Searched for: school:SOM
Department/Unit:Population Health
Mapping urban air quality using mobile sampling with low-cost sensors and machine learning in Seoul, South Korea
Lim, Chris C; Kim, Ho; Vilcassim, M J Ruzmyn; Thurston, George D; Gordon, Terry; Chen, Lung-Chi; Lee, Kiyoung; Heimbinder, Michael; Kim, Sun-Young
Recent studies have demonstrated that mobile sampling can improve the spatial granularity of land use regression (LUR) models. Mobile sampling campaigns deploying low-cost (<$300) air quality sensors could potentially offer an inexpensive and practical approach to measure and model air pollution concentration levels. In this study, we developed LUR models for street-level fine particulate matter (PM2.5) concentration levels in Seoul, South Korea. 169 h of data were collected from an approximately three week long campaign across five routes by ten volunteers sharing seven AirBeams, a low-cost ($250 per unit), smartphone-based particle counter, while geospatial data were extracted from OpenStreetMap, an open-source and crowd-generated geographical dataset. We applied and compared three statistical approaches in constructing the LUR models - linear regression (LR), random forest (RF), and stacked ensemble (SE) combining multiple machine learning algorithms - which resulted in cross-validation R2 values of 0.63, 0.73, and 0.80, respectively, and identification of several pollution 'hotspots.' The high R2 values suggest that study designs employing mobile sampling in conjunction with multiple low-cost air quality monitors could be applied to characterize urban street-level air quality with high spatial resolution, and that machine learning models could further improve model performance. Given this study design's cost-effectiveness and ease of implementation, similar approaches may be especially suitable for citizen science and community-based endeavors, or in regions bereft of air quality data and preexisting air monitoring networks, such as developing countries.
PMID: 31362154
ISSN: 1873-6750
CID: 4010972
Parental well-being, couple relationship quality, and children's behavioral problems in the first 2 years of life
Hughes, Claire; Devine, Rory T; Mesman, Judi; Blair, Clancy
Adverse effects of early exposure to parental mood disturbance on child adjustment have been documented for both mothers and fathers, but are rarely examined in tandem. Other under-researched questions include effects of changes over time in parental well-being, similarities and contrasts between effects of parental mood disturbance on children's internalizing versus externalizing problems, and potential mediating effects of couple relationship quality. The current study involved 438 couples who reported symptoms of depression and anxiety at each of four time points (i.e., last trimester of pregnancy and 4, 14, and 24 months postbirth). Mothers and fathers also rated their couple relationship quality and their child's socioemotional adjustment at 14 months, as well as internalizing and externalizing problems at 24 months. Latent growth models indicated direct effects of (a) maternal prenatal well-being on externalizing problems at 24 months, and (b) paternal prenatal well-being on socioemotional problems at 14 months. Internalizing symptoms at 24 months showed only indirect associations with parental well-being, with couple relationship quality playing a mediating role. Our findings highlight the importance of prenatal exposure to parental mood disturbance and demonstrate that, even in a low-risk sample, poor couple relationship quality explains the intergenerational stability of internalizing problems.
PMID: 31339479
ISSN: 1469-2198
CID: 4015622
Protocol for the development and acceptability of a fertility-related decision aid for young women with breast cancer in Portugal
Gonçalves, Vânia; Travado, Luzia; Ferreira, Pedro Lopes; Quinn, Gwendolyn
INTRODUCTION/BACKGROUND:Young patients with breast cancer may face impaired fertility due to cancer treatments, which often leads to complex fertility decisions. To aid fertility decision-making, it is crucial that women have access to high-quality information; however, their fertility information needs are often unmet. Decision aids (DAs) are educational materials to assist with decision-making, by addressing individual values and preferences. In oncofertility, DAs may constitute a valuable resource to help patients obtain information and make better informed decisions. This paper reports on the protocol of the development and transcreation of a fertility-related DA booklet to support young Portuguese patients with breast cancer, originally developed and validated for an Australian audience. METHODS AND ANALYSIS/UNASSIGNED:Recent literature on clinical guidelines will be reviewed. A summary of these guidelines will be created and will inform the first round of DAs revisions. A forward translation process will translate the DA from Australian English to Portuguese. A multidisciplinary Portuguese experts panel will revise and give feedback on the scientific and cultural aspects of the DA content for Portuguese audience. Next, a backward translation process will assess content equivalence between the original and the final adapted version. Finally, Learner Verification (LV) will be used in a qualitative study of young patients with breast cancer and their partners. Two focus groups with 6-10 participants each will be conducted with: (1) recently diagnosed young patients with breast cancer; (2) breast cancer survivors and (3) their partners. Results from the DA acceptability assessment will inform its final version. Data will be analysed using content analysis and constant comparison method to identify key themes/textual units related to LV. ETHICS AND DISSEMINATION/UNASSIGNED:Ethical approval was granted by the Portuguese Institute of Oncology Porto. Results will be disseminated through peer-reviewed journals and presented at scientific meetings for academic and health professionals audiences.
