American Survey Research Articles

Unconditional Quantile Regression Approach: Effects of Education on Housework Time in the US and Japan

We compare the association between educational attainment and housework participation among single and married women in Japan and the US. Using the cross-sectional time-use diaries from the 2006 American Time Use Survey (ATUS) and the 2006 Japanese Survey on Time Use and Leisure Activities (STULA) and unconditional quantile regressions (UQR), we test whether educational attainment is associated with less time spent on housework in Japan compared to the US. We find that this assumption stands only for American women and non-married Japanese women. However, married Japanese women are unlikely to reduce participation in housework with an increase in their educational level. Married Japanese women are more likely to do more housework proportionately to the level of their education. The findings reveal the presence of a marriage penalty among highly educated Japanese women. In Japan, the institute of marriage places higher expectations regarding women’s housework participation on married women with higher levels of education, thereby penalising Japanese women with higher educational attainments. Our findings illustrate that the tenets of the resource-based and gender-centred frameworks developed based on the empirical findings in Western countries cannot always directly apply to the patterns observed in East Asia.

Prevalence of Informal Caregiving in States Participating in the US Patient Protection and Affordable Care Act Balancing Incentive Program, 2011-2018

The Balancing Incentives Program (BIP), established under the 2010 Patient Protection and Affordable Care Act provided federal funding for states to shift long-term care out of institutional settings and into the home. However, the association of its implementation with informal caregiving is not known. To evaluate the association between BIP participation and the prevalence and frequency of informal caregiving and socioeconomic disparities among caregivers. The cohort study included respondents to the 2011-2018 American Time Use Survey in BIP-adopting states and non-BIP-adopting states. Living in a state that had implemented the BIP after program implementation had begun (April 2012 to April 2018). Prevalence of caregiving among all respondents, frequency of caregiving, and minutes of daily sleep, a marker of well-being. Differences-in-differences (DID) regression analysis was used to compare these outcomes between BIP-adopting states and non-BIP-adopting states. The study included 38 343 respondents in BIP-adopting states (median age, 47 years [interquartile range (IQR), 31-61 years]; 51.9% women), of whom 7428 were caregivers (median age, 51 years [IQR, 37-61 years]; 55.6% women), and 26 437 respondents in non-BIP-adopting states (median age, 48 years [IQR, 32-62 years]; 52.7% women), of whom 5527 were caregivers (median age, 52 years [IQR, 38-62 years]; 57.9% women). There was no change in the prevalence of caregiving between BIP-adopting and non-BIP-adopting states after program implementation (DID, 0.00%; 95% CI, -0.01% to 0.01%). Caregivers in BIP-adopting states were more likely to provide daily care after implementation (DID, 3.2%; 95% CI, 0.3%-6.0%; P = .03) and report increased time sleeping (DID, 15.6 minutes; 95% CI, 4.9-26.2 minutes; P = .005) compared with caregivers in non-BIP-adopting states. This association was more pronounced among caregivers with more education (DID, 25.1 minutes; 95% CI, 6.5-43.8 minutes; P = .01) and higher annual family income (DID, 16.9 minutes; 95% CI, 5.9-27.9 minutes; P = .004) compared with caregivers in non-BIP-adopting states who had the same education and income levels, respectively. In this cohort study, the BIP was associated with increased daily caregiving and improved caregiver well-being. However, it may have disproportionately benefited caregivers of higher socioeconomic status, potentially exacerbating disparities in caregiver stress. Future policies should aim to mitigate this unintended consequence.

Identifying Asian American Attitudes Toward Immigration: Testing Theories of Acculturation, Group Consciousness, and Context Effects

In this study, I test a model of competing theoretical explanations of Asian American attitudes toward immigration by studying the effects of acculturation, group consciousness and political commonality with other groups, and contextual factors. Using the 2018 Civic Engagement and Political Participation of Asian American Survey, Asian Americans’ policy preferences on Syrian refugees, Deferred Action of Childhood Arrivals (DACA), the Muslim travel ban, and a border wall are examined. Multinomial logistic regression analyses reveal that acculturation explains positive attitudes toward immigration among Asian Americans whereas factors such as Asian identity, political commonality with other racial groups, and the perceived racial mix of neighborhoods have limited and mixed influence on Asian American immigration attitudes. As one of very few studies on immigrants’ attitudes toward immigration policies, this study contributes to our better understanding of how the fastest-growing immigrant group like Asian Americans determine their attitudes toward policies that target immigrants.

