Within-Neighborhood Dynamics: Disadvantage, Collective Efficacy, and Homicide Rates in Chicago

2018 ◽  
Vol 66 (3) ◽  
pp. 428-447 ◽  
Author(s):  
Jacob H Becker

Abstract Research on neighborhood structural conditions like concentrated disadvantage and crime largely focuses on between-neighborhood differences; for example, places with more disadvantage are expected to experience higher homicide rates. However, empirical research often does not consider within-neighborhood dynamics of structural stability and change. Furthermore, several recent studies have found cross-sectional associations between structural variables and crime outcomes can vary significantly across units, violating a key assumption of global modeling strategies. The current work explores if and how historical changes in disadvantage influence neighborhood collective efficacy and homicide rates, net of the level of disadvantage at a given time point. Collective efficacy theoretically mediates the relationship between conditions and crime, and is hypothesized to be the mechanism through which structural change influences homicide rates. It is also hypothesized that spatial variation in cross-sectional associations between disadvantage and social outcomes can be explained by accounting for within-neighborhood changes in disadvantage. Using a sample of Chicago neighborhoods and ordinary least squares and geographically weighted regression models, I find that within-neighborhood changes in disadvantage significantly predict neighborhood collective efficacy, though the effects of this change on homicide rates are not completely mediated by collective efficacy. Within-neighborhood change completely accounts for spatial variation in cross-sectional associations, offering one explanation of prior research findings. Within-neighborhood structural changes appear to disrupt collective efficacy and contribute to higher homicide rates than predicted by the level of disadvantage alone.

2016 ◽  
Vol 15 (1) ◽  
pp. 64-82 ◽  
Author(s):  
Jacob H. Becker

Several recent spatial analyses conclude the strong positive association typically found between neighborhood concentrated disadvantage and crime in cross–sectional studies significantly differs across neighborhoods. It is possible this spatial variation is due to within–neighborhood dynamics of continuity and change, as suggested by ecological theories of neighborhood crime. Using ordinary least–squares and geographically weighted regression models, I explore the role of within–neighborhood change on the disadvantage–homicide relationship across Chicago neighborhoods and find that controlling for historical changes in disadvantage within neighborhoods reduces—but does not eliminate—spatial variation in the cross–sectional relationship. Within–neighborhood changes in concentrated disadvantage from 1970 to 2000 are positively related to homicide rates, net of the level of disadvantage in 2000. This suggests the relationship is influenced to some degree by temporal continuity or change in the neighborhood ecological structure, consistent with the dynamic conceptualization of neighborhoods inherent to ecological theories of crime like social disorganization.


2015 ◽  
Vol 2 (1) ◽  
pp. 71 ◽  
Author(s):  
Chris Derauf ◽  
Diana Pandey ◽  
Juliette T. Liesinger ◽  
Euijung Ryu ◽  
Jeanette Y. Ziegenfuss ◽  
...  

Objectives: The development and severity of attention deficit hyperactivity disorder (ADHD) has been linked to a number of psychosocial risk factors. Research has shown that the amount of social capital in a community influences the physical and mental health of community members. We assessed the independent role of perceived neighborhood context, including physical and socioeconomic characteristics, and collective efficacy, a form of social capital, on ADHD prevalence. Methods: Cross-sectional study utilizing the 2007 National Survey of Children’s Health, a nationally representative dataset. The population of interest was children between the ages of four and seventeen living in randomly selected households. Multiple logistic regression models were used to assess the association between indices of perceived neighborhood socioeconomic conditions, built environment, and collective efficacy (study exposures) on risk of ADHD (outcome), controlling for pertinent individual and family risk factors.Results: 9.8 percent of children in the US (ages 4‐17) had ADHD as reported by their caregiver. In multivariate analysis, white race, male gender, increased geographic mobility, exposure to household smoke, exposure to > 2 hours/day TV, and maternal mental illness increased the odds of ADHD, while a two‐parent household reduced the odds. The highest level of perceived neighborhood collective efficacy was associated with reduced risk of ADHD compared to lower levels of perceived collective efficacy (adjusted OR: 0.785; 95% CI: 0.650-0.946; p=.011). Perceived neighborhood socioeconomic conditions and built environment were not associated with ADHD risk.Results: Nine percent of children in the US (ages 4-17 ) had ADHD as reported by their caregiver. Univariately, all 3 neighborhood characteristics were associated with risk of ADHD (p-value =.01, .04, and .0002 for socioeconomic conditions, built environment, and collective efficacy, respectively). After accounting for well-established risk factors for ADHD, perceived neighborhood socioeconomic conditions and built environment were no longer associated with ADHD, while collective efficacy remained significant (p=.0002).  Lower level of perceived neighborhood collective efficacy was associated with increased risk of ADHD (OR: 1.7; 95\% CI: 1.3-2.2, comparing the lowest with the highest level).Conclusions: Our study suggests that perceived neighborhood collective efficacy may buffer the impact of individual-and family-level risk factors for ADHD in children.


