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1.
Menopause ; 30(9): 898-905, 2023 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-37527476

RESUMO

OBJECTIVE: The menopausal transition results in a progressive decrease in circulating estrogen levels. Experimental evidence in rodents has indicated that estrogen depletion leads to a reduction of energy expenditure and physical activity. It is unclear whether treatment with estrogen therapy increases physical activity level in postmenopausal women. METHODS: A total of 27,327 postmenopausal women aged 50-79 years enrolled in the Women's Health Initiative randomized double-blind trials of menopausal hormone therapy. Self-reported leisure-time physical activity at baseline, and years 1, 3, and 6 was quantified as metabolic equivalents (MET)-h/wk. In each trial, comparison between intervention and placebo groups of changes in physical activity levels from baseline to follow-up assessment was examined using linear regression models. RESULTS: In the CEE-alone trial, the increase in MET-h/wk was greater in the placebo group compared with the intervention group at years 3 ( P = 0.002) and 6 ( P < 0.001). Similar results were observed when analyses were restricted to women who maintained an adherence rate ≥80% during the trial or who were physically active at baseline. In the CEE + MPA trial, the primary analyses did not show significant differences between groups, but the increase of MET-h/wk was greater in the placebo group compared with the intervention group at year 3 ( P = 0.004) among women with an adherence rate ≥80%. CONCLUSIONS: The results from this clinical trial do not support the hypothesis that estrogen treatment increases physical activity among postmenopausal women.


Assuntos
Estrogênios Conjugados (USP) , Estrogênios , Feminino , Humanos , Saúde da Mulher , Menopausa , Exercício Físico , Terapia de Reposição de Estrogênios , Acetato de Medroxiprogesterona
2.
JAMA ; 330(6): 537-546, 2023 08 08.
Artigo em Inglês | MEDLINE | ID: mdl-37552302

RESUMO

Importance: Approximately 65% of adults in the US consume sugar-sweetened beverages daily. Objective: To study the associations between intake of sugar-sweetened beverages, artificially sweetened beverages, and incidence of liver cancer and chronic liver disease mortality. Design, Setting, and Participants: A prospective cohort with 98 786 postmenopausal women aged 50 to 79 years enrolled in the Women's Health Initiative from 1993 to 1998 at 40 clinical centers in the US and were followed up to March 1, 2020. Exposures: Sugar-sweetened beverage intake was assessed based on a food frequency questionnaire administered at baseline and defined as the sum of regular soft drinks and fruit drinks (not including fruit juice); artificially sweetened beverage intake was measured at 3-year follow-up. Main Outcomes and Measures: The primary outcomes were (1) liver cancer incidence, and (2) mortality due to chronic liver disease, defined as death from nonalcoholic fatty liver disease, liver fibrosis, cirrhosis, alcoholic liver diseases, and chronic hepatitis. Cox proportional hazards regression models were used to estimate multivariable hazard ratios (HRs) and 95% CIs for liver cancer incidence and for chronic liver disease mortality, adjusting for potential confounders including demographics and lifestyle factors. Results: During a median follow-up of 20.9 years, 207 women developed liver cancer and 148 died from chronic liver disease. At baseline, 6.8% of women consumed 1 or more sugar-sweetened beverage servings per day, and 13.1% consumed 1 or more artificially sweetened beverage servings per day at 3-year follow-up. Compared with intake of 3 or fewer servings of sugar-sweetened beverages per month, those who consumed 1 or more servings per day had a significantly higher risk of liver cancer (18.0 vs 10.3 per 100 000 person-years [P value for trend = .02]; adjusted HR, 1.85 [95% CI, 1.16-2.96]; P = .01) and chronic liver disease mortality (17.7 vs 7.1 per 100 000 person-years [P value for trend <.001]; adjusted HR, 1.68 [95% CI, 1.03-2.75]; P = .04). Compared with intake of 3 or fewer artificially sweetened beverages per month, individuals who consumed 1 or more artificially sweetened beverages per day did not have significantly increased incidence of liver cancer (11.8 vs 10.2 per 100 000 person-years [P value for trend = .70]; adjusted HR, 1.17 [95% CI, 0.70-1.94]; P = .55) or chronic liver disease mortality (7.1 vs 5.3 per 100 000 person-years [P value for trend = .32]; adjusted HR, 0.95 [95% CI, 0.49-1.84]; P = .88). Conclusions and Relevance: In postmenopausal women, compared with consuming 3 or fewer servings of sugar-sweetened beverages per month, those who consumed 1 or more sugar-sweetened beverages per day had a higher incidence of liver cancer and death from chronic liver disease. Future studies should confirm these findings and identify the biological pathways of these associations.


