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1.
Cancer Epidemiol Biomarkers Prev ; 32(8): 1003-1010, 2023 08 01.
Article in English | MEDLINE | ID: mdl-37255363

ABSTRACT

Cancer is a significant burden worldwide that adversely impacts life expectancy, quality of life, health care costs, and workforce productivity. Although currently recommended screening tests for individual cancers reduce mortality, they detect only a minority of all cancers and sacrifice specificity for high sensitivity, resulting in a high cumulative rate of false positives. Blood-based multicancer early detection tests (MCED) based on next-generation sequencing (NGS) and other technologies hold promise for broadening the number of cancer types detected in screened populations and hope for reducing cancer mortality. The promise of this new technology to improve cancer detection rates and make screening more efficient at the population level demands the development of novel trial designs that accelerate clinical adoption. Carefully designed clinical trials are needed to address these issues.


Subject(s)
Neoplasms , Quality of Life , Humans , Early Detection of Cancer , Neoplasms/diagnosis
2.
J Dermatol Nurses Assoc ; 15(3): 123-132, 2023.
Article in English | MEDLINE | ID: mdl-38463180

ABSTRACT

The use of indoor UV tanning devices (also known as "indoor tanning") has declined in recent years. Less is known about use of dihydroxyacetone-containing products used for tanning (also known as "sunless tanning"). We analyzed data from the 2015 National Health Interview Survey. Analysis was limited to non-Hispanic White women ages 18-49 years. We estimated the proportion of women reporting spray tanning, self-applied lotion tanning, and indoor tanning and used weighted multivariable logistic regression models to examine the relationships between socio-demographic characteristics, skin cancer risk factors, and other cancer risk factors with sunless and indoor tanning. Overall, 17.7% of women reported sunless tanning. Lotion tanning was more common (15.3%) than spray tanning (6.8%), while 12.0% of women engaged in indoor tanning. Among sunless tanners, 23.7% also engaged in indoor tanning. Younger age, ever having a skin exam, skin reactions to the sun, binge drinking, and being at a healthy weight were associated with sunless tanning. While sunless tanning may be less harmful for skin cancer risk than indoor tanning, the frequency with which the two behaviors co-occur suggests that efforts to address societal pressures for women to alter their skin color may have important public health benefits.

3.
Cancer Epidemiol Biomarkers Prev ; 31(10): 1959-1965, 2022 10 04.
Article in English | MEDLINE | ID: mdl-35861654

ABSTRACT

BACKGROUND: Smoking is declining, except among current menthol cigarette smokers. This study examines menthol cigarette smoking in the United States. METHODS: Cross-sectional data from 35,279 self-respondent current adult smokers who selected menthol cigarettes as their usual type, across the 2003, 2006-2007, 2010-2011, 2014-2015, and 2018-2019 waves of the nationally-representative Tobacco Use Supplement to the Current Population Survey, were analyzed in SAS/SUDAAN. Menthol cigarette smoking among current smokers was assessed by sex, age, race/ethnicity, employment, geography, and educational attainment. Linear contrasts were used to assess trends. RESULTS: Overall cigarette smoking (12.6% in 2018-2019 from 17.3% in 2003) and menthol cigarette smoking (4.0% in 2018-2019 from 4.7% in 2003) in the population decreased in 2018-2019 from 2003 (both P < 0.001). Using predicted marginals, adjusted by demographics, menthol smoking among current smokers increased to 33.8% in 2018-2019 from 27.9% in 2003 (P < 0.001). Among current smoking adults, increases in menthol smoking were observed among non-Hispanic Black persons (76.8% in 2018-2019 from 73.0% in 2003), young adults (37.7% in 2018-2019 from 31.7% in 2003), and women (39.6% in 2018-2019 from 32.1% in 2003). CONCLUSIONS: Smoking and menthol smoking in the population has decreased, yet menthol smoking among current smokers increased from 2003 to 2018-2019. Young adult, female, and non-Hispanic Black current smokers were more likely to use menthol cigarettes than their counterparts; these differences have persisted. IMPACT: Increased menthol smoking among current smokers, notably young adults, women, and non-Hispanic Black individuals, highlights the need for targeted tobacco control interventions for these health disparity populations.


Subject(s)
Cigarette Smoking , Tobacco Products , Cigarette Smoking/epidemiology , Cross-Sectional Studies , Female , Humans , Menthol , Nicotiana , United States/epidemiology , Young Adult
4.
Cancer Cell ; 40(2): 109-113, 2022 02 14.
Article in English | MEDLINE | ID: mdl-35120599

ABSTRACT

Cancers other than breast, colorectal, cervical, and lung do not have guideline-recommended screening. New multi-cancer early detection (MCED) tests-using a single blood sample-have been developed based on circulating cell-free DNA (cfDNA) or other analytes. In this commentary, we review the current evidence on these tests, provide several major considerations for new MCED tests, and outline how their evaluation will need to differ from that established for traditional single-cancer screening tests.