Zirconia restorations: An American Dental Association Clinical Evaluators Panel survey

BackgroundZirconia is a relatively new dental material used for indirect dental restorations. Little is known about how dental practitioners are using this material in their practice. MethodsA survey on zirconia restorations was developed and administered electronically through e-mail communications to the American Dental Association Clinical Evaluators (ACE) Panel on August 31, 2020. Reminders were sent to nonrespondents, and the survey closed 2 weeks after the launch date. ResultsWhen using zirconia for a restoration, respondents choose it to restore natural teeth (99%) more often than implants (76%). Almost all respondents (98%) use it for posterior crowns, whereas approximately two-thirds (61%) use it for anterior crowns. Restoration removal or replacement and shade matching and translucency were the top 2 cited disadvantages of zirconia, whereas most of the respondents (57%) cited flexural strength or fracture resistance as the biggest advantage. Fine diamonds and ceramic polishers are used most often to polish and adjust zirconia restorations, whereas coarse diamond rotary instruments and those made specifically for zirconia are most frequently used for removing these restorations. Compared with metal ceramic restorations, more than 50% of respondents experience debonding more often with zirconia restorations. ConclusionsDentists recognize the favorable fracture resistance and flexural strength properties of zirconia, and most use similar techniques when adjusting and removing this material. Removing these restorations and shade matching are a struggle for many. Practical ImplicationsDentists may benefit from tips on the best methods to remove, shade match, and adhesively bond zirconia restorations.

Time Spent Eating, by Immigrant Status, Race/Ethnicity, and Length of Residence in the United States.

IntroductionTime spent eating is associated with obesity and diet-related diseases. We examined the association between time adults spent eating, immigrant status, race/ethnicity, and race/ethnicity among adults in the United States.MethodsWe used multivariate linear regression to analyze a cross-sectional, nationally representative sample of respondents aged 19 years or older (N = 192,486) from the 2016 American Time Use Survey. The outcome measures were time spent per day on primary eating and drinking and secondary eating. The predictors were immigrant status, race/ethnicity, and years spent living in the United States.ResultsMultivariate adjusted minutes per day spent on primary eating and drinking were 66.4 for noncitizens, 66.5 for naturalized citizens, and 60.1 for US-born individuals. Multivariate adjusted minutes per day spent on secondary eating were 11.1 for noncitizens, 12.2 for naturalized citizens, and 12.9 for US-born individuals. Minutes per day spent on primary eating and drinking for immigrants by length of residence in the United States was 69.7 minutes for 5 years or less of residence, 67.9 minutes for 6 to 10 years of residence, 63.6 minutes for 11 to 15 years of residence, and 63.6 minutes for more than 15 years of residence. Minutes per day spent on secondary eating for immigrants by length of residence was 5.5 minutes for 5 years or less of residence, 9.7 minutes for 6 to 10 years of residence, 8.4 minutes for 11 to 15 years of residence, and 12.6 minutes for more than 15 years of residence.ConclusionTime spent eating varied by immigrant status and length of residence in the United States.

Racial Disparities in Financial Security, Work and Leisure Activities, and Quality of Life Among the Direct Care Workforce.

Personal care, home health, and nursing aides provide the majority of care to chronically ill and disabled older adults. This workforce faces challenging working conditions, resulting in high turnover and workforce instability that affect the quality of care for older adults. We examine financial security, work-life balance, and quality of life of Black, Hispanic, and workers of other race/ethnicity compared to White workers. We hypothesize that Black and Hispanic workers experience greater financial insecurity, spend more time on work-related activities and have less time available for leisure activities, and have a lower quality of life compared to White workers. To test these hypotheses, we analyze the American Time Use Survey using descriptive analyses and multivariable and compositional regression. Black and Hispanic individuals were 2-3 times more likely to live in poverty than White individuals. The time use analysis indicated that Black and Hispanic workers spent more time on work-related activities and less time on nonwork-related activities, including longer work commutes and less time exercising. In analyses of aggregated paid/unpaid work and leisure, Black workers were the only group that spent significantly more time working and less time on leisure activities compared to White workers. This may explain the lower quality of life that we only observed in Black workers. Racial/ethnic disparities in well-being among direct care workers may affect the care older adults receive and contribute to widening inequities in this workforce and society. Policymakers should direct efforts toward securing funding for workers, incentivizing employer provisions, and implementing racial equity approaches.