Assuntos
Bebidas Adoçadas Artificialmente , Neoplasias Hepáticas , Bebidas Adoçadas com Açúcar , Feminino , Humanos , Bebidas Adoçadas Artificialmente/efeitos adversos , Bebidas/efeitos adversos , Bebidas Gaseificadas/efeitos adversos , Cirrose Hepática/epidemiologia , Cirrose Hepática/etiologia , Cirrose Hepática/mortalidade , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/etiologia , Neoplasias Hepáticas/mortalidade , Hepatopatia Gordurosa não Alcoólica/epidemiologia , Hepatopatia Gordurosa não Alcoólica/etiologia , Hepatopatia Gordurosa não Alcoólica/mortalidade , Estudos Prospectivos , Fatores de Risco , Açúcares/efeitos adversos , Edulcorantes/efeitos adversos , Bebidas Adoçadas com Açúcar/efeitos adversos , Hepatopatias/epidemiologia , Hepatopatias/etiologia , Hepatopatias/mortalidade , Doença Crônica , Pessoa de Meia-Idade , Idoso
4.
J Smok Cessat ; 2023: 5535832, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37273658

RESUMO

Objective: The efficacy of individualized, community-based physical activity as an adjunctive smoking cessation treatment to enhance long-term smoking cessation rates was evaluated for the Lifestyle Enhancement Program (LEAP). Methods: The study was a two-arm, parallel-group, randomized controlled trial. All participants (n = 392) received cessation counseling and a nicotine patch and were randomized to physical activity (n = 199; YMCA membership and personalized exercise programming from a health coach) or an equal contact frequency wellness curriculum (n = 193). Physical activity treatment was individualized and flexible (with each participant selecting types of activities and intensity levels and being encouraged to exercise at the YMCA and at home, as well as to use "lifestyle" activity). The primary outcome (biochemically verified prolonged abstinence at 7-weeks (end of treatment) and 6- and 12-months postcessation) and secondary outcomes (7-day point prevalent tobacco abstinence (PPA), total minutes per week of leisure time physical activity and strength training) were assessed at baseline, 7 weeks, 6 months, and 12 months. Results: Prolonged abstinence in the physical activity and wellness groups was 19.6% and 25.4%, respectively, at 7-weeks, 15.1% and 16.6% at 6-months, and 14.1% and 17.1% at 12 months (all between-group P values >0.18). Similarly, PPA rates did not differ significantly between groups at any follow-up. Change from baseline leisure-time activity plus strength training increased significantly in the physical activity group at 7 weeks (P = 0.04). Across treatment groups, an increase in the number of minutes per week in strength training from baseline to 7 weeks predicted prolonged abstinence at 12 months (P ≤ 0.001). Further analyses revealed that social support, fewer years smoked, and less temptation to smoke were associated with prolonged abstinence over 12 months in both groups. Conclusions: Community-based physical activity programming, delivered as adjunctive treatment with behavioral/pharmacological cessation treatment, did not improve long-term quit rates compared to adjunctive wellness counseling plus behavioral/pharmacological cessation treatment. This trial is registered with https://beta.clinicaltrials.gov/study/NCT00403312, registration no. NCT00403312.

5.
Am Surg ; 89(11): 4485-4495, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35969481

RESUMO

OBJECTIVE: Enhanced Recovery ERP protocols (ERP) have improved surgical outcomes in patients undergoing elective colon cancer (CC) surgery; however, efficacy in different populations may vary. We examined the impact of an ERP in a population with high rates of obesity and multiple comorbidities. METHODS: We performed a retrospective analysis of factors associated with postoperative complications (PoC) and length of stay (LOS) following CC surgery from 2011 to 2019 in a 5-hospital healthcare system which serves a population with higher rates of obesity (body mass index ≥30kg/m2) and multi-comorbidities, as compared to published studies. Univariable and multivariable analyses were performed. RESULTS: A total of 408 elective CC surgery patients with complete oncologic surgical data were identified. Of these, 191 (46.81%) were under ERP. Factors independently associated with PoC included obesity (OR=1.66, P=.029), laparoscopic (OR=.52, P=.020), and hybrid (OR=.38, P=.012) versus open surgery and ASA (American Society of Anesthesiologists) class ≥3 (OR=1.98, P=.006). ERP did not impact PoC but was associated with a reduction in LOS (ß=-1.02 days, 95%CI: -1.75 - -.30, P=.006). ERP had an impact on LOS in both the non-obese and obese groups (P<.001 and P=.034, respectively). PoC significantly increased LOS (ß=6.67 days, 95%CI: 5.41-7.03, P<.001). CONCLUSIONS: Following elective CC surgery, obesity and medical comorbidities were associated with increased PoC and in turn, as expected, increased LOS. ERP was associated with a reduction in LOS in both obese and non-obese patients. In high-risk populations, application of ERP may be particularly important to optimize surgical outcomes following CC surgery.