Subject(s)
Biomarkers, Tumor , Early Detection of Cancer , Genomics/methods , Neoplasms/diagnosis , Neoplasms/genetics , Clinical Decision-Making , Disease Management , Disease Susceptibility , Early Detection of Cancer/methods , Early Detection of Cancer/standards , Genomics/standards , Humans , Organ Specificity
5.
Nat Commun ; 12(1): 5060, 2021 08 20.
Article in English | MEDLINE | ID: mdl-34417454

ABSTRACT

Non-invasive approaches for cell-free DNA (cfDNA) assessment provide an opportunity for cancer detection and intervention. Here, we use a machine learning model for detecting tumor-derived cfDNA through genome-wide analyses of cfDNA fragmentation in a prospective study of 365 individuals at risk for lung cancer. We validate the cancer detection model using an independent cohort of 385 non-cancer individuals and 46 lung cancer patients. Combining fragmentation features, clinical risk factors, and CEA levels, followed by CT imaging, detected 94% of patients with cancer across stages and subtypes, including 91% of stage I/II and 96% of stage III/IV, at 80% specificity. Genome-wide fragmentation profiles across ~13,000 ASCL1 transcription factor binding sites distinguished individuals with small cell lung cancer from those with non-small cell lung cancer with high accuracy (AUC = 0.98). A higher fragmentation score represented an independent prognostic indicator of survival. This approach provides a facile avenue for non-invasive detection of lung cancer.


Subject(s)
Circulating Tumor DNA/metabolism , DNA Fragmentation , Lung Neoplasms/diagnosis , Lung Neoplasms/genetics , Adolescent , Adult , Aged , Aged, 80 and over , Apoptosis , Carcinoma, Non-Small-Cell Lung/diagnosis , Carcinoma, Non-Small-Cell Lung/genetics , Carcinoma, Non-Small-Cell Lung/pathology , Cell Line, Tumor , Diagnosis, Differential , Early Detection of Cancer , Female , Genome, Human , Humans , Lung Neoplasms/pathology , Male , Middle Aged , Models, Biological , Neoplasm Metastasis , Neoplasm Staging , Small Cell Lung Carcinoma/diagnosis , Small Cell Lung Carcinoma/genetics , Small Cell Lung Carcinoma/pathology , Young Adult
6.
Nicotine Tob Res ; 23(8): 1300-1307, 2021 08 04.
Article in English | MEDLINE | ID: mdl-33532860

ABSTRACT

INTRODUCTION: The workplace and home are sources of exposure to secondhand smoke, a serious health hazard for nonsmoking adults and children. Smoke-free workplace policies and home rules protect nonsmoking individuals from secondhand smoke and help individuals who smoke to quit smoking. However, estimated population coverages of smoke-free workplace policies and home rules are not typically available at small geographic levels such as counties. Model-based small-area estimation techniques are needed to produce such estimates. METHODS: Self-reported smoke-free workplace policies and home rules data came from the 2014-2015 Tobacco Use Supplement to the Current Population Survey. County-level design-based estimates of the two measures were computed and linked to county-level relevant covariates obtained from external sources. Hierarchical Bayesian models were then built and implemented through Markov Chain Monte Carlo methods. RESULTS: Model-based estimates of smoke-free workplace policies and home rules were produced for 3134 (of 3143) US counties. In 2014-2015, nearly 80% of US adult workers were covered by smoke-free workplace policies, and more than 85% of US adults were covered by smoke-free home rules. We found large variations within and between states in the coverage of smoke-free workplace policies and home rules. CONCLUSIONS: The small-area modeling approach efficiently reduced the variability that was attributable to small sample size in the direct estimates for counties with data and predicted estimates for counties without data by borrowing strength from covariates and other counties with similar profiles. The county-level modeled estimates can serve as a useful resource for tobacco control research and intervention. IMPLICATIONS: Detailed county- and state-level estimates of smoke-free workplace policies and home rules can help identify coverage disparities and differential impact of smoke-free legislation and related social norms. Moreover, this estimation framework can be useful for modeling different tobacco control variables and applied elsewhere, for example, to other behavioral, policy, or health related topics.