2018 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Shafaque Fatima ◽  
Saqib Sharif

Linking with the business case for diversity, this study examines whether the top management team (TMT) and the board of directors (BODs) diversity has a positive impact on financial institution (FI) performance in select countries of Asia least researched domain. We use data from 119 financial institutions across Asia for the year 2015, initially 1,447 institutions; however, incomplete data was excluded from final analysis. We use three proxies for diversity, that is, nationality diversity, gender diversity, and age diversity of TMT and BODs. To investigate the impact of TMT and BODs diversity, cross-sectional ordinary least-squares estimation is applied, using Return on Average Assets (ROAA%) as a measure of performance.  We find that nationality diversity and age diversity is positively and significantly related to FIs performance. Our evidence indicates that executives and board members with diverse exposure and younger age improve FIs profitability. However, there is no significant relationship between gender and FIs performance.


2020 ◽  
Vol 12 (3) ◽  
pp. 895 ◽  
Author(s):  
Cephas Paa Kwasi Coffie ◽  
Hongjiang Zhao ◽  
Isaac Adjei Mensah

The financial landscape of sub-Sahara Africa is undergoing major changes due to the advent of FinTech, which has seen mobile payments boom in the region. This paper examines the salient role of mobile payments in traditional banks’ drive toward financial accessibility in sub-Sahara Africa by using panel econometric approaches that consider the issues of independencies among cross-sectional residuals. Using data from the World Development Index (WDI) 2011–2017 on 11 countries in the region, empirical results from cross-sectional dependence (CD) tests, panel unit root test, panel cointegration test, and the fully modified ordinary least squares (FMOLS) approach indicates that (i) the panel time series data are cross-sectionally independent, (ii) the variables have the same order of integration and are cointegrated, and (iii) growth in mobile payment transactions had a significant positive relationship with formal account ownership, the number of ATMs, and number of new bank branches in the long-run. The paper therefore confirms that the institutional structure of traditional banks that makes them competitive, irrespective of emerging disruptive technologies, has stimulated overall financial accessibility in the region leading to overall sustainable growth in the financial sector. We conclude the paper with feasible policy suggestions.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Un Chul Park ◽  
Eun Kyoung Lee ◽  
Bo Hee Kim ◽  
Baek-Lok Oh

AbstractIn this cross-sectional study, we investigated choroidal thickness (CT) and scleral thickness (ST) in highly myopic eyes and their associations with ocular factors. Patients underwent widefield swept-source optical coherence tomography (OCT) to measure the CT and ST at the subfovea and 3000 μm superior, inferior, temporal, and nasal to the fovea and macular curvature. A total of 237 eyes (154 patients) were included. At all five measurement points, thinner CTs and STs were associated with longer axial lengths (r = − 0.548 to − 0.357, all P < 0.001) and greater macular curvatures (r = − 0.542 to − 0.305, all P < 0.001). The CT and ST were significantly thinner in eyes with posterior staphyloma than in those without at all measurement points (all P ≤ 0.006) but did not differ between eyes with the wide macular and narrow macular type of staphyloma. Eyes with myopic maculopathy of category ≥ 3 according to the International Meta-Analysis for Pathologic Myopia classification had significantly thinner CTs and STs than those with category ≤ 2 (all P ≤ 0.005). In highly myopic eyes, a decrease in the CT and ST was more pronounced in eyes with more structural changes, such as longer axial length, steeper macular curvature, and the presence of posterior staphyloma.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Gerard Alvarez ◽  
Cristian Justribo ◽  
Tobias Sundberg ◽  
Oliver P. Thomson ◽  
Matthew J. Leach