Assuntos
Neoplasias do Colo , Procedimentos Cirúrgicos do Sistema Digestório , Humanos , Estudos Retrospectivos , Neoplasias do Colo/cirurgia , Neoplasias do Colo/complicações , Procedimentos Cirúrgicos do Sistema Digestório/efeitos adversos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Obesidade/complicações , Tempo de Internação
6.
Cancer Causes Control ; 33(5): 737-747, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35235084

RESUMO

PURPOSE: Lifestyle factors such as smoking, alcohol, body weight, physical activity, and diet quality have been associated with the risk of pancreatic cancer. However, studies of their combined association in women are limited. METHODS: Data on smoking habits, alcohol intake, diet composition, recreational physical activity, body weight, and waist circumference, obtained at recruitment for 136,945 postmenopausal women (aged 50-79 years) participating in the Women's Health Initiative study, were categorized separately, with higher scores for each variable assigned to the categories representing healthier behaviors. The combined healthy lifestyle index (HLI) score, created by summing the scores for each risk factor, was grouped into quartiles. We used multivariable-adjusted Cox regression to estimate hazard ratios (HR) and 95% confidence intervals (CI) for pancreatic cancer risk in association with the HLI. RESULTS: Over an average follow-up period of approximately 16.0 years, 1,119 incident cases of pancreatic cancer were ascertained. Compared to women in the lowest HLI quartile, those in the upper quartiles (qt) had a reduced risk of pancreatic cancer (multivariable-adjusted HRqt3rd 0.83, 95% CI 0.74-0.99; and HRqt4th 0.74, 95% CI 0.62-0.88, respectively, p trend = 0.001). Use of waist circumference instead of BMI in the HLI score yielded similar results. Among women who were either non-diabetic or non-smokers, high HLI was also associated with reduced risk (HRqt4th 0.78, 95% CI 0.65-0.85 and HRqt4th 0.80, 95% CI 0.66-0.97, respectively). Stratification by BMI categories (18.5- < 25.0, 25.0- < 30.0 and > 30.0 kg/m2) showed similar results in all groups. CONCLUSIONS: Our findings suggest that in postmenopausal women, a healthy lifestyle is associated with reduced risk of pancreatic cancer.


Assuntos
Estilo de Vida Saudável , Neoplasias Pancreáticas , Índice de Massa Corporal , Peso Corporal , Feminino , Humanos , Masculino , Neoplasias Pancreáticas/epidemiologia , Neoplasias Pancreáticas/etiologia , Estudos Prospectivos , Fatores de Risco , Saúde da Mulher , Neoplasias Pancreáticas
7.
Obesity (Silver Spring) ; 28(9): 1678-1686, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32841523

RESUMO

OBJECTIVE: This study was designed to determine whether intensive lifestyle intervention (ILI) aimed at weight loss lowers cancer incidence and mortality. METHODS: Data from the Look AHEAD trial were examined to investigate whether participants randomized to ILI designed for weight loss would have reduced overall cancer incidence, obesity-related cancer incidence, and cancer mortality, as compared with the diabetes support and education (DSE) comparison group. This analysis included 4,859 participants without a cancer diagnosis at baseline except for nonmelanoma skin cancer. RESULTS: After a median follow-up of 11 years, 684 participants (332 in ILI and 352 in DSE) were diagnosed with cancer. The incidence rates of obesity-related cancers were 6.1 and 7.3 per 1,000 person-years in ILI and DSE, respectively, with a hazard ratio (HR) of 0.84 (95% CI: 0.68-1.04). There was no significant difference between the two groups in total cancer incidence (HR, 0.93; 95% CI: 0.80-1.08), incidence of nonobesity-related cancers (HR, 1.02; 95% CI: 0.83-1.27), or total cancer mortality (HR, 0.92; 95% CI: 0.68-1.25). CONCLUSIONS: An ILI aimed at weight loss lowered incidence of obesity-related cancers by 16% in adults with overweight or obesity and type 2 diabetes. The study sample size likely lacked power to determine effect sizes of this magnitude and smaller.


Assuntos
Diabetes Mellitus Tipo 2/complicações , Neoplasias/etiologia , Obesidade/terapia , Redução de Peso/fisiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
8.
Sleep ; 42(7)2019 07 08.
Artigo em Inglês | MEDLINE | ID: mdl-30994175