Subject(s)
Smoke-Free Policy , Tobacco Smoke Pollution , Adult , Bayes Theorem , Child , Humans , Self Report , Workplace
7.
Cancer Epidemiol Biomarkers Prev ; 29(5): 895-902, 2020 05.
Article in English | MEDLINE | ID: mdl-32229577

ABSTRACT

BACKGROUND: New technologies are being developed for early detection of multiple types of cancer simultaneously. To quantify the potential benefit, we estimated reductions in absolute cancer-related deaths that could occur if cancers diagnosed after metastasis (stage IV) were instead diagnosed at earlier stages. METHODS: We obtained stage-specific incidence and survival data from the Surveillance, Epidemiology, and End Results Program for 17 cancer types for all persons diagnosed ages 50 to 79 years in 18 geographic regions between 2006 and 2015. For a hypothetical cohort of 100,000 persons, we estimated cancer-related deaths under assumptions that cancers diagnosed at stage IV were diagnosed at earlier stages. RESULTS: Stage IV cancers represented 18% of all estimated diagnoses but 48% of all estimated cancer-related deaths within 5 years. Assuming all stage IV cancers were diagnosed at stage III, 51 fewer cancer-related deaths would be expected per 100,000, a reduction of 15% of all cancer-related deaths. Assuming one third of metastatic cancers were diagnosed at stage III, one third diagnosed at stage II, and one third diagnosed at stage I, 81 fewer cancer-related deaths would be expected per 100,000, a reduction of 24% of all cancer-related deaths, corresponding to a reduction in all-cause mortality comparable in magnitude to eliminating deaths due to cerebrovascular disease. CONCLUSIONS: Detection of multiple cancer types earlier than stage IV could reduce at least 15% of cancer-related deaths within 5 years, affecting not only cancer-specific but all-cause mortality. IMPACT: Detecting cancer before stage IV, including modest shifts to stage III, could offer substantial population benefit.


Subject(s)
Early Detection of Cancer/statistics & numerical data , Mortality/trends , Neoplasms/epidemiology , SEER Program/statistics & numerical data , Aged , Early Detection of Cancer/trends , Female , Humans , Incidence , Male , Middle Aged , Neoplasm Staging/statistics & numerical data , Neoplasm Staging/trends , Neoplasms/diagnosis , Neoplasms/pathology , Neoplasms/therapy , United States/epidemiology
9.
JCO Precis Oncol ; 32019 Mar.
Article in English | MEDLINE | ID: mdl-34322651

ABSTRACT

PURPOSE: Multiplex gene panel testing (MGPT) allows for the simultaneous analysis of germline cancer susceptibility genes. This study describes the diagnostic yield and patient experiences of MGPT in diverse populations. PATIENTS AND METHODS: This multicenter, prospective cohort study enrolled participants from three cancer genetics clinics-University of Southern California Norris Comprehensive Cancer Center, Los Angeles County and University of Southern California Medical Center, and Stanford Cancer Institute-who met testing guidelines or had a 2.5% or greater probability of a pathogenic variant (N = 2,000). All patients underwent 25- or 28-gene MGPT and results were compared with differential genetic diagnoses generated by pretest expert clinical assessment. Post-test surveys on distress, uncertainty, and positive experiences were administered at 3 months (69% response rate) and 1 year (57% response rate). RESULTS: Of 2,000 participants, 81% were female, 41% were Hispanic, 26% were Spanish speaking only, and 30% completed high school or less education. A total of 242 participants (12%) carried one or more pathogenic variant (positive), 689 (34%) carried one or more variant of uncertain significance (VUS), and 1,069 (53%) carried no pathogenic variants or VUS (negative). More than one third of pathogenic variants (34%) were not included in the differential diagnosis. After testing, few patients (4%) had prophylactic surgery, most (92%) never regretted testing, and most (80%) wanted to know all results, even those of uncertain significance. Positive patients were twice as likely as negative/VUS patients (83% v 41%; P < .001) to encourage their relatives to be tested. CONCLUSION: In a racially/ethnically and socioeconomically diverse cohort, MGPT increased diagnostic yield. More than one third of identified pathogenic variants were not clinically anticipated. Patient regret and prophylactic surgery use were low, and patients appropriately encouraged relatives to be tested for clinically relevant results.

