancer cells through the involvement of PI3K/AKT/mTOR/S6K1 pathways.

3.
JMIR Form Res ; 7: e42683, 2023 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-36976634

RESUMO

BACKGROUND: Patient navigation (PN) programs have demonstrated efficacy in improving health outcomes for marginalized populations across a range of clinical contexts by addressing barriers to health care, including social determinants of health (SDoHs). However, it can be challenging for navigators to identify SDoHs by asking patients directly because of many factors, including patients' reluctance to disclose information, communication barriers, and the variable resources and experience levels of patient navigators. Navigators could benefit from strategies that augment their ability to gather SDoH data. Machine learning can be leveraged as one of these strategies to identify SDoH-related barriers. This could further improve health outcomes, particularly in underserved populations. OBJECTIVE: In this formative study, we explored novel machine learning-based approaches to predict SDoHs in 2 Chicago area PN studies. In the first approach, we applied machine learning to data that include comments and interaction details between patients and navigators, whereas the second approach augmented patients' demographic information. This paper presents the results of these experiments and provides recommendations for data collection and the application of machine learning techniques more generally to the problem of predicting SDoHs. METHODS: We conducted 2 experiments to explore the feasibility of using machine learning to predict patients' SDoHs using data collected from PN research. The machine learning algorithms were trained on data collected from 2 Chicago area PN studies. In the first experiment, we compared several machine learning algorithms (logistic regression, random forest, support vector machine, artificial neural network, and Gaussian naive Bayes) to predict SDoHs from both patient demographics and navigator's encounter data over time. In the second experiment, we used multiclass classification with augmented information, such as transportation time to a hospital, to predict multiple SDoHs for each patient. RESULTS: In the first experiment, the random forest classifier achieved the highest accuracy among the classifiers tested. The overall accuracy to predict SDoHs was 71.3%. In the second experiment, multiclass classification effectively predicted a few patients' SDoHs based purely on demographic and augmented data. The best accuracy of these predictions overall was 73%. However, both experiments yielded high variability in individual SDoH predictions and correlations that become salient among SDoHs. CONCLUSIONS: To our knowledge, this study is the first approach to applying PN encounter data and multiclass learning algorithms to predict SDoHs. The experiments discussed yielded valuable lessons, including the awareness of model limitations and bias, planning for standardization of data sources and measurement, and the need to identify and anticipate the intersectionality and clustering of SDoHs. Although our focus was on predicting patients' SDoHs, machine learning can have a broad range of applications in the field of PN, from tailoring intervention delivery (eg, supporting PN decision-making) to informing resource allocation for measurement, and PN supervision.

4.
Front Psychiatry ; 13: 966080, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35990062

RESUMO

Objectives: The Augmented Reality Games to Enhance Vocational Ability of Patients (REAP) was an augmented reality vocational training program that provided skills training in the context of a psychiatric rehabilitation program. It was implemented over 10 weeks and consisted of gamified augmented reality café training scenarios and bridging group activities to facilitate transfer of learning to the work context. This pilot study aimed to explore the acceptability and effectiveness of the REAP program when carried out with adults with intellectual and developmental disabilities attending work therapy. Its objectives were: (1) to obtain feedback from participants and trainers on their experiences and acceptability of the REAP program and (2) to measure changes in vocational and cognitive skills of participants in the REAP program. Materials and methods: This was a pretest-posttest mixed methods study. 15 adults with intellectual and developmental disabilities attending work therapy in a non-profit organization participated in the REAP program and their vocational trainers were involved in assisting in this program. Feasibility Evaluation Checklist (FEC) and the Neurobehavioral Cognitive Status Exam (Cognistat) were administered at baseline, post-training and eight weeks after training. The participants and their trainers also provided user feedback via semi-structured interviews. Results: Majority of the participants and trainers found the REAP program to be useful and interesting. They also found that the augmented reality games were user-friendly and provided a unique opportunity to acquire new skills. Participants who engaged in this program showed a significant improvement in vocational skills and aspects of cognitive skills, which were maintained eight weeks after training. Conclusion: The gamified augmented reality vocational training was feasible and accepted by both adults with intellectual and developmental disabilities and their trainers. When integrated with bridging sessions to facilitate transfer of learning to existing work therapy, participants on the REAP program showed significant improvements in vocational skills and aspects of cognitive skills. Future experimental studies with larger sample size could provide stronger evidence on its effectiveness in improving vocational outcomes.