RESUMO

STUDY OBJECTIVES: To evaluate the associations between sedentary time, total (total-PA), light (light-PA), moderate (MOD-PA), and vigorous (VIG-PA) physical activity with indices of sleep in postmenopausal women. METHODS: Baseline self-reported data from the Women's Health Initiative Observational Study (n = 75 074) were used in this cross-sectional analysis. Total-PA, light-PA, MOD-PA, and VIG-PA were categorized by metabolic equivalents of the activity (MET-hour [hr]/week [wk]) and were estimated using validated questionnaires. Sedentary time was categorized by hr/day and was estimated via questionnaire. Logistic regression was used to examine the associations between these variables and short sleep (≤6 hr/night), long sleep (≥10 hr/night), poor sleep quality, and insomnia symptoms after adjustment for age, race, socioeconomic status, body mass index, health status, depressive symptoms, smoking status, alcohol use, hormone therapy, and comorbidities. RESULTS: Higher sedentary time (>11 hr/day) was associated with higher odds of short sleep (odds ratio [OR] = 1.80, 95% confidence interval [CI]: 1.72-1.88), poor sleep quality (OR = 1.85, 95% CI: 1.74-1.97), and insomnia symptoms (OR = 1.56, 95% CI: 1.49-1.64). Light-PA (>0 MET-hr/wk) was associated with lower odds of short sleep (OR = 0.96, 95% CI: 0.92-1.00), and higher amounts of total-PA (OR = 0.90, 95% CI: 0.84-0.97), light-PA (OR = 0.94, 95% CI: 0.89-1.00), and MOD-PA (OR = 0.91, 95% CI: 0.86-0.97) were associated with lower odds of poor sleep quality. CONCLUSIONS: Our findings suggest that higher levels of light and moderate intensity physical activity are associated with better sleep quality, whereas higher amounts of sedentary time are associated with short sleep and lower quality sleep. Future studies should investigate the directionality of these associations and potential causal pathways.


Assuntos
Exercício Físico/fisiologia , Comportamento Sedentário , Distúrbios do Início e da Manutenção do Sono/fisiopatologia , Sono/fisiologia , Índice de Massa Corporal , Estudos Transversais , Feminino , Nível de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Pós-Menopausa/fisiologia , Fumar , Inquéritos e Questionários , Fatores de Tempo
9.
Contemp Clin Trials Commun ; 9: 50-59, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29333504

RESUMO

Despite advances in behavioral and pharmacological treatment for tobacco use and dependence, quit rates remain suboptimal. Increasing physical activity has shown some promise as a strategy for improving cessation outcomes. However, initial efficacy studies focused on intensive, highly structured exercise programs that may not be applicable to the general population of smokers. We describe the rationale and study design and report baseline participant characteristics from the Lifestyle Enhancement Program (LEAP), a two-group, randomized controlled trial. Adult smokers who engaged in low levels of leisure time physical activity were randomly assigned to treatment conditions consisting of an individualized physical activity intervention delivered by health fitness instructors in community-based exercise facilities or an equal contact wellness control. All participants received standard cognitive behavioral smoking cessation counseling combined with nicotine replacement therapy. The primary outcomes are seven-day point prevalence abstinence at seven weeks, six- and 12 months. Secondary outcomes include self-reported physical activity, dietary intake, body mass index, waist circumference, percent body fat, and nicotine withdrawal symptoms. Participants consist of 392 sedentary smokers (mean [standard deviation] age = 44.6 [10.2] = years; 62% female; 31% African American). Results reported here provide information regarding experiences recruiting smokers willing to change multiple health behaviors including smoking and physical activity.

10.
JNCI Cancer Spectr ; 2(4): pky065, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31360880

RESUMO

BACKGROUND: In the Women's Health Initiative Dietary Modification trial, a low-fat dietary pattern reduced deaths after breast cancer. Mortality from other cancer sites has not been reported. METHODS: A low-fat dietary pattern influence on deaths from and after site-specific cancers was examined during 8.5 years (median) of dietary intervention and cumulatively during 17.7 years (median) of follow-up. A total 48 835 postmenopausal women, ages 50-79 years, were randomly assigned from 1993 to 1998 at 40 US clinical centers to dietary intervention (40%, n = 19 541 or a usual diet comparison group (60%, n = 29 294). Dietary intervention influence on mortality from protocol-specified cancers (breast, colon and rectum, endometrium and ovary), individually and as a composite, represented the primary analyses. RESULTS: During the dietary intervention period, a reduction in deaths after breast cancer (HR = 0.65 95% CI = 0.45 to 0.94, P = .02) was the only statistically significant cancer mortality finding. During intervention, the HRs for deaths after the protocol-specified cancer composite were 0.90 (95% CI = 0.73 to 1.10) and 0.95 (95% CI = 0.85 to 1.06) for deaths after all cancers. During 17.7 years of follow-up with 3867 deaths after all cancers, reduction in deaths after breast cancer continued in the dietary intervention group (HR = 0.85, 95% CI = 0.74 to 0.99, P = .03). However, no dietary intervention influence on deaths from or after any other cancer or cancer composite was seen. CONCLUSIONS: A low-fat dietary pattern reduced deaths after breast cancer. No reduction in mortality from or after any other cancer or cancer composite was seen.