10.
JAMA Dermatol ; 154(5): 561-568, 2018 05 01.
Article in English | MEDLINE | ID: mdl-29541756

ABSTRACT

Importance: Monitoring sun protection and sunburn over time at the population level can provide valuable information about progress toward skin cancer prevention goals and inform future intervention efforts. Objective: To examine the prevalence of sun protection use (shade, sunscreen, and clothing) and sunburn and the association between sunburn and individual characteristics and health behaviors in the US population. Design, Setting, and Participants: In this cross-sectional study using a nationally representative sample of 31 162 US adults from the 2015 National Health Interview Survey-Cancer Control Supplement, household interviews of civilian, noninstitutionalized US adults were conducted throughout 2015 in person and completed on the telephone when necessary. Data analysis was performed from August 16, 2016, to September 6, 2017. Main Outcomes and Measures: The prevalence of sunburn and use of sun protection and their association with demographic characteristics, sun sensitivity, and health-related behaviors and conditions using multivariable logistic regression modeling. Results: A total of 31 162 respondents (mean [SD] age, 47.0 [0.36] years; 13 932 male [44.7%] and 17 230 female [55.3%]) were included in the analyses, with 34.2% experiencing sunburn in 2015. Sunburn prevalence was higher among younger age groups (51.2% in adults 18-29 years old; 95% CI, 48.8%-53.7%), non-Hispanic white individuals (42.5%; 95% CI, 41.2%-43.9%), and those with sun-sensitive skin (50.2%). However, sunburn was also prevalent among black (13.2%; 95% CI, 11.6%-15.1%) and Hispanic (29.7%; 95% CI, 27.6%-31.9%) individuals, demographic groups that are often considered to be at low risk of skin cancer. The most frequent sun protection behaviors were staying in the shade (37.1%; 95% CI, 36.3%-38.0%) and using sunscreen (31.5%; 95% CI, 30.7%-32.3%) followed by wearing long clothing to the ankles (28.4%; 95% CI, 27.6-29.1). Sun avoidance behaviors (seeking shade and not going in the sun) were significantly (39.5% vs 35.1%; P < .001) associated with a lower prevalence of sunburn. Those who used self-applied sunless tanning products (45.0% of users vs 36.1% of nonusers; P < .001), those who engaged in aerobic activity (37.9% of aerobic exercisers vs 32.8% of non-aerobic exercisers; P < .001), binge drinkers (45.1% of binge drinkers vs 35.0% of non-binge drinkers; P < .001), and overweight or obese individuals (37.9% of overweight or obese individuals vs 34.4% of non-overweight or obese individuals; P < .001) were more likely to experience sunburn compared with the respective comparison groups. Conclusions and Relevance: Sun sensitivity was significantly associated with a higher sunburn prevalence, independent of race/ethnicity, suggesting a need to consider sun sensitivity when identifying target demographic groups for sun safety interventions. Efforts to improve vigilance and consistency with use of sun protection are needed. In addition, those who engage in physical activity, use sunless tanners, or use sunscreen for tanning purposes may require additional intervention strategies to address the unique barriers they face in staying adequately protected.


Subject(s)
Health Behavior , Sunbathing , Sunburn/epidemiology , Sunscreening Agents/therapeutic use , Adult , Cross-Sectional Studies , Female , Humans , Male , Prevalence , Socioeconomic Factors , Sunburn/prevention & control , United States/epidemiology , Young Adult
11.
Prev Med ; 111: 442-450, 2018 06.
Article in English | MEDLINE | ID: mdl-29425724

ABSTRACT

While the general efficacy of skin cancer interventions have been reviewed, employing the cancer control continuum would be useful to identify research gaps at specific cancer control points. We characterized the intervention evidence base for specific behavioral targets (e.g., tanning, sun protection, screening) and clinically related targets (e.g., sunburn, skin exams, cancers) at each point in the cancer control continuum. The review included articles published from 1/1/2000-6/30/15 that had an experimental design and targeted behavioral intervention in skin cancer (e.g., specific behaviors or clinically related targets). The search yielded 86 articles, including seven dissemination studies. Of the 79 non-dissemination studies, 57 exclusively targeted primary prevention behaviors, five exclusively targeted screening, 10 targeted both detection and prevention, and eight addressed cancer survivorship. Among prevention studies (n=67), 29 (43%) targeted children and 38 (57%) targeted adults. Of the 15 screening studies, nine targeted high-risk groups (e.g., men aged ≥50 years) and six targeted the general population. Although research has focused on skin cancer prevention, empirically validated interventions are still needed for youth engaged in indoor tanning and for behavioral interventions to pursue change in clinically relevant targets. Research must also address detection among those at highest risk for skin cancer, amelioration of emotional distress attendant to diagnosis and treatment, and survivorship concerns. We discuss essential qualities and opportunities for intervention development and translational research to inform the field.