I Can’t Breathe

Since 2014, public opinion data suggests that whites have become more supportive of the Black Lives Movement. The recent murders of George Floyd and Breonna Taylor have prompted a national debate about the need to address systemic racism in policing within the United States. Recent studies have shown how racial resentment has spilled over into a wide range of political issues that are not associated with race; however, no current research examines how racial resentment might shape whites’ views toward Black Lives Matter. Employing the racial reaction theory and the 2016 American Election Study Survey, we hypothesize and confirm that whites with high levels of racial resentment, conservative ideology, and those who indicated support for Donald Trump hold negative attitudes toward the Black Lives Matter movement. Our results also show that Asians and Hispanics hold negative attitudes toward the Black Lives Matter movement, but that whites have the highest racial resentment levels. The results raise doubts about whether the recent shift in white public opinion is sustainable. Given that racial resentment is a predictor of support for Black Lives Matter, scholars and activists should approach white support for Black Lives Matter with caution because it is likely that increased racial resentment may lead to sustained white opposition to the movement.

Behavioral Intentions to Use Patient Portals to Disclose HIV and Other Sexually Transmitted Infection Testing Histories with Sexual Partners Among U.S. Sexual Minority Men.

Disclosure of HIV and other sexually transmitted infection (HIV/STI) testing history to sexual partners is low among gay, bisexual, and other U.S. sexual minority men (SMM). Patient portals (PP) could increase HIV/STI testing history disclosure. This study estimated the predictive validity of the Enhancing Dyadic Communication (EDC) latent construct for perceived behavioral intentions to use PP for HIV/STI test disclosures. A randomized subset of SMM completed the Patient Portal Sexual Health Instrument as part of the 2018 American Men's Internet Survey. Multivariable logistic regression models estimated associations between EDC and intentions to use PP for test disclosures. Among a sample of 1,509 SMM aged 15 to 77years, EDC was associated with intentions to use PP to disclose test history with main partners (aOR 2.17; 95% CI 1.90 to 2.47) and non-main partners (aOR 2.39; 95%CI 2.07 to 2.76). Assessing EDC could be useful in clinical settings for interventions encouraging patients to communicate with partners about testing.

Telework After COVID: A "Silver Lining" for Workers with Disabilities?

Purpose The COVID pandemic was a severe blow to all workers, but it may ultimately have a silver lining for some workers with disabilities if it makes work from home easier and more acceptable. In addition, the pandemic is shaking up traditional workplace structures and causing employers to rethink how essential tasks can be done, which may broaden their views of workplace accommodations. We assess the potential for the pandemic to improve employment opportunities for people with disabilities. Methods This article analyzes pre-COVID data on disability and home-based work from three representative data sources—the American Community Survey, American Time Use Survey, and Current Population Survey. We employ both cross-tabulations and regressions to predict work at home. Results We find that workers with disabilities are more likely than those without disabilities both to work primarily from home and to do any work at home. This is true for both employees and self-employed workers. Workers with disabilities face similar wage gaps in on-site and home-based work, indicating that while increased availability of home-based work may create more employment opportunities for workers with disabilities, it is unlikely to erase wage disparities. While workers with disabilities are currently more likely to be working primarily from home, only 34% are in occupations with high potential for home-based work, compared to 40% of workers without disabilities. Conclusions Workers with disabilities are currently more likely to work from home and many may benefit from expanded work-at-home opportunities, but the types of jobs they hold constrain this potential. Research is needed to see how home-based work evolves as the economy recovers from the pandemic over the next several years.