5.
BMC Womens Health ; 22(1): 28, 2022 02 04.
Artigo em Inglês | MEDLINE | ID: mdl-35120523

RESUMO

BACKGROUND: Chinese Americans have lower breast and cervical cancer screening rates than the national average and experience multiple barriers to cancer care. Patient navigators have improved screening and follow-up rates for medically underserved populations, yet investigations of cancer navigation programs and their implementation among Chinese Americans are limited. To address this gap, we used the Consolidated Framework for Implementation Research (CFIR) to examine facilitators and barriers to implementing the Chicago-based Chinatown Patient Navigation Program (CPNP) for breast and cervical cancer screening, follow-up, and treatment. METHODS: Stakeholders from clinical care, supportive care services, and community organizations were invited to participate in qualitative interviews to illuminate implementation processes and stakeholder perspectives of facilitators and barriers to implementing the CPNP. Interviews were audio-recorded, transcribed, and deductively coded according to CFIR domains, including (1) intervention characteristics; (2) outer setting; (3) inner setting; and (4) the implementation process. RESULTS: We interviewed a convenience sample of 16 stakeholders representing a range of roles in cancer care, including nurses, clinical team members, administrators, physicians, a community-based organization leader, and a CPNP navigator. Findings detail several facilitators to implementing the CPNP, including patient navigators that prepared Chinese-speaking patients for their clinic visits, interpretation services, highly accessible patient navigators, and high-quality flexible services. Barriers to program implementation included limited regular feedback provided to stakeholders regarding their program involvement. Also, early in the program's implementation there was limited awareness of the CPNP navigators' roles and responsibilities, insufficient office space for the navigators, and few Chinese language patient resource materials. CONCLUSIONS: These findings provide valuable information on implementation of future patient navigation programs serving Chinese American and other limited-English speaking immigrant populations.


Assuntos
Emigrantes e Imigrantes , Navegação de Pacientes , Neoplasias do Colo do Útero , China , Detecção Precoce de Câncer , Feminino , Humanos , Idioma , Pesquisa Qualitativa , Neoplasias do Colo do Útero/diagnóstico
6.
Biocell ; 46(3): 567-578, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34970018

RESUMO

The Annona genus is a member of Annonaceae, one of the largest families of plants across tropical and subtropical regions. This family has been used in several ethnomedicinal practices to treat a multitude of human diseases. However, the molecular mechanism underlying its effect on the lipid droplet formation and on the expression of adipogenic markers of this plant remain to be investigated. In this study, we examined whether the extracts from the aerial part of Annona montana affect in vitro differentiation of preadipocytes. For our investigations, both mouse embryo fibroblast 3T3-L1 and normal human primary subcutaneous preadipocytes were incubated with Annona montana extracts (-and its subfractions-) and then analyzed on preadipocyte differentiation, lipid content, lipid droplet size and number, the expression of adipogenic-specific transcriptional factors, as well as cell survival. From our examinations, we found the Annona montana ethyl acetate extract to exhibit a potent inhibitory effect on adipogenesis, without affecting cell survival, in a dose-dependent manner. Such inhibitory effects included a significant decrease in the accumulation of lipid content by both a dramatic reduction of size and number of lipid droplets. This extract strongly attenuated the expression of PPARγ and HMGB2. It also inhibited the expression of CEBPα, FAS, and Akt without influencing Erk1/2 activities. Our findings suggest that specifically, the Annona montana ethyl acetate extract has a prominent inhibitory effect in cellular pathways of adipocyte differentiation by modulating specific gene expression, which is known to perform a pivotal role during adipogenesis.