Subject(s)
Health Behavior , Skin Neoplasms/prevention & control , Sunburn/prevention & control , Biomedical Research , Humans , Skin Neoplasms/diagnosis , Skin Neoplasms/therapy , Sunbathing , Sunscreening Agents/therapeutic use
12.
Transl Behav Med ; 8(1): 85-94, 2018 01 29.
Article in English | MEDLINE | ID: mdl-29385580

ABSTRACT

Research on the communication of genetic test results has focused predominately on non-Hispanic White (NHW) mutation-positive families with high-risk hereditary cancer conditions. Little is known about this process for racially and ethnically diverse individuals or for those with mutations in moderate risk genes. The communication behaviors of study participants who carry a gene mutation were analyzed 3 months after disclosure of genetic test results. Participants were queried about communication of their results, as part of a prospective study of multi-gene panel genetic testing. The responses of particpants who tested positive were analyzed by race/ethnicity and by level of cancer risk (high vs. moderate). Of the 216 mutation-positive study participants, 136 (63%) responded. Self-reported race/ethnicity was 46% NHW, 41% Hispanic, 10% Asian, and 2% Black. The majority (99.0%, n = 135) had shared their results with someone and 96% had told a family member (n = 130). Hispanic respondents were less likely to have told a healthcare provider about their results than NHW (29% vs. 68%, p < .0001). Asian respondents were less likely than NHW to encourage family members to undergo testing (OR = 0.1, p = .03); but Asian family members were more likely to undergo testing (OR = 8.0, p = .03). There were no differences in communication between those with a mutation in a high- or moderate-risk gene. Three months post genetic testing, communication of results was very high; 30% reported a family member underwent genetic testing. Further studies are needed to better understand the communication process in individuals from diverse racial/ethnic backgrounds.


Subject(s)
Genetic Predisposition to Disease , Genetic Testing , Health Communication , Neoplasms/genetics , Neoplasms/psychology , Social Behavior , Family/ethnology , Family/psychology , Female , Humans , Male , Middle Aged , Mutation , Neoplasms/ethnology
13.
JAMA Intern Med ; 178(4): 469-476, 2018 04 01.
Article in English | MEDLINE | ID: mdl-29459935

ABSTRACT

Importance: Tobacco products have changed in recent years. Contemporary mortality risk estimates of combustible tobacco product use are needed. Objective: To investigate the mortality risks associated with current and former use of cigars, pipes, and cigarettes. Design, Setting, and Participants: The National Longitudinal Mortality Study is a longitudinal population-based, nationally representative health survey with mortality follow-up that includes demographic and other information from the Current Population Survey, tobacco product use information from the Tobacco Use Supplement, and mortality data from the National Death Index. In this study, participants provided tobacco use information at baseline in surveys starting from 1985 and were followed for mortality through the end of 2011. The study includes 357 420 participants who reported exclusively using cigar, pipes, or cigarettes or reported never using any type of tobacco product. Exposures: Current or former exclusive use of any cigar (little cigar, cigarillos, large cigar), traditional pipe, or cigarette and never tobacco use. Information on current daily and nondaily use was also collected. Estimates adjusted for age, sex, race/ethnicity, education, and survey year. Main Outcomes and Measures: All-cause and cause-specific mortality as identified as the primary cause of death from death certificate information. Results: Of the 357 420 persons included in the analysis, the majority of current and former cigar and pipe smokers were male (79.3%-98.0%), and smokers were more evenly divided by sex (46% of current daily smokers were male). There were 51 150 recorded deaths during follow-up. Exclusive current cigarette smokers (hazard ratio [HR], 1.98; 95% CI, 1.93-2.02) and exclusive current cigar smokers (HR, 1.20; 95% CI, 1.03-1.38) had higher all-cause mortality risks than never tobacco users. Exclusive current cigarette smokers (HR, 4.06; 95% CI, 3.84-4.29), exclusive current cigar smokers (HR, 1.61; 95% CI, 1.11-2.32), and exclusive current pipe smokers (HR, 1.58; 95% CI, 1.05-2.38) had an elevated risk of dying from a tobacco-related cancer (including bladder, esophagus, larynx, lung, oral cavity, and pancreas). Among current nondaily cigarette users, statistically significant associations were observed with deaths from lung cancer (HR, 6.24; 95% CI, 5.17-7.54), oral cancer (HR, 4.62; 95% CI, 1.84-11.58), circulatory death (HR, 1.43; 95% CI, 1.30-1.57), cardiovascular death (HR, 1.24; 95% CI, 1.11-1.39), cerebrovascular death (stroke) (HR, 1.39; 95% CI, 1.12-1.74), and chronic obstructive pulmonary disease (HR, 7.66; 95% CI, 6.09-9.64) as well as for daily smokers. Conclusions and Relevance: This study provides further evidence that exclusive use of cigar, pipes, and cigarettes each confers significant mortality risks.