A Pilot Review of Outcomes in Pediatric MDS: Validating Methods for a North American Multicenter Study

BACKGROUND: Pediatric myelodysplastic syndromes (MDS) constitute a heterogeneous group of rare blood disorders characterized by dysplastic, ineffective hematopoiesis that portends a poor prognosis. We completed a North American survey of clinical approaches to pediatric MDS, which demonstrated a lack of national consensus on diagnosis and treatment. Little progress has been made to improve outcomes and there is no modern data on the demographics, clinical characteristics, and outcome of children and adolescents with MDS in Northern America. There is a critical need for a North American retrospective study which will serve as a reference for future prospective clinical trials. To validate the accuracy of our proposed clinical response criteria and to ensure the functionality of our retrospective database, we completed a pilot 12-year retrospective chart review documenting the diagnosis and outcomes of children and adolescents with confirmed or suspected diagnosis of MDS. METHODS: We conducted a retrospective chart review of subjects between 0 and 24 years of age at diagnosis, diagnosed between January 2008 and December 2020 with primary or secondary MDS at the Children's Hospital Colorado. Demographics, disease characteristics, treatment, and outcomes were recorded on 18 subjects. Diagnosis was made based on the 2016 World Health Organization (WHO) Classification of MDS. Overall survival (OS) was measured from time of diagnosis to death. Event-free survival (EFS) was measured from time of diagnosis to first event (death, relapse, or refractory event necessitating additional therapy). Overall Response was determined by using three criteria - Cytopenia Response, Blast Response, and Cytogenetic Response (Table 1). Categorical variables were summarized using frequency and percentage (n, %) and continuous variables with median and interquartile range (median, IQR). Kaplan Meier (KM) curves were reported for OS and EFS, with patients censored at the last follow-up date if an event did not occur. RESULTS: Of eighteen subjects, sex was represented equally (50% female) with a median (IQR) age of 14.3 years (9.8,17). Four (23%) presented with refractory cytopenia of childhood, 8 (45%) with overt bone marrow blasts, and 6 (33%) with MDS-Unclassified with diagnosis based on various MDS-defining cytogenetic abnormalities accompanied by peripheral cytopenias. Five (28%) had a genetic predisposition, 6 (33%) were deemed treatment-related, and 7 (39%) were idiopathic with no identifiable cause. A cytogenetic defect of chromosome 7 was identified in 9/17 (53%) of subjects. Ten (56%) received a form of cytoreductive therapy prior to hematopoietic stem cell transplant (HSCT); 8 (80%) were treated with a demethylating agent (2 decitabine monotherapy, 4 azacitidine monotherapy, and 2 dual therapy azacitidine and venetoclax). Seventeen (94%) underwent HSCT from a variety of donor sources including 2 matched-related bone marrow, 2 matched-related peripheral blood, 4 matched-unrelated bone marrow, 1 matched-unrelated peripheral blood, 6 matched-unrelated cord-blood, and 2 haplo-identical bone marrow. Eleven (61%) were alive at last follow up, however, only 8 (44%) remained in Complete Remission. The 1-year survival rate was 83% (95% CI: 67%-100%), 3 year was 58% (37%-92%), and 5 year was 44% (21%-90%) (Figure 1). Fourteen (78%) experienced an event. The 1-year EFS rate was 28% (95% CI: 13%-59%) and 5-year EFS rate was 19% (6%-55%) (Figure 1). CONCLUSION: Despite advances in cytoreduction and HSCT, we found pediatric MDS to remain a highly morbid disease with a 5-year OS of 44%, 1-year EFS of only 28%, and inadequate first-line therapies. Attempts to improve outcomes require the development of standardized diagnostic and clinical response criteria. This study piloted clinical response criteria on a single-institution cohort. Statistical power is limited by small sample size, therefore, we have secured funding to complete a large multi-center North American retrospective in collaboration with the North American Pediatric Aplastic Anemia Consortium (NAPAAC). The multi-center study will help validate proposed clinical response criteria and guide the development of the first prospective interventional trials for pediatric MDS in North America. Disclosures No relevant conflicts of interest to declare.