PMID: 31345986
ISSN: 2044-6055
CID: 3988202
Adverse drug-related effects among electronic dance music party attendees
Palamar, Joseph J; Acosta, Patricia; Le, Austin; Cleland, Charles M; Nelson, Lewis S
BACKGROUND:Drug use is prevalent among electronic dance music (EDM) party attendees, but research is needed to determine the extent of adverse drug-related outcomes in this population in order to better inform prevention and harm reduction efforts. METHOD/METHODS:1029 adults were surveyed entering EDM parties in New York City in 2018. Those reporting past-year use of a drug were asked if they experienced a harmful or very unpleasant effect after use in which they were concerned about their immediate safety. They were also asked about co-use of other drugs and whether they sought help. RESULTS:We estimate that a third (33.5%) of EDM party attendees have experienced a drug-related adverse effect in the past year. Two-thirds (67.8%) of adverse effects involved use of alcohol. Relative to use, adverse effects most commonly resulted from use of opioids (e.g., prescription opioid misuse, 41.2%) or alcohol (33.9%). Among those reporting an adverse effect, concomitant use of other drugs was common, particularly among users of LSD (56.5%), ketamine (56.3%), cocaine (55.7%), and ecstasy/MDMA/Molly (47.7%). Adverse effects resulting from synthetic cathinone ("bath salt") use were most likely to result in a hospital visit (57.1%). CONCLUSION/CONCLUSIONS:Adverse effects from drug use are common among those in the EDM party scene and polydrug use appears to be a common risk factor. More research is needed, however, to determine the extent of event-specific adverse outcomes. Results can inform prevention and harm reduction efforts in this population.
PMID: 31349134
ISSN: 1873-4758
CID: 3988402
Air Pollution, Oxidative Stress, and Diabetes: a Life Course Epidemiologic Perspective
Lim, Chris C; Thurston, George D
PURPOSE OF REVIEW/OBJECTIVE:Ambient air pollution is strongly linked to cardiovascular and respiratory diseases. We summarize available published evidence regarding similar associations with diabetes across the life course. RECENT FINDINGS/RESULTS:) exposure contributes to more than 200,000 deaths from diabetes annually. There is a growing body of literature linking air pollution exposure during childhood and adulthood with diabetes etiology and related cardiometabolic biomarkers. A small number of studies found that exposure to air pollution during pregnancy is associated with elevated gestational diabetes risk among mothers. Studies examining prenatal air pollution exposure and diabetes risk among the offspring, as well as potential transgenerational effects of air pollution exposure, are very limited thus far. This review provides insight into how air pollutants affect diabetes and other metabolic dysfunction-related diseases across the different life stages.
PMID: 31325070
ISSN: 1539-0829
CID: 3978212
Keeping the Goal in Sight: Testing the Influence of Narrowed Visual Attention on Physical Activity
Balcetis, Emily; Riccio, Matthew T; Duncan, Dustin T; Cole, Shana
Rates of physical inactivity continue to rise in the United States. With this work, we tested the efficacy of a strategy affecting the scope of visual attention designed to promote walking as a form of exercise. Specifically, we examined the influence of narrowed attention on the frequency (Studies 1a, 1b, and 3) and efficiency (Studies 2 and 4) of physical activity in general (Studies 1 and 2) and within exercise bouts measured across multiple days (Studies 3 and 4). We provide convergent evidence by investigating both individual differences in (Studies 1 and 2) and experimentally manipulated patterns of visual attention orienting (Studies 3 and 4). We discuss implications of attentional strategies for self-regulation and fitness.
PMID: 31322053
ISSN: 1552-7433
CID: 3986372
Rationale and design of a nurse-led intervention to extend the HIV treatment cascade for cardiovascular disease prevention trial (EXTRA-CVD)
Okeke, Nwora Lance; Webel, Allison R; Bosworth, Hayden B; Aifah, Angela; Bloomfield, Gerald S; Choi, Emily W; Gonzales, Sarah; Hale, Sarah; Hileman, Corrilynn O; Lopez-Kidwell, Virginie; Muiruri, Charles; Oakes, Megan; Schexnayder, Julie; Smith, Valerie; Vedanthan, Rajesh; Longenecker, Chris T
Persons living with human immunodeficiency virus (PLHIV) are at increased risk of atherosclerotic cardiovascular disease (ASCVD). In spite of this, uptake of evidence-based clinical interventions for ASCVD risk reduction in the HIV clinic setting is sub-optimal. METHODS: EXTRA-CVD is a 12-month randomized clinical effectiveness trial that will assess the efficacy of a multi-component nurse-led intervention in reducing ASCVD risk among PLHIV. Three hundred high ASCVD risk PLHIV across three sites will be randomized 1:1 to usual care with generic prevention education or the study intervention. The study intervention will consist of four evidence-based components: (1) nurse-led care coordination, (2) nurse-managed medication protocols and adherence support (3) home BP monitoring, and (4) electronic health records support tools. The primary outcome will be change in systolic blood pressure and secondary outcome will be change in non-HDL cholesterol over the course of the intervention. Tertiary outcomes will include change in the proportion of participants in the following extended cascade categories: (1) appropriately diagnosed with hypertension and hyperlipidemia (2) appropriately managed; (3) at treatment goal (systolic blood pressure <130 mm Hg and non-HDL cholesterol < National Lipid Association targets). CONCLUSIONS: The EXTRA-CVD trial will provide evidence appraising the potential impact of nurse-led interventions in reducing ASCVD risk among PLHIV, an essential extension of the HIV care continuum beyond HIV viral suppression.