11.
J Gerontol A Biol Sci Med Sci ; 73(11): 1552-1559, 2018 10 08.
Artigo em Inglês | MEDLINE | ID: mdl-29053861

RESUMO

Background: Lifestyle interventions have been shown to improve physical function over the short term; however, whether these benefits are sustainable is unknown. The long-term effects of an intensive lifestyle intervention (ILI) on physical function were assessed using a randomized post-test design in the Look AHEAD trial. Methods: Overweight and obese (body mass index ≥ 25 kg/m2) middle-aged and older adults (aged 45-76 years at enrollment) with type 2 diabetes enrolled in Look AHEAD, a trial evaluating an ILI designed to achieve weight loss through caloric restriction and increased physical activity compared to diabetes support and education (DSE), underwent standardized assessments of performance-based physical function including a 4- and 400-m walk, lower extremity physical performance (expanded Short Physical Performance Battery, SPPBexp), and grip strength approximately 11 years postrandomization and 1.5 years after the intervention was stopped (n = 3,783). Results: Individuals randomized to ILI had lower odds of slow gait speed (<0.8 m/s) compared to those randomized to DSE (adjusted OR [95% CI]: 0.84 [0.71 to 0.99]). Individuals randomized to ILI also had faster gait speed over 4- and 400-m (adjusted mean difference [95% CI]: 0.019 [0.007 to 0.031] m/s, p = .002, and 0.023 [0.012 to 0.034] m/sec, p < .0001, respectively) and higher SPPBexp scores (0.037 [0.011 to 0.063], p = .005) compared to those randomized to DSE. The intervention effect was slightly larger for SPPBexp scores among older versus younger participants (0.081 [0.038 to 0.124] vs 0.013 [-0.021 to 0.047], p = .01). Conclusions: An intensive lifestyle intervention has modest but significant long-term benefits on physical function in overweight and obese middle-aged and older adults with type 2 diabetes. ClinicalTrials.gov Identifier: NCT00017953.


Assuntos
Diabetes Mellitus Tipo 2/terapia , Estilo de Vida , Idoso , Restrição Calórica , Diabetes Mellitus Tipo 2/epidemiologia , Exercício Físico , Feminino , Força da Mão , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade/epidemiologia , Sobrepeso/epidemiologia , Desempenho Físico Funcional , Velocidade de Caminhada , Programas de Redução de Peso
12.
J Aging Health ; 30(4): 624-640, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-28553800

RESUMO

OBJECTIVES: Older female smokers are highly vulnerable, yet little is known about their attitudes, beliefs, and behaviors regarding smoking cessation. METHODS: Southeast region Women's Health Initiative participants identified as smokers on at least one prior assessment were surveyed in 2012 regarding current tobacco use. RESULTS: Most of these current and former smokers ( N = 409, 63% response) were non-Hispanic White (81.7%) and had some college (80%), with mean age of 75.1 years. Current smoking was confirmed by 56%, and while 61% of these reported a past-year quit attempt, less than half used quit aids. Of current smokers, 57.5% intended to quit within 6 months (26.6% within 30 days), and 68% were interested in joining a cessation study. CONCLUSIONS: Older female smokers were highly motivated to quit, yet profoundly underutilized proven quit aids. Results support high acceptability of cessation interventions for this undertreated population.


Assuntos
Atitude Frente a Saúde , Comportamentos Relacionados com a Saúde , Fumantes/estatística & dados numéricos , Abandono do Hábito de Fumar/métodos , Prevenção do Hábito de Fumar/métodos , Fumar/epidemiologia , Saúde da Mulher , Idoso , Feminino , Humanos , Masculino , Prevalência , Prognóstico , Fumar/psicologia , Abandono do Hábito de Fumar/psicologia , Inquéritos e Questionários , Estados Unidos/epidemiologia
13.
Cancer Causes Control ; 28(12): 1405-1416, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28975422

RESUMO

PURPOSE: The objective of this study was to evaluate the prospective association between sedentary time and postmenopausal breast cancer incidence, and whether associations differ by race/ethnicity, physical activity levels, and body measurements. METHODS: The Women's Health Initiative Observational Study is a prospective cohort among women ages 50-79 years at baseline (1994-1998) (analytic cohort = 70,233). Baseline questionnaire data were used to estimate time spent sitting and total sedentary time. Associations between time spent sitting and invasive breast cancer incidence overall (n = 4,115 cases through September 2015), and by hormone receptor subtypes, were investigated using Cox proportional hazards regression. Analyses were replicated stratified by race/ethnicity, body measurements, and physical activity. RESULTS: Among women in this study, 34.5% reported ≤ 5 h/day sitting, 40.9% reported 6-9 h/day and 24.7% reported ≥ 10 h/day. Time spent sitting (≥ 10 vs. ≤5 h/day adjusted HR = 1.00, 95% CI 0.92-1.09) was not associated with breast cancer incidence, regardless of hormone receptor subtype. Associations did not differ by race/ethnicity, physical activity, or body measurements. CONCLUSIONS: Results from this study do not support an association between sedentary time and breast cancer incidence.