7.
BMJ Open ; 11(8): e051052, 2021 08 25.
Artigo em Inglês | MEDLINE | ID: mdl-34433608

RESUMO

OBJECTIVES: This is a qualitative study which aims to understand the lived experience of dietary changes among Chinese survivors of colorectal cancer who participated in a dietary intervention. SETTING: The surgical and oncological departments of four public hospitals in Hong Kong. PARTICIPANTS: Fifty-five Chinese colorectal cancer survivors who were aged 18 years or above and had received potentially curative treatment in the surgical and oncological departments in Hong Kong were examined. Participants' mean age was 64 years, with 29 (53%) males. INTERVENTION: A 12-month dietary intervention delivered via face-to-face motivational interviews, fortnightly motivational phone calls, monthly electronic pamphlets, quarterly newsletters and quarterly group meeting. OUTCOME MEASURE: We adopted the qualitative approach to capture participants' perspectives and to apply the understanding pragmatically in everyday life. Content analysis was conducted. RESULTS: We identified themes of motives to changes of dietary practices including (1) individual commitment to dietary change; (2) adaptive strategies in interpersonal contexts and (3) working with healthcare professionals during the journey. CONCLUSIONS: The findings demonstrated how Chinese custom and culture posing unique challenges to colorectal cancer survivors and the need of having dietary advice from healthcare professionals. Participants were motivated to change their eating habits by support from family, friends and healthcare professionals. Our findings could help healthcare professionals provide specific dietary advice and guidance to Chinese colorectal cancer survivors. TRIAL REGISTRATION NUMBER: NCT01708824.


Assuntos
Sobreviventes de Câncer , Neoplasias Colorretais , China , Hong Kong , Humanos , Masculino , Pessoa de Meia-Idade , Sobreviventes
8.
J Immigr Minor Health ; 23(4): 699-706, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33515161

RESUMO

Chinese Americans have among the lowest rates of up-to-date cancer screening in the United States. Fatalistic health beliefs are also common in this population and can lead to decreased healthcare utilization. We sought to understand how these fatalistic beliefs are associated with cancer screening behaviors in this underserved population. A cross-sectional survey was conducted with 732 Chinese women from the greater Chinatown area of Chicago, Illinois. Surveyed questions included sociodemographic information, self-reported healthcare utilization and cancer screening behaviors. The majority of respondents were older than 50, spoke Chinese, had less than a college education, public or no medical insurance, and an annual income < $20,000. Approximately 20% had never received Papanicolaou or mammogram screening. Fatalistic beliefs were common and associated with increased health-seeking behaviors and appropriate Pap and mammogram screening. In this cohort of Chinese American immigrant women in an urban Chinatown community, fatalistic cancer beliefs were prevalent and associated with increased health-seeking and positive cancer screening behaviors. This previously unreported relationship could be leveraged in improving health outcomes of an underserved population.


Assuntos
Neoplasias da Mama , Emigrantes e Imigrantes , Neoplasias , Neoplasias do Colo do Útero , Asiático , Neoplasias da Mama/diagnóstico , Estudos Transversais , Detecção Precoce de Câncer , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Programas de Rastreamento , Neoplasias/diagnóstico , Estados Unidos/epidemiologia
9.
Ethn Health ; 26(6): 893-910, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-30691290

RESUMO

Objectives: Chinese American women living in linguistically isolated communities are among the least likely to utilize healthcare services. Qualitative research methods can help identify health system vulnerability points to improve local healthcare delivery for this population.Design: We conducted 6 focus groups among 56 Chinese-speaking adult women in Chicago's Chinatown between July and August 2014 to explore their perceptions of experiences receiving medical care and interacting with healthcare providers in Chinatown healthcare settings.Results: Health system/clinic infrastructure and patient-provider communications were perceived barriers to care at Chinatown healthcare settings. Chinese participants reported long wait times, difficulty scheduling appointments, and poor front desk customer service. Communication difficulties at Chinatown healthcare settings involved language barriers with non-Chinese-speaking providers, but consideration for healthcare providers, provider demeanor, and reliance on provider recommendation also hindered patient-provider communications.Conclusions: Findings improve understanding of barriers to care experienced by Chinese immigrant women in one urban Chinatown community.


Assuntos
Emigrantes e Imigrantes , Adulto , Asiático , Chicago/epidemiologia , China , Feminino , Acessibilidade aos Serviços de Saúde , Humanos , Pesquisa Qualitativa
10.
J Cancer Surviv ; 14(4): 424-433, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32072434