Abstract Background Although evidence-based practice (EBP) is largely supported across healthcare professions, its implementation in manual therapy professions such as osteopathy remains limited and debated. There is currently little knowledge of how Spanish osteopaths relate to EBP. Objectives The main aim of this study was to investigate the attitudes, skills and use of EBP among Spanish osteopaths. A secondary aim was to identify barriers and facilitators for the adoption of EBP in the Spanish osteopathic context. Methods National cross-sectional survey of Spanish osteopaths registered and non-registered to an osteopathic association in Spain. Eligible participants were invited by a range of recruitment strategies including email and social media campaigns to complete the Spanish-translated Evidence-Based practice Attitude and utilization Survey (EBASE) anonymously online. Results A total of 567 osteopaths completed the survey which represents an approximate response rate of 9%. Participant’s attitudes toward EBP were largely positive. Most respondents agreed or strongly agreed that EBP was necessary in the practice of osteopathy (89.6%) and that professional literature and research findings were useful to their day-to-day practice (88.9%). Levels of perceived skill in EBP were reported as low to moderate with lowest levels for items related to ‘research conduct’. Except reading/reviewing professional literature and using online search engines to find practice-related literature, participant engagement in all other EBP-related activities was generally infrequent. The perceived proportion of clinical practice that was based on clinical research evidence was reported to be very small. Main barriers to EBP uptake included a lack of clinical evidence in osteopathy and insufficient skills for applying research findings. Main facilitators of EBP uptake included access to full-text articles, internet at the workplace and online databases. Conclusions Spanish osteopaths were largely supportive of evidence-based practice, had low to moderate skills in EBP and engaged in EBP activities infrequently. Formal regulation of the profession in Spain and the inclusion of osteopathic programs into the university sector would potentially improve EBP skills and use.


Diagnostics ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1157
Author(s):  
María D. Díaz-Barreda ◽  
Isabel Bartolomé-Sesé ◽  
Ana Boned-Murillo ◽  
Antonio Ferreras ◽  
Elvira Orduna-Hospital ◽  
...  

Background: We study the retinal function measured by macular integrity assessment microperimetry (MAIA) and structural changes assessed by scanning swept source optical coherence tomography (SS-OCT) between healthy individuals and patients undergoing pars plana vitrectomy (PPV) after rhegmatogenous retinal detachment (RRD). Methods: Cross-sectional study. Early Treatment Diabetic Retinopathy Study (ETDRS) grids were measured by SS-OCT and compared with the MAIA parameters. Results: Thirty-eight eyes with RRD (19 macula-on and 19 macula-off) were compared with 113 healthy eyes. The retinal sensitivity and average total threshold were reduced in all sectors in the RRD group; macular integrity index was increased. Macular thicknesses in total retina and ganglion cell layer (GCL)++ protocols were higher in the RRD group in nasal outer (NO) and central (C) sectors and only in C sector for GCL+ protocol. Thicknesses were lower in total retina, GCL++ protocols in the temporal outer (TO) sector and in the GCL+ protocol in NO sector. Best-corrected visual acuity (BCVA) correlated moderately with retinal sensitivity in all sectors and in just several sectors with time between the date of surgery and the test. The central nasal (CN) sector thickness and the average total threshold were higher in the macula-on subgroup. Conclusions: RRD and subsequent surgery results in functional and structural changes, especially in individuals with macular detachment.


2021 ◽  
pp. 002242782098684
Author(s):  
Richard Rosenfeld ◽  
Joel Wallman ◽  
Randolph Roth

Objectives: Evaluate the relationship between the opioid epidemic and homicide rates in the United States. Methods: A county-level cross-sectional analysis covering the period 1999 to 2015. The race-specific homicide rate and the race-specific opioid-related overdose death rate are regressed on demographic, social, and economic covariates. Results: The race-specific opioid-related overdose death rate is positively associated with race-specific homicide rates, net of controls. The results are generally robust across alternative samples and model specifications. Conclusions: We interpret the results as reflecting the violent dynamics of street drug markets, although more research is needed to draw definitive conclusions about the mechanisms linking opioid demand and homicide.


Healthcare ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 342
Author(s):  
Bum Jung Kim ◽  
Lin Chen ◽  
Ling Xu ◽  
Yura Lee

This study examines the influence of self-rated health and subjective economic status on the life satisfaction of older Chinese immigrants in the United States. Data were obtained from a cross-sectional survey of 205 older Chinese immigrants aged 66 to 90 years living in Los Angeles and Honolulu. Ordinary Least Squares (OLS) regression analysis was employed to explore the independent effects of self-rated health and subjective economic status. The results demonstrated that self-rated health and subjective economic status were positively associated with life satisfaction. This cross-sectional study provides empirical evidence that self-rated health and subjective economic status are directly associated with subjective life satisfaction among older Chinese immigrants.


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