Subject(s)
Cardiovascular Diseases/mortality , Cigar Smoking/epidemiology , Cigarette Smoking/epidemiology , Mortality , Neoplasms/mortality , Pipe Smoking/epidemiology , Pulmonary Disease, Chronic Obstructive/mortality , Adult , Aged , Aged, 80 and over , Cardiovascular Diseases/epidemiology , Cohort Studies , Female , Gastrointestinal Neoplasms/epidemiology , Gastrointestinal Neoplasms/mortality , Head and Neck Neoplasms/epidemiology , Head and Neck Neoplasms/mortality , Humans , Longitudinal Studies , Lung Neoplasms/epidemiology , Lung Neoplasms/mortality , Male , Middle Aged , Neoplasms/epidemiology , Pancreatic Neoplasms/epidemiology , Pancreatic Neoplasms/mortality , Proportional Hazards Models , Pulmonary Disease, Chronic Obstructive/epidemiology , United States/epidemiology , Urinary Bladder Neoplasms/epidemiology , Urinary Bladder Neoplasms/mortality
14.
MMWR Morb Mortal Wkly Rep ; 67(3): 97-102, 2018 Jan 26.
Article in English | MEDLINE | ID: mdl-29370150

ABSTRACT

Despite recent declines in cigarette smoking prevalence, the tobacco product landscape has shifted to include emerging tobacco products* (1,2). Previous research has documented adult use of smokeless tobacco and cigarettes by state (3); however, state-specific data on other tobacco products are limited. To assess tobacco product use in the 50 U.S. states and the District of Columbia (DC), CDC and the National Cancer Institute analyzed self-reported use of six tobacco product types: cigarettes, cigars, regular pipes, water pipes, electronic cigarettes (e-cigarettes), and smokeless tobacco products among adults aged ≥18 years using data from the 2014-2015 Tobacco Use Supplement to the Current Population Survey (TUS-CPS). Prevalence of ever-use of any tobacco product ranged from 27.0% (Utah) to 55.4% (Wyoming). Current (every day or some days) use of any tobacco product ranged from 10.2% (California) to 27.7% (Wyoming). Cigarettes were the most common currently used tobacco product in all states and DC. Among current cigarette smokers, the proportion who currently used one or more other tobacco products ranged from 11.5% (Delaware) to 32.3% (Oregon). Differences in tobacco product use across states underscore the importance of implementing proven population-level strategies to reduce tobacco use and expanding these strategies to cover all forms of tobacco marketed in the United States. Such strategies could include comprehensive smoke-free policies, tobacco product price increases, anti-tobacco mass media campaigns, and barrier-free access to clinical smoking cessation resources (1,4).


Subject(s)
Tobacco Products/statistics & numerical data , Tobacco Use Disorder/epidemiology , Adult , Health Surveys , Humans , Prevalence , United States/epidemiology
15.
Breast Cancer Res Treat ; 168(3): 625-630, 2018 Apr.
Article in English | MEDLINE | ID: mdl-29275435

ABSTRACT

PURPOSE: Defects in the homologous recombination (HR) DNA repair pathway sensitize tumors to therapeutics that target this pathway. A significant proportion of triple-negative breast cancers (TNBC) carry HR defects. The HRD assay is highly associated with sensitivity to neoadjuvant platinum-based chemotherapy in TNBC. Standard chemotherapy consists of some combination of an anthracycline, cyclophosphamide, and taxane. This study assesses the association of HR deficiency status with response to standard neoadjuvant chemotherapy in TNBC or BRCA1/2 mutation-associated breast cancer. METHODS: Tumor samples were retrospectively obtained from 45 TNBC patients and 2 BRCA1/2 mutant, hormone receptor-positive/HER2-negative breast cancer patients who received anthracycline- and/or taxane-based neoadjuvant chemotherapy at Stanford University or Cedars-Sinai Medical Centers. The HRD score and tumor BRCA1/2 mutation status were determined from baseline tumor biopsies. HR deficient tumors were those with a HRD score of ≥ 42 or a tumor BRCA1/2 mutation. Response was categorized by the residual cancer burden (RCB) index. RESULTS: HR deficient patients were more likely to achieve a pathologic complete response (pCR) compared with non-deficient patients (OR 13.06, CI 1.52-11.241, p = 0.0028). Among BRCA1/2 mutation wild-type patients, HR deficient patients were more likely to achieve a pCR (OR 16, 95% CI 1.65-160.41, p = 0.0041) compared with HR non-deficient patients. Further, HRD scores were highly concordant pre- and post-therapy (Spearman correlation > 99%). CONCLUSIONS: HR deficiency status is significantly associated with response to standard neoadjuvant chemotherapy in TNBC. This observation is consistent with the mechanisms of action of doxorubicin and cyclophosphamide as DNA damaging agents.