PMID: 31419622
ISSN: 1097-6744
CID: 4042902
Impact of a tobacco cessation intervention on adherence to tobacco use treatment guidelines among village health workers in Vietnam
Nguyen, Nam; Nguyen, Trang; Truong, Van; Dang, Kim; Siman, Nina; Shelley, Donna
Community health workers (in Vietnam referred to as village health workers) have the potential to play a key role in expanding access to evidence-based tobacco use treatment. We conducted a cluster randomized controlled trial in community health centers in Vietnam that compared the effect of provider advice and cessation assistance (i.e. brief counseling and patient education materials) (BC) vs. BC + three sessions of in-person counseling delivered by a village health worker (BC+R) on providers' and village health workers' adherence to tobacco use treatment guidelines. All village health workers and health care providers received training. This paper presents data on the effect of the intervention on village health workers' adherence to tobacco use treatment guidelines, including asking about tobacco use, advising smokers to quit, offering assistance and their attitude, norms, and self-efficacy related to tobacco use treatment. We examined changes in adherence to tobacco use treatment guidelines before and 12 months after the intervention among 89 village health workers working in the 13 community health centers enrolled in the BC+R study condition. Village health workers' adherence to tobacco use treatment guidelines increased significantly. Village health workers were more likely to ask about tobacco use (3.4% at baseline, 32.6% at 12 months), offer advice to quit (4.5% to 48.3%) and offer assistance (1.1% to 38.2%). Perceived barriers to treating tobacco use decreased significantly. Self-efficacy and attitudes towards treating tobacco use improved significantly. Increased adherence to tobacco use treatment guidelines was associated with positive attitudes towards their role in delivering tobacco use treatment and increasing awareness of the community health center smoke-free policy. The findings suggest that, with training and support systems, village health workers can extend their role to include smoking cessation services. This workforce could represent a sustainable resource for supporting smokers who wish to quit.
PMID: 31319786
ISSN: 1757-9767
CID: 3978042
Bolstering trust in the human papillomavirus vaccine through improved communication in the vaccine information statement
Constable, Catherine; Chapman, Carolyn Riley
PMID: 31253445
ISSN: 1873-2518
CID: 3964012
Opioid Use After Radical Prostatectomy: Nationwide, Population-Based Study in Sweden
Loeb, Stacy; Cazzaniga, Walter; Robinson, David; Garmo, Hans; Stattin, Pär
PURPOSE/OBJECTIVE:North American studies have reported that ∼3-7% of opioid-naïve surgical patients transition to chronic opioid use after a single prescription. We examined the risk of chronic opioid use following radical prostatectomy (RP) using nationwide Swedish data. MATERIALS AND METHODS/METHODS:For 25,703 men in National Prostate Cancer Register of Sweden who underwent RP, linkage was performed to the Prescribed Drug Register. Opioid use was assessed in three time periods: baseline (13-1 month preoperatively), perioperative (1 month before and after), and postoperative (1-12 months). Multivariable logistic regression was used to identify predictors of new late use (≥1 opioid prescription in three consecutive months >2 months after surgery). RESULTS:Overall, 16,368 (64%) men filled an opioid prescription during the 13 months before or after surgery. Use of strong opioids increased over time and use of weak opioids decreased. 1.9% of men had opioid prescriptions during the baseline period, followed by a spike around surgery (59%), which sharply decreased in the second postoperative month. However, thereafter the proportion of men with opioid prescriptions remained slightly higher (2.2%) compared to the pre-RP baseline. Among chronic late users, 57% were previous users and 43% were new chronic users. Higher cancer risk category, greater comorbidity, unmarried status, and low educational level were associated with risk of new chronic opioid use. CONCLUSIONS:Slightly more than half of Swedish filled an opioid prescription after RP, and <1% became chronic opioid users. These rates are lower than previous studies of postoperative opioid use from North America.
PMID: 31584849
ISSN: 1527-3792
CID: 4115702