The structure of foreign policy attitudes among middle power publics: a transpacific replication

ABSTRACT Empirical models illustrating how mass publics organise their views on foreign policy issues abound. Models that posit militant internationalism and cooperative internationalism as the two factors structuring mass foreign policy attitudes and that typically rely on American survey data have given way to models positing a larger number of underlying factors supported by cross-national survey data. Still, there are few studies assessing the cross-national validity of multi-factor models. Further, middle power states that must navigate between international leadership and followership remain understudied. This article draws on new survey data from Canada and Australia—two archetypal middle power states—to replicate a recent and influential model of foreign policy attitudes comprised of four factors: cooperative internationalism, militant internationalism, isolationism, and support for global justice. Using an exploratory structural equation modelling (ESEM) framework, it finds that the four-factor structure of foreign policy attitudes observed in the United States, United Kingdom, France and Germany obtains among the Canadian and Australian publics, yet there are country-specific nuances that suggest differences in the ways Canadians and Australians perceive foreign policy options.

Management of Unilateral Cervical Facet Joint Dislocation in Neurologically Intact Patients: Results of an Ao Spine latin American Survey

The treatment of unilateral CFD in patients without neurologic deficits remains controversial, especially in the choice of the best surgical approach. Our objective is to determine the way spine surgeons from Latin America manage this condition. A survey regarding management and surgical strategies was conducted by the AO Spine Latin American Trauma Study Group considering the treatment of unilateral CFD. All AO Spine Latin American Trauma Study Group members were sent a link to the survey, among whom 285 replied, with 197 respondents answering all the questions. Nonsurgical management was considered by 25% of the surgeons. The majority stated that magnetic resonance imaging is necessary (65%) to treat this type of patient. A posterior approach was preferred by 44%, an anterior approach by 29%, and a combined approach by 25%, while 2.2% did not answer. Traction was not used by the majority of respondents (62%). In the setting of an anterior disk herniation, the majority of surgeons preferred to employ an anterior (45%) or combined (44%) approach versus an isolated posterior approach (only 0.5%). Comparing early versus late cervical trauma, fewer surgeons adopted an isolated anterior approach with the latter (29% vs. 15%). Wide variations exist in the management of unilateral CFD by Latin American surgeons, with early injuries generally treated using either an anterior or posterior approach and treated early but after an MRI, while a combined approach is used more commonly with late injuries. Either an anterior or combined approach is used when disk herniation is present.

Rural, urban, and suburban differences in influenza vaccination coverage among children

Influenza vaccination is the primary way to prevent influenza, yet influenza vaccination coverage remains low in the United States. Previous studies have shown that children residing in rural areas have less access to healthcare and lower vaccination coverage for some vaccines. Influenza vaccination coverage among children 6 months–17 years by rural/urban residence during the 2011–12 through 2018–19 influenza seasons was examined using National Immunization Survey-Flu data. The Council of American Survey Research Organizations response rates for National Immunization Survey-Flu ranged from 48% to 65% (2011–12 through the 2017–18 seasons) for the landline sample and 20%–39% (2011–12 through the 2018–19 seasons) for the cellular telephone sample. Children residing in rural areas had influenza vaccination coverage that ranged from 7.9 (2012–13 season) to 12.6 (2016–17 season) percentage points lower than children residing in urban areas, and ranged from 4.5 (2012–13 season) to 7.4 (2016–17 season) percentage points lower than children residing in suburban areas. The differences in influenza vaccination coverage among rural, suburban, and urban children were consistent over the eight seasons studied. Lower influenza vaccination coverage was observed among rural children regardless of child’s age, mother’s education, household income, or number of children under 18 years of age in the household. Rural versus urban and suburban differences in influenza vaccination coverage remained statistically significant while adjusting for selected sociodemographic characteristics. A better understanding of the reasons for lower childhood influenza vaccination coverage for children in rural and suburban areas is needed.

Management of non-invasive tumours, benign tumours and breast cancer during the COVID-19 pandemic: recommendations based on a Latin American survey