Subject(s)
BRCA1 Protein/genetics , BRCA2 Protein/genetics , Homologous Recombination/genetics , Triple Negative Breast Neoplasms/drug therapy , Adult , Aged , Anthracyclines/administration & dosage , Anthracyclines/adverse effects , Antineoplastic Combined Chemotherapy Protocols/administration & dosage , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Bridged-Ring Compounds/administration & dosage , Bridged-Ring Compounds/adverse effects , Female , Humans , Middle Aged , Mutation , Neoadjuvant Therapy/adverse effects , Neoadjuvant Therapy/methods , Taxoids/administration & dosage , Taxoids/adverse effects , Triple Negative Breast Neoplasms/classification , Triple Negative Breast Neoplasms/genetics , Triple Negative Breast Neoplasms/pathology
16.
Prev Med ; 111: 451-458, 2018 06.
Article in English | MEDLINE | ID: mdl-29277407

ABSTRACT

The National Cancer Institute's Skin Cancer Intervention across the Cancer Control Continuum model was developed to summarize research and identify gaps concerning skin cancer interventions. We conducted a mapping review to characterize whether behavioral interventions addressing skin cancer prevention and control from 2000 to 2015 included (1) technology, (2) environmental manipulations (policy and/or built environment), and (3) a theoretical basis. We included 86 studies with a randomized controlled or quasi-experimental design that targeted behavioral intervention in skin cancer for children and/or adults; seven of these were dissemination or implementation studies. Of the interventions described in the remaining 79 articles, 57 promoted only prevention behaviors (e.g., ultraviolet radiation protection), five promoted only detection (e.g., skin examinations), 10 promoted both prevention and detection, and seven focused on survivorship. Of the 79 non-dissemination studies, two-thirds used some type of technology (n=52; 65.8%). Technology specific to skin cancer was infrequently used: UVR photography was used in 15.2% of studies (n=12), reflectance spectroscopy was used in 12.7% (n=10), and dermatoscopes (n=1) and dosimeters (n=2) were each used in less than 3%. Ten studies (12.7%) targeted the built environment. Fifty-two (65.8%) of the studies included theory-based interventions. The most common theories were Social Cognitive Theory (n=20; 25.3%), Health Belief Model (n=17; 21.5%), and the Theory of Planned Behavior/Reasoned Action (n=12; 15.2%). Results suggest that skin cancer specific technology and environmental manipulations are underutilized in skin cancer behavioral interventions. We discuss implications of these results for researchers developing skin cancer behavioral interventions.


Subject(s)
Built Environment , Health Behavior , Skin Neoplasms/prevention & control , Social Theory , Technology , Humans , Skin Neoplasms/diagnosis , Skin Neoplasms/therapy , Ultraviolet Rays/adverse effects
17.
Nicotine Tob Res ; 20(11): 1327-1335, 2018 09 25.
Article in English | MEDLINE | ID: mdl-29059420

ABSTRACT

Introduction: The workplace is a major source of exposure to secondhand smoke from combustible tobacco products. Smokefree workplace policies protect nonsmoking workers from secondhand smoke and help workers who smoke quit. This study examined changes in self-reported smokefree workplace policy coverage among U.S. workers from 2003 to 2010-2011. Methods: Data came from the 2003 (n = 74,728) and 2010-2011 (n = 70,749) waves of the Tobacco Use Supplement to the Current Population Survey. Among employed adults working indoors, a smokefree workplace policy was defined as a self-reported policy at the respondent's workplace that did not allow smoking in work areas and public/common areas. Descriptive statistics were used to assess smokefree workplace policy coverage at two timepoints overall, by occupation, and by state. Results: The proportion of U.S. workers covered by smokefree workplace policies increased from 77.7% in 2003 to 82.8% in 2010-2011 (p < .00001). The proportion of workers reporting smokefree workplace policy coverage increased in 21 states (p < .001) and decreased in two states (p < .001) over this period. In 2010-2011, by occupation, this proportion ranged from 74.3% for blue collar workers to 84.9% for white collar workers; by state, it ranged from 63.3% in Nevada to 92.6% in Montana. Conclusions: From 2003 to 2010-2011, self-reported smokefree workplace policy coverage among indoor adult workers increased nationally, and occupational coverage disparities narrowed. However, coverage remained unchanged in half of states, and disparities persisted across occupations and states. Accelerated efforts are warranted to ensure that all workers are protected by smokefree workplace policies. Implications: This study assessed changes in the proportion of indoor workers reporting being covered by smokefree workplace policies from 2003 to 2010-2011 overall and by occupation and by state, using data from the Tobacco Use Supplement to the Current Population Survey. The findings indicate that smokefree workplace policy coverage among U.S. indoor workers has increased nationally, with occupational coverage disparities narrowing. However, coverage remained unchanged in half of states, and disparities persisted across occupations and states. Accelerated efforts are warranted to ensure that all workers are protected by smokefree workplace policies.