RESUMO

PURPOSE: To assess the effects of dietary and physical activity (PA) interventions on generic and cancer-specific quality of life (QoL), anxiety, and depression levels among adult Chinese colorectal cancer (CRC) survivors. METHODS: Two-hundred twenty-three adult CRC survivors within 1 year of completion of primary cancer treatment were randomized to receive dietary, PA or combined intervention, or usual care for a 12 monthduration, under a 2 (diet vs usual care) × 2 (PA vs usual care) factorial design. Generic and cancer-specific QoL was assessed using a Chinese version 12-Item Short Form Health Survey (SF-12) and the Functional Assessment of Cancer Therapy-Colorectal (FACT-C) scale, respectively. Anxiety and depression was assessed using the Hospital Anxiety and Depression Scale at baseline, 6, 12, 18, and 24 months. Linear mixed models were used for examining the intervention effects. RESULTS: Participants receiving dietary intervention experienced a significant improvement in the generic measure of QoL (SF-6D utility scores, mean difference 0.042, 95%CI 0.03 to 0.081) at 12 months, the cancer-specific QoL scores (mean difference 3.09, 95%CI 0.13 to 6.04), and levels of depression (P = 0.015) at both 12 and 24 months follow-up. Participants receiving PA intervention only demonstrated a significant improvement in SF-6D utility index (mean difference 0.039, 95%CI 0.002 to 0.077) and physical functioning (mean difference 2.85, 95%CI 1.00 to 4.70) at 6 months. CONCLUSIONS: Dietary intervention improved the generic and cancer-specific QoL and depression in CRC survivors. TRIAL REGISTRATION: The study was prospectively registered on 17 October 2012 at ClinicalTrials.gov (NCT01708824). IMPLICATIONS FOR CANCER SURVIVORS: CRC survivors can benefit from dietary interventions in alleviating depression and improving overall health-related QoL.


Assuntos
Ansiedade/terapia , Sobreviventes de Câncer/psicologia , Neoplasias Colorretais/terapia , Depressão/terapia , Dieta/psicologia , Exercício Físico/psicologia , Qualidade de Vida/psicologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias Colorretais/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Sobreviventes
11.
Health Serv Insights ; 12: 1178632919841376, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31037032

RESUMO

BACKGROUND: As health care reform continues within the United States, navigators may play increasingly diverse and vital roles across the health care continuum. The growing interest in patient navigation programs for underserved populations calls for detailed descriptions of intervention components to facilitate implementation and dissemination efforts. METHODS: In Chicago's Chinatown, Chinese immigrant women face language, cultural, and access barriers in obtaining breast and cervical cancer screening and follow-up. These barriers spurred the research partnership between Northwestern University, the Chinese American Service League, Mercy Hospital & Medical Center, and Rush University Medical Center to formalize the Chinatown Patient Navigation Collaborative for adapting and implementing previously developed patient navigation models. RESULTS: In this report, we describe the adaptation of patient navigation to build the Chinatown Patient Navigation Collaborative's community-based patient navigation program for breast and cervical cancer. We offer insights into the roles of community patient navigators in safety net hospital and underserved Chinese immigrant communities, and describe implications for patient navigation initiatives to maximize community benefits by improving access to health care for vulnerable populations. CONCLUSIONS: Our adaptation and implementation of a patient navigation intervention in Chicago's Chinatown illustrates promising approaches for future navigator research.

13.
Health Equity ; 2(1): 182-192, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30283866

RESUMO

Purpose: Healthcare utilization and health-seeking behaviors of Chinese American immigrant women may be influenced by longstanding cultural perspectives of family roles and relationships. An understanding of Chinese immigrant women's perceptions of family social support in health and how these beliefs manifest in healthcare utilization and help-seeking behaviors is critical to the development of culturally appropriate health interventions. Focusing on a sample of Chinese women in Chicago's Chinatown, this qualitative study seeks to describe women's attitudes and beliefs about spouse and adult children's involvement in women's health and healthcare. Methods: We conducted six focus groups among 56 Chinese-speaking adult women in Chicago's Chinatown between July and August 2014. Focus groups were transcribed, coded, and analyzed for emergent themes. Results: Women reported that their adult children supported their health and healthcare utilization by helping them overcome language and transportation barriers, making and supporting decisions, and providing informational and instrumental support related to diet and nutrition. Women viewed these supports with mixed expectations of filial piety, alongside preferences to limit dependency and help-seeking because of concern and emotional distress regarding burdening adult children. Women's expectations of the spouse involvement in their healthcare were low and were shaped by avoidance of family conflict. Conclusion: Findings inform opportunities for the development of culturally appropriate interventions to enhance Chinese immigrant women's health and healthcare. These include patient navigation/community health worker programs to promote self-management of healthcare and family-centered strategies for enhancing family social support structures and reducing family conflict.