IntroductionThe COVID-19 pandemic has changed health systems across the world, both in general hospitals and in oncology institutes or centres.For cancer specialists, particularly breast cancer (BC), the COVID-19 pandemic represents a combination of challenges since the hospital resources and staff have become more limited; this has obliged oncology specialists to seek a consensus and establish which patients with BC require more urgent attention and which patients can wait until there is a better control of this pandemic. The health system in Latin America has some special characteristics; in some of the countries, there are shortages which limit access to several specialities (surgery, clinical oncology and radiotherapy) in some regions.ObjectiveAfter a systematic review of the most recent literature regarding the management of BC during the COVID-19 pandemic, the main objective is to understand the position of the different Latin American Societies of Mastology in terms of available alternatives for the treatment of BC.MethodsAfter carrying out a comprehensive and exhaustive search of the most recent guides on the management of BC during the COVID-19 pandemic, the board members of the Latin American Federation of Mastology invited, via email, different specialists, all experts in BC care, to complete an anonymous survey online.The survey was distributed between 30 and 10 May 2020. The survey included 27 questions on four topics: demographic information, consultations, imaging and treatment of BC.The questionnaire was sent and then distributed to various health specialists including breast surgeons, clinical oncologists, radiation oncologists and radiologists via the Presidents of the different Latin American Societies of Mastology in 18 countries. The results are summarised as tallies based on the number of responses to each question.ResultsA total of 499 responses were received. The majority of the respondents were males (275 (55.11%)); 290 participants were over 45 years (58.11%).The questionnaire presented those surveyed with three possible answers (agree, disagree and neither agree nor disagree). The results reflect that there was consensus in the majority of situations presented. Only seven questions revealed disagreement among those responding. The results are presented as recommendations.ConclusionThe management of patients with BC presents unique challenges during the current world health situation produced by COVID-19 pandemic. Breast care specialists (surgical oncologists, breast care clinicians, clinical oncologists, radiation oncologists and radiologists) from 18 countries in Central and South America submitted through their responses and recommendations for the treatment of BC during the COVID-19 pandemic.

Conventional and unconventional participation in Latin America: a hierarchical latent class approach

AbstractBuilding on past research, we implement a hierarchical latent class model to analyze political participation from a comparative perspective. Our methodology allows simultaneously: (i) estimating citizens’ propensity to engage in conventional and unconventional modes of participation; (ii) classifying individuals into underlying “types” capturing within- and cross-country variations in participation; and (iii) assessing how this classification varies with micro- and macro-level factors. We apply our model to Latin American survey data. We show that our method outperforms alternative approaches used to study participation and derive typologies of political engagement. Substantively, we find that the distribution of participatory types is similar throughout the continent, and that it correlates strongly with respondents’ socio-demographic characteristics and crime victimization.

Bonding crowns and bridges with resin cement: An American Dental Association Clinical Evaluators Panel survey

BackgroundBonding crowns and bridges with resin cement can improve retention and reinforcement of the restoration. However, there is variation in the steps taken by different practitioners to achieve this goal. MethodsThe authors developed a survey on bonding dental crowns and bridges with resin cement and distributed it electronically to the American Dental Association Clinical Evaluators (ACE) Panel on May 22, 2020. The survey remained open for 2 weeks. Descriptive data analysis was conducted using SAS Version 9.4. ResultsA total of 326 panelists responded to the survey, and 86% of respondents who place crowns or bridges use resin cements for bonding. When placing a lithium disilicate restoration, an almost equal proportion of respondents etch it with hydrofluoric acid in their office or asked the laboratory to do it for them, and more than two-thirds use a silane primer before bonding. For zirconia restorations, 70% reported their restorations are sandblasted in the laboratory, and 39% use a primer containing 10-methacryloyloxydecyl dihydrogen phosphate. One-half of respondents clean their lithium disilicate or zirconia restorations with a cleaning solution. Resin cements used with a primer in the etch-and-rinse mode are the most widely used. The technique used to cure and clean excess resin cement varies among respondents. ConclusionsThe types of resin cements used, tooth preparation, crown or bridge preparation, and bonding technique vary among this sample. Practical ImplicationsAlthough many dentists bond crowns and bridges on the basis of best practices, improvement in the process may be achieved by dentists communicating with their laboratory to confirm the steps performed there, ensuring an effective cleaning technique is used after try-in and verifying that the correct primer is used with their chosen restorative material.