Subject(s)
Self Report , Smoke-Free Policy/legislation & jurisprudence , Smoke-Free Policy/trends , Smoking/legislation & jurisprudence , Smoking/trends , Workplace/legislation & jurisprudence , Adult , Female , Humans , Male , Middle Aged , Smoking/epidemiology , Tobacco Smoke Pollution/adverse effects , Tobacco Smoke Pollution/legislation & jurisprudence , Tobacco Smoke Pollution/prevention & control , United States/epidemiology
18.
Tob Control ; 27(e2): e112-e117, 2018 10.
Article in English | MEDLINE | ID: mdl-29180534

ABSTRACT

BACKGROUND: In the 1990s, California led the USA in state-level tobacco control strategies. However, after 2000, California lost ground on cigarette taxes, although it maintained higher levels of smoke-free homes among smokers. METHODS: Trends in per capita cigarette consumption were assessed through taxed sales data and from self-report in repeated national cross-sectional surveys. Linear regressions identified changes in trends after year 2000 separately for California and the rest of the USA. Using data from each state, a linear regression tested the association between different tobacco control strategies and per capita consumption. Change in self-reported per capita consumption was partitioned into contributions associated with initiation, quitting and reduction in cigarette consumption level. RESULTS: Both taxed cigarette sales and per capita consumption declined rapidly in the USA from 1985 to 2015. Declines were particularly fast in California before 2000 but slowed thereafter. In 2014, per capita consumption in California was 29.4 packs/adult/year, but 90% higher in the rest of the USA. Modelling state-level data, every $1 increase in cigarette taxes reduced consumption by 4.8 (95% CI 2.9 to 6.8) packs/adult/year. Every 5% increase in the proportion of smokers with smoke-free homes reduced consumption by 8.0 (95% CI 7.0 to 8.9) packs/adult/year. The different patterns in California and the rest of the USA are at least partially explained by these two variables. The slow down in per capita consumption in California can be attributed to changes in initiation, quitting and especially smokers reducing their consumption level. CONCLUSIONS: Tobacco control strategies need to be continually updated to maintain momentum towards a smoke-free society.


Subject(s)
Cigarette Smoking/epidemiology , Cigarette Smoking/trends , Smoking Prevention/statistics & numerical data , Taxes , Adolescent , Adult , Aged , California/epidemiology , Cigarette Smoking/legislation & jurisprudence , Cross-Sectional Studies , Female , Health Surveys/statistics & numerical data , Humans , Male , Middle Aged , Smoking Prevention/legislation & jurisprudence , United States/epidemiology , Young Adult
19.
Genet Med ; 20(1): 119-127, 2018 01.
Article in English | MEDLINE | ID: mdl-28726808

ABSTRACT

PurposePanel-based genetic testing has identified increasing numbers of patients with pancreatic ductal adenocarcinoma (PDAC) who carry germ-line mutations. However, small sample sizes or number of genes evaluated limit prevalence estimates of these mutations. We estimated prevalence of mutations in PDAC patients with positive family history.MethodsWe sequenced 25 cancer susceptibility genes in lymphocyte DNA from 302 PDAC patients in the Mayo Clinic Biospecimen Resource for Pancreatic Research Registry. Kindreds containing at least two first-degree relatives with PDAC met criteria for familial pancreatic cancer (FPC), while the remaining were familial, but not FPC.ResultsThirty-six patients (12%) carried at least one deleterious mutation in one of 11 genes. Of FPC patients, 25/185 (14%) were carriers, while 11/117 (9%) non-FPC patients with family history were carriers. Deleterious mutations (n) identified in PDAC patients were BRCA2 (11), ATM (8), CDKN2A (4), CHEK2 (4), MUTYH/MYH (3 heterozygotes, not biallelic), BRCA1 (2), and 1 each in BARD1, MSH2, NBN, PALB2, and PMS2. Novel mutations were found in ATM, BARD1, and PMS2.ConclusionMultiple susceptibility gene testing in PDAC patients with family history of pancreatic cancer is warranted regardless of FPC status and will inform genetic risk counseling for families.


Subject(s)
Carcinoma/epidemiology , Carcinoma/genetics , Genetic Predisposition to Disease , Germ-Line Mutation , Pancreatic Neoplasms/epidemiology , Pancreatic Neoplasms/genetics , Adult , Aged , Aged, 80 and over , Alleles , Female , Genetic Testing , Genotype , High-Throughput Nucleotide Sequencing , Humans , Male , Middle Aged , Prevalence , Registries , United States/epidemiology
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