14.
Sci Rep ; 8(1): 5731, 2018 04 10.
Artigo em Inglês | MEDLINE | ID: mdl-29636539

RESUMO

There has been evidence on the protective effects of diets high in fiber and low in red and processed meat (RPM), and physical activity (PA) against colorectal cancer (CRC) development, but that against CRC recurrence has been limited. This study evaluated the efficacy of a behavioral program comprising dietary and PA interventions in improving Chinese CRC survivors' lifestyle. A 2 × 2 factorial randomized controlled trial of 223 CRC patients (82 females, mean age 65), randomly assigned to receive dietary, PA or both interventions, or usual care for 12 months, and assessed every 6 months for 24 months. Primary outcomes included two dietary and two PA targets. Secondary outcomes included changes in dietary consumptions and PA levels. Dietary interventions significantly increased the odds of achieving the targets of consuming less RPM at all time-points (OR 3.22-4.57, all p < 0.01) and refined grain (RG) at months 6 (OR 3.13, p = 0.002) and 24 (OR 2.19, p = 0.039), and reduced RPM (2.49-3.48 servings/week, all p < 0.01) and RG (0.31-0.5 servings/day, all p < 0.01) consumptions. Patients receiving PA interventions potentially spent more time on moderate-to-vigorous PA. This study demonstrated the efficacy of a behavioral program in improving dietary habits of Chinese CRC survivors.


Assuntos
Sobreviventes de Câncer , Neoplasias Colorretais/epidemiologia , Dieta , Exercício Físico , Qualidade de Vida , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias Colorretais/terapia , Feminino , Comportamentos Relacionados com a Saúde , Humanos , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Razão de Chances , Vigilância em Saúde Pública
15.
Singapore Med J ; 55(8): 411-4; quiz 415, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25189301

RESUMO

The Academy of Medicine (AMS) and the Ministry of Health (MOH) have developed the clinical practice guidelines on Attention Deficit Hyperactivity Disorder (ADHD) to provide doctors and patients in Singapore with evidence-based treatment for ADHD. This article reproduces the introduction and executive summary (with recommendations from the guidelines) from the MOH clinical practice guidelines on ADHD, for the information of SMJ readers. Chapters and page numbers mentioned in the reproduced extract refer to the full text of the guidelines, which are available from the Ministry of Health website: http://www.moh.gov.sg/content/moh_web/healthprofessionalsportal/doctors/guidelines/cpg_medical.html.The recommendations should be used with reference to the full text of the guidelines. Following this article are multiple choice questions based on the full text of the guidelines.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Transtorno do Deficit de Atenção com Hiperatividade/terapia , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Cuidadores , Criança , Medicina Baseada em Evidências , Humanos , Metilfenidato/uso terapêutico , Pais , Psiquiatria/métodos , Psiquiatria/normas , Singapura , Sociedades Médicas
16.
BMC Public Health ; 13: 487, 2013 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-23688320

RESUMO

BACKGROUND: Colorectal cancer is the second most common cancer and cancer-killer in Hong Kong with an alarming increasing incidence in recent years. The latest World Cancer Research Fund report concluded that foods low in fibre, and high in red and processed meat cause colorectal cancer whereas physical activity protects against colon cancer. Yet, the influence of these lifestyle factors on cancer outcome is largely unknown even though cancer survivors are eager for lifestyle modifications. Observational studies suggested that low intake of a Western-pattern diet and high physical activity level reduced colorectal cancer mortality. The Theory of Planned Behaviour and the Health Action Process Approach have guided the design of intervention models targeting a wide range of health-related behaviours. METHODS/DESIGN: We aim to demonstrate the feasibility of two behavioural interventions intended to improve colorectal cancer outcome and which are designed to increase physical activity level and reduce consumption of a Western-pattern diet. This three year study will be a multicentre, randomised controlled trial in a 2x2 factorial design comparing the "Moving Bright, Eating Smart" (physical activity and diet) programme against usual care. Subjects will be recruited over a 12-month period, undertake intervention for 12 months and followed up for a further 12 months. Baseline, interim and three post-intervention assessments will be conducted.Two hundred and twenty-two colorectal cancer patients who completed curative treatment without evidence of recurrence will be recruited into the study. Primary outcome measure will be whether physical activity and dietary targets are met at the end of the 12-month intervention. Secondary outcome measures include the magnitude and mechanism of behavioural change, the degree and determinants of compliance, and the additional health benefits and side effects of the intervention. DISCUSSION: The results of this study will establish the feasibility of targeting the two behaviours (diet and physical activity) and demonstrate the magnitude of behaviour change. The information will facilitate the design of a further larger phase III randomised controlled trial with colorectal cancer outcome as the study endpoint to determine whether this intervention model would reduce colorectal cancer recurrence and mortality. TRIAL REGISTRATION: ClinicalTrials.gov No: NCT01708824.