Assuntos
Neoplasias da Mama/epidemiologia , Pós-Menopausa , Comportamento Sedentário , Idoso , Neoplasias da Mama/etnologia , Etnicidade , Exercício Físico , Feminino , Humanos , Incidência , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Estudos Prospectivos , Grupos Raciais , Inquéritos e Questionários
14.
Obesity (Silver Spring) ; 25(10): 1691-1698, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28948720

RESUMO

OBJECTIVE: To evaluate whether a behavioral weight management program combined with a smoking cessation program delivered via interactive technology could prevent postcessation weight gain. METHODS: Three hundred and thirty young adult smokers, age 18 to 35 years, were randomized to a smoking cessation program alone (comparison group), which included behavioral counseling and nicotine replacement, or to a behavioral weight management program adapted from the Look AHEAD trial plus the same smoking cessation program (intervention group). RESULTS: The Treating Adult Smokers at Risk for Weight Gain with Interactive Technology study randomized 164 participants to the comparison group and 166 participants to the intervention group. On average, the participants gained 0.91 kg after 24 months in the trial (comparison group + 1.45 kg and intervention group + 0.32; P = 0.157). The only variable systematically affecting weight change over time was smoking abstinence, in which those who were abstinent, on average, gained 0.14 kg more per month compared with those who continued to smoke (P < 0.001). In exploratory analyses, the intervention participants who were abstinent at 6 months had numerically smaller weight gains compared with abstinent participants in the comparison group, but these differences were not statistically significant. CONCLUSIONS: Providing an intensive weight gain prevention program combined with a smoking cessation program via interactive technology was not associated with greater long-term weight gain prevention.


Assuntos
Abandono do Hábito de Fumar/métodos , Fumar/efeitos adversos , Aumento de Peso/fisiologia , Adolescente , Adulto , Aconselhamento , Feminino , Humanos , Masculino , Tecnologia , Adulto Jovem
15.
J Clin Oncol ; 35(11): 1189-1193, 2017 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-28165909

RESUMO

Purpose Although obesity is an established endometrial cancer risk factor, information about the influence of weight loss on endometrial cancer risk in postmenopausal women is limited. Therefore, we evaluated associations among weight change by intentionality with endometrial cancer in the Women's Health Initiative (WHI) observational study. Patients and Methods Postmenopausal women (N = 36,794) ages 50 to 79 years at WHI enrollment had their body weights measured and body mass indices calculated at baseline and at year 3. Weight change during that period was categorized as follows: stable (change within ± 5%), loss (change ≥ 5%), and gain (change ≥ 5%). Weight loss intentionality was assessed via self-report at year 3; change was characterized as intentional or unintentional. During the subsequent 11.4 years (mean) of follow-up, 566 incident endometrial cancer occurrences were confirmed by medical record review. Multivariable Cox proportional hazards regression models were used to evaluate relationships (hazard ratios [HRs] and 95% CIs) between weight change and endometrial cancer incidence. Results In multivariable analyses, compared with women who had stable weight (± 5%), women with weight loss had a significantly lower endometrial cancer risk (HR, 0.71; 95% CI, 0.54 to 0.95). The association was strongest among obese women with intentional weight loss (HR, 0.44; 95% CI, 0.25 to 0.78). Weight gain (≥ 10 pounds) was associated with a higher endometrial cancer risk than was stable weight, especially among women who had never used hormones. Conclusion Intentional weight loss in postmenopausal women is associated with a lower endometrial cancer risk, especially among women with obesity. These findings should motivate programs for weight loss in obese postmenopausal women.


Assuntos
Neoplasias do Endométrio/epidemiologia , Obesidade/epidemiologia , Aumento de Peso , Redução de Peso , Idoso , Índice de Massa Corporal , Terapia de Reposição de Estrogênios/estatística & dados numéricos , Feminino , Seguimentos , Humanos , Incidência , Intenção , Pessoa de Meia-Idade , Análise Multivariada , Pós-Menopausa , Modelos de Riscos Proporcionais , Fatores de Proteção , Fatores de Risco , Autorrelato
16.
Contemp Clin Trials Commun ; 2: 61-68, 2016 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-26949747