Political Inequality in the Digital World: The Puzzle of Asian American Political Participation Online

This paper adds to existing literature by reassessing the racial participation gap after placing online activity within the repertoire of minorities’ political actions. Even though Asian Americans are the most resourced in terms of Internet access, I theorize about how individual and structural-level impediments uniquely disadvantage this group from participating in politics online—widening overall participation disparities. Using data from the 2016 National Asian American Survey, I find that while the racial participation gap is similar for Latina/os and African Americans compared to whites, regardless of the activity’s platform either offline or online, disparities magnify solely for Asian Americans when considering digital modes of political behavior. The paper ends by noting how the Internet may contribute to rather than solve issues of political inequality across race and discusses distortions in which political voices are heard or muted offline and online.

The E-Bike Potential: Estimating regional e-bike impacts on greenhouse gas emissions

Electric bicycles (e-bikes) have been found to offer a promising solution to reduce the greenhouse gas (GHG) impact of a region’s passenger transportation system. Using data from a North American survey of e-bike owners, a mode replacement model was adapted and augmented to consider the case of Portland, OR for various levels of e-bike person miles traveled (PMT) mode share penetration. It was estimated that for a 15% e-bike PMT mode share, car trip mode share could be reduced from 84.7% to 74.8%. Total car PMT per day could be reduced from 28.9 million to 25.5 million. Furthermore, carbon dioxide (CO2) emissions from passenger transportation could be reduced by 12% after accounting for e-bike emissions from electricity generation and induced e-bike trips. An individual e-bike could provide an average reduction of 225 kg CO2 per year. These estimates show that e-bikes have the potential to help cities and regions achieve their climate goals. Additionally, this research can be used to support policies and programs necessary to facilitate the growth of this emerging mode to realize carbon reduction impacts.

Objective measurement of physical activity and sedentary behavior among South Asian adults:A systematic review.

BackgroundSouth Asians are one of the fastest growing ethnic groups in western countries with a high incidence of chronic diseases like metabolic syndrome and cardiovascular disease occurring at younger ages and lower body weight compared with white Europeans. Physically active lifestyle and reduced sedentary time are modifiable risk factors that can decrease burden of chronic diseases. Population-level surveys based on self-report show South Asians engage in low levels of physical activity. Because of known limitations with self-report data, we aimed to synthesize available evidence to generate a physical activity /sedentary time profile of South Asians from studies using accelerometry.MethodsWe systematically searched Medline, EMBASE, CINAHL, PsycINFO, and SportDiscus. We included studies applying accelerometry to measure physical activity /sedentary time under free-living. Studies with an exclusive focus on drugs or including participants with health conditions/physical disability, and special populations (athletes/pregnant women) were excluded. Two authors independently adjudicated inclusion of citations at title/abstract and full text. We applied a standardized data abstraction form to extract relevant data. We evaluated methodological quality using Newcastle Ottawa Quality Assessment Scale. Due to variability and inconsistencies in measurement and reporting of physical activity /sedentary time, we only provide a narrative synthesis.FindingsWe identified only 14 studies(n = 1,338). Despite using similar accelerometry assumptions, we noted variability in reported outcomes for physical activity and sedentary time. Sedentary time ranged from 482(98) to 587 min/day. Mean light physical activity ranged from 211.69(67. 38) to 574(227) min/day. Moderate to vigorous physical activity among South Asian women ranged from 17–41 min/day and among men, 32–43 min/day.ConclusionSouth Asians exhibited higher levels of physical activity when compared to the Canadian population level survey but not when compared to the American population level survey. Overall, fewer studies, and small sample sizes led to considerable variability limiting any effective comparisons. Results highlight the importance of conducting methodologically robust studies based on random sampling to advance the field, and to capture true levels of sedentary time and physical activity in the South Asian population.

The Dual Identity of Asian Americans

ObjectiveThis article investigates whether gains in ethnic identity reduce pan‐ethnic identity among Asian American and Pacific Islanders (AAPI).MethodsOrdered logit regression using data from the 2016 National Asian American Survey (NAAS).ResultsGains in ethnic identity do not reduce pan‐ethnic identity among AAPI. As importance of ethnic identity moves from “not at all” to “extremely,” log odds of reporting higher levels of pan‐Asian identity are about three to four times higher. Furthermore, AAPI who value both ethnic and pan‐Asian identities show similar support for AAPI political candidates as those who identify in only ethnic or only pan‐Asian terms.ConclusionIdentity politics and disaggregated AAPI data are not inherently divisive.