Assuntos
Neoplasias Colorretais/prevenção & controle , Dieta , Terapia por Exercício , Recidiva Local de Neoplasia/prevenção & controle , Adulto , Feminino , Hong Kong , Humanos , Masculino , Sobreviventes , Resultado do Tratamento
17.
BMJ ; 344: e70, 2012 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-22294757

RESUMO

OBJECTIVE: To systematically evaluate the effects of physical activity in adult patients after completion of main treatment related to cancer. DESIGN: Meta-analysis of randomised controlled trials with data extraction and quality assessment performed independently by two researchers. DATA SOURCES: Pubmed, CINAHL, and Google Scholar from the earliest possible year to September 2011. References from meta-analyses and reviews. STUDY SELECTION: Randomised controlled trials that assessed the effects of physical activity in adults who had completed their main cancer treatment, except hormonal treatment. RESULTS: There were 34 randomised controlled trials, of which 22 (65%) focused on patients with breast cancer, and 48 outcomes in our meta-analysis. Twenty two studies assessed aerobic exercise, and four also included resistance or strength training. The median duration of physical activity was 13 weeks (range 3-60 weeks). Most control groups were considered sedentary or were assigned no exercise. Based on studies on patients with breast cancer, physical activity was associated with improvements in insulin-like growth factor-I, bench press, leg press, fatigue, depression, and quality of life. When we combined studies on different types of cancer, we found significant improvements in body mass index (BMI), body weight, peak oxygen consumption, peak power output, distance walked in six minutes, right handgrip strength, and quality of life. Sources of study heterogeneity included age, study quality, study size, and type and duration of physical activity. Publication bias did not alter our conclusions. CONCLUSIONS: Physical activity has positive effects on physiology, body composition, physical functions, psychological outcomes, and quality of life in patients after treatment for breast cancer. When patients with cancer other than breast cancer were also included, physical activity was associated with reduced BMI and body weight, increased peak oxygen consumption and peak power output, and improved quality of life.


Assuntos
Neoplasias da Mama/reabilitação , Exercício Físico/fisiologia , Avaliação de Resultados em Cuidados de Saúde/estatística & dados numéricos , Qualidade de Vida , Sobreviventes/estatística & dados numéricos , Adulto , Constituição Corporal/fisiologia , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/psicologia , Exercício Físico/psicologia , Fadiga/terapia , Feminino , Humanos , Atividade Motora/fisiologia , Ensaios Clínicos Controlados Aleatórios como Assunto/estatística & dados numéricos
18.
Int J Womens Health ; 2: 221-8, 2010 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-21072314

RESUMO

PURPOSE: Cervical cancer screening has been consistently shown to be effective in reducing the incidence rate and mortality from cervical cancer. However, cervical screening attendance rates are still far from satisfactory in many countries. Strategies, health promotion and education programs need to be developed with clear evidence of the causes and factors relating to the low attendance rate. The study aims to assess the prediction of cervical screening attendance rate by Chinese women's knowledge about cervical cancer and cervical screening as well as their perception of health. PATIENTS AND METHODS: A survey with self-reported questionnaires was conducted on 385 Chinese women recruited from a community clinic in Hong Kong. Participants were Chinese women, Hong Kong residents, aged 18-65 years, able to read Chinese or English, and were not pregnant. RESULTS: Women aged 37 years or less, with at least tertiary education, who perceived having control over their own health and had better knowledge on risk factors, were more likely to attend cervical cancer screening. Many participants had adequate general knowledge but were unable to identify correct answers on the risk factors. CONCLUSION: Health promotion efforts need to focus on increasing women's knowledge on risk factors and enhancing their perceived health control by providing more information on the link between screening and early detection with lower incidence rates and mortality from cervical cancer.

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