RESUMO

Multiple recruitment strategies are often needed to recruit an adequate number of participants, especially hard to reach groups. Technology-based recruitment methods hold promise as a more robust form of reaching and enrolling historically hard to reach young adults. The TARGIT study is a randomized two-arm clinical trial in young adults using interactive technology testing an efficacious proactive telephone Quitline versus the Quitline plus a behavioral weight management intervention focusing on smoking cessation and weight change. All randomized participants in the TARGIT study were required to be a young adult smoker (18-35 years), who reported smoking at least 10 cigarettes per day, had a BMI < 40 kg/m2, and were willing to stop smoking and not gain weight. Traditional recruitment methods were compared to technology-based strategies using standard descriptive statistics based on counts and proportions to describe the recruitment process from initial pre-screening (PS) to randomization into TARGIT. Participants at PS were majority Black (59.80%), female (52.66%), normal or over weight (combined 62.42%), 29.5 years old, and smoked 18.4 cigarettes per day. There were differences in men and women with respect to reasons for ineligibility during PS (p < 0.001; ignoring gender specific pregnancy-related ineligibility). TARGIT experienced a disproportionate loss of minorities during recruitment as well as a prolonged recruitment period due to either study ineligibility or not completing screening activities. Recruitment into longer term behavioral change intervention trials can be challenging and multiple methods are often required to recruit hard to reach groups.

17.
Am J Hypertens ; 28(8): 995-1009, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25666468

RESUMO

BACKGROUND: The relative effectiveness of 3 approaches to blood pressure control-(i) an intensive lifestyle intervention (ILI) focused on weight loss, (ii) frequent goal-based monitoring of blood pressure with pharmacological management, and (iii) education and support-has not been established among overweight and obese adults with type 2 diabetes who are appropriate for each intervention. METHODS: Participants from the Action for Health in Diabetes (Look AHEAD) and the Action to Control Cardiovascular Risk in Diabetes (ACCORD) cohorts who met criteria for both clinical trials were identified. The proportions of these individuals with systolic blood pressure (SBP) <140 mm Hg from annual standardized assessments over time were compared with generalized estimating equations. RESULTS: Across 4 years among 480 Look AHEAD and 1,129 ACCORD participants with baseline SBPs between 130 and 159 mm Hg, ILI (OR = 1.46; 95% CI = [1.18-1.81]) and frequent goal-based monitoring with pharmacotherapy (OR = 1.51; 95% CI = [1.16-1.97]) yielded higher rates of blood pressure control compared to education and support. The intensive behavioral-based intervention may have been more effective among individuals with body mass index >30 kg/m2, while frequent goal-based monitoring with medication management may be more effective among individuals with lower body mass index (interaction P = 0.047). CONCLUSIONS: Among overweight and obese adults with type 2 diabetes, both ILI and frequent goal-based monitoring with pharmacological management can be successful strategies for blood pressure control. CLINICAL TRIALS REGISTRY: clinicaltrials.gov identifiers NCT00017953 (Look AHEAD) and NCT00000620 (ACCORD).


Assuntos
Anti-Hipertensivos/uso terapêutico , Diabetes Mellitus Tipo 2/complicações , Dietoterapia/métodos , Terapia por Exercício/métodos , Hipertensão/terapia , Atividade Motora , Obesidade/terapia , Idoso , Dieta Redutora/métodos , Feminino , Humanos , Hipertensão/complicações , Masculino , Pessoa de Meia-Idade , Obesidade/complicações , Sobrepeso/complicações , Sobrepeso/terapia , Educação de Pacientes como Assunto/métodos , Autocuidado
18.
Contemp Clin Trials ; 33(3): 534-49, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22342450

RESUMO

There are few effective obesity interventions directed towards younger children, particularly young minority children. This paper describes the design, intervention, recruitment methods, and baseline data of the ongoing Positive Lifestyles for Active Youngsters (Team PLAY) study. This randomized controlled trial is designed to test the efficacy of a 6-month, moderately intense, primary care feasible, family-based behavioral intervention, targeting both young children and their parent, in promoting healthy weight change. Participants are 270 overweight and obese children (ages 4 to 7 years) and their parents, who were recruited from a primarily African American urban population. Parents and children were instructed in proven cognitive behavioral techniques (e.g. goal setting, self-talk, stimulus control and reinforcement) designed to encourage healthier food choices (more whole grains, fruits and vegetables, and less concentrated fats and sugar), reduce portion sizes, decrease sweetened beverages and increase moderate to vigorous physical activity engagement. The main outcome of this study is change in BMI at two year post enrollment. Recruitment using reactive methods (mailings, TV ads, pamphlets) was found to be more successful than using only a proactive approach (referral through physicians). At baseline, most children were very obese with an average BMI z-score of 2.6. Reported intake of fruits and vegetables and minutes of moderate to vigorous physical activity engagement did not meet national recommendations. If efficacious, Team PLAY would offer a model for obesity treatment directed at families with young children that could be tested and translated to both community and primary care settings.


Assuntos
Promoção da Saúde/métodos , Estilo de Vida , Atividade Motora , Obesidade/terapia , Marketing Social , Actigrafia/instrumentação , Tecido Adiposo , Fatores Etários , Antropometria , Índice de Massa Corporal , Criança , Proteção da Criança , Pré-Escolar , Feminino , Indicadores Básicos de Saúde , Humanos , Masculino , Obesidade/epidemiologia , Obesidade/prevenção & controle , Psicometria , Autoimagem , Fatores de Tempo
19.
Arch Gen Psychiatry ; 65(12): 1447-55, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19047532

RESUMO

CONTEXT: Binge eating (BE) is common in overweight and obese individuals with type 2 diabetes mellitus, but little is known about how BE affects weight loss in this population. OBJECTIVE: To determine whether BE was related to 1-year weight losses in overweight and obese individuals with type 2 diabetes participating in an ongoing clinical trial. DESIGN, SETTING, AND PARTICIPANTS: The Look AHEAD (Action for Health in Diabetes) trial is a randomized controlled trial examining the long-term effect of intentional weight loss on cardiovascular disease in overweight and obese adults with type 2 diabetes. A total of 5145 overweight and obese individuals aged 45 to 76 years with type 2 diabetes participated in this study. INTERVENTIONS: Participants were randomly assigned to an intensive lifestyle intervention or to enhanced usual care (a diabetes support and education control condition). MAIN OUTCOME MEASURES: At baseline and 1 year, participants had their weight measured and completed a fitness test and self-report measures of BE and dietary intake. Four groups were created based on BE status at baseline and 1 year (yes/yes, no/no, yes/no, and no/yes). Analyses controlled for baseline differences between binge eaters and non-binge eaters. RESULTS: Most individuals (85.4%) did not report BE at baseline or 1 year (no/no), 7.5% reported BE only at baseline (yes/no), 3.7% reported BE at both times (yes/yes), and 3.4% reported BE only at 1 year (no/yes), with no differences between intensive lifestyle intervention and diabetes support and education conditions (P = .14). Across intensive lifestyle intervention and diabetes support and education, greater weight losses were observed in participants who stopped BE at 1 year (mean [SE] weight loss, 5.3 [0.4] kg) and those who reported no BE at either time (mean [SE] weight loss, 4.8 [0.1] kg) than in those who continued BE (mean [SE] weight loss, 3.1 [0.6] kg) and those who began BE at 1 year (mean [SE] weight loss, 3.0 [0.6] kg) (P < .001). Post hoc analyses suggested that these differences were due to changes in caloric intake. CONCLUSION: Overweight and obese individuals with type 2 diabetes who stop BE appear to be just as successful at weight loss as non-binge eaters after 1 year of treatment. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT00017953.


Assuntos
Bulimia Nervosa/epidemiologia , Diabetes Mellitus Tipo 2/epidemiologia , Intenção , Obesidade/epidemiologia , Obesidade/prevenção & controle , Redução de Peso , Idoso , Consumo de Bebidas Alcoólicas/epidemiologia , Antropometria , Índice de Massa Corporal , Demografia , Ingestão de Energia , Feminino , Humanos , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Prevalência , Tabagismo/epidemiologia
20.
Obes Surg ; 18(4): 391-4, 2008 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18286346

RESUMO

BACKGROUND: Support group meetings (SGM) are assumed to be an integral part of success after bariatric surgery. This investigation studies the effect of SGM on weight loss as well as factors associated with attendance of SGM. It is our hypothesis that patients who attend SGM (ASGM) lose more weight than those patients who do not attend SGM (NASGM). METHODS: Postoperative bariatric patients completed a questionnaire regarding their opinions of SGM. Change in body mass index (BMI) was computed for each patient. The patients were then divided into two groups: ASGM and NASGM for data comparison. RESULTS: There were 46 patients in the investigation. Patients in the NASGM group tended to feel that SGM are not needed after bariatric surgery compared to the ASGM group (5.29 vs. 7.06; p = 0.07). Patients in the NASGM group tended to feel that they would lose the same amount of weight with or without attending SGM compared to the ASGM group (5.67 vs. 7.38; p = 0.07). There were no differences in distance to clinic nor in time to clinic between both groups. Gastric bypass patients in the ASGM group had a statistically significantly higher percent decrease in BMI than the patients in the NASGM group (42% vs. 32%; p < 0.03). CONCLUSION: Patients in the ASGM group lose more weight than patients in the NASGM group. The importance of attending SGM should be incorporated in preoperative patient counseling and encouraged during postoperative follow-up visits.


Assuntos
Cirurgia Bariátrica , Obesidade Mórbida/psicologia , Obesidade Mórbida/cirurgia , Cooperação do Paciente , Grupos de Autoajuda , Redução de Peso , Índice de Massa Corporal , Estudos de Coortes , Pesquisas sobre Atenção à Saúde , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Resultado do Tratamento
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