Faculty Bibliography
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school:SOM
Department/Unit:Population Health
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12788
Performance of glomerular filtration rate estimating equations in a community-based sample of Blacks and Whites: the multiethnic study of atherosclerosis
BACKGROUND:The Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations are recommended for glomerular filtration rate (GFR) estimation in the general population. They have not been evaluated in community-based populations, including Blacks at higher levels of GFR, but are commonly applied in such populations. METHODS:In an ancillary study of Multi-Ethnic Study of Atherosclerosis conducted at one site, we evaluated the performance of the CKD-EPI equations for creatinine (eGFRcr), cystatin C (eGFRcys) or the combination (eGFRcr-cys) compared with GFR measured as plasma clearance of iohexol. RESULTS:Among 294 participants, the mean age was 71 (SD 9) years, 47% were Black, 48% were women and the mean measured GFR (mGFR) was 72.6 (SD 18.8) mL/min/1.73 m2. The CKD-EPI equations overestimated mGFR with a larger median bias for eGFRcr and eGFRcr-cys than eGFRcys [-8.3 (95% confidence interval -9.7, -6.5), -7.8 (-9.2, -6.2) and -3.7 (-5.0, -1.8) mL/min/1.73 m2, respectively], with smaller bias for those with lower compared with higher eGFR and by race compared with sex. CONCLUSION:The small differential bias of the CKD-EPI equation between races suggests that they can be used in Blacks as well as Whites in older community-based adults. The large differential bias in women versus men in all equations is in contrast to other studies and is unexplained. Further studies are required in multiracial and multiethnic community-based cohorts, taking into account differences in GFR measurement methods.
PMCID:6018782
PMID: 28505377
ISSN: 1460-2385
CID: 5584732
A Large-Scale Multi-ancestry Genome-wide Study Accounting for Smoking Behavior Identifies Multiple Significant Loci for Blood Pressure
Genome-wide association analysis advanced understanding of blood pressure (BP), a major risk factor for vascular conditions such as coronary heart disease and stroke. Accounting for smoking behavior may help identify BP loci and extend our knowledge of its genetic architecture. We performed genome-wide association meta-analyses of systolic and diastolic BP incorporating gene-smoking interactions in 610,091 individuals. Stage 1 analysis examined ∼18.8 million SNPs and small insertion/deletion variants in 129,913 individuals from four ancestries (European, African, Asian, and Hispanic) with follow-up analysis of promising variants in 480,178 additional individuals from five ancestries. We identified 15 loci that were genome-wide significant (p < 5 × 10-8) in stage 1 and formally replicated in stage 2. A combined stage 1 and 2 meta-analysis identified 66 additional genome-wide significant loci (13, 35, and 18 loci in European, African, and trans-ancestry, respectively). A total of 56 known BP loci were also identified by our results (p < 5 × 10-8). Of the newly identified loci, ten showed significant interaction with smoking status, but none of them were replicated in stage 2. Several loci were identified in African ancestry, highlighting the importance of genetic studies in diverse populations. The identified loci show strong evidence for regulatory features and support shared pathophysiology with cardiometabolic and addiction traits. They also highlight a role in BP regulation for biological candidates such as modulators of vascular structure and function (CDKN1B, BCAR1-CFDP1, PXDN, EEA1), ciliopathies (SDCCAG8, RPGRIP1L), telomere maintenance (TNKS, PINX1, AKTIP), and central dopaminergic signaling (MSRA, EBF2).
PMCID:5985266
PMID: 29455858
ISSN: 1537-6605
CID: 3141612
Linking Global Youth Tobacco Survey Data to the WHO Framework Convention on Tobacco Control: the Case for Egypt
Purpose: Limited publications from Egypt have focused on prevalence of tobacco use and tobacco control policy. We used four waves of the Egypt Global Youth Tobacco Survey (GYTS) between 2001 and 2014 and a cigarette affordability measure, to evaluate the implementation of the World Health Organization"™s MPOWER recommendations. Findings: Despite Egypt"™s implementation of several MPOWER recommendations, the enforcement of laws and regulations may be limited, and therefore had little to no impact on youth current smoking prevalence through 2014. Notably, experimentation with cigarette smoking has significantly increased between waves 2001 and 2014. Summary: There is a missed opportunity for implementing evidence-based interventions for youth tobacco control in Egypt. There is a strong need for initiatives aiming at meaningful taxation, enforcement of smoking bans in public places, promoting smoke-free homes, appropriate mass media counter-advertising, and effective cessation activities.
SCOPUS:85082495021
ISSN: 2196-2952
CID: 4681562
A Retrospective Nested Cohort Study of Emergency Department Revisits for Migraine in New York City
OBJECTIVE: Migraine causes more than 1.2 million visits to US emergency departments (EDs) annually. Many of these visits are revisits among patients who had already been treated in an ED for migraine. The goal of this analysis was to determine the frequency of headache revisits among patients who present to an ED for management of migraine and sociodemographic factors associated with the revisit. METHODS: Using the New York City Department of Health and Mental Hygiene Syndromic Surveillance database, we conducted a retrospective nested cohort study. We analyzed visits from 18 NYC EDs with discharge diagnoses in the first 6 months of 2015. We conducted descriptive analyses to determine the frequency of headache revisit within 6 months of an index ED visit for migraine and the elapsed time to revisit. Using multivariable logistic regression, we assessed associations between age, sex, poverty, and revisit. RESULTS: Of 1052 ED visits with an ED discharge diagnosis of migraine during the first 6 months of 2015, 277 (26.3%) had a headache revisit within 6 months of their initial migraine visit and 131 (12.5%) had two or more revisits at the same hospital. Of the revisits for headache, 9% occur within 72 hours and 46% occur within 90 days of the initial migraine visit. Sex, age, and poverty level were not associated with an ED revisit. CONCLUSION: More than a quarter of initial ED visits for migraine are followed by headache revisits in <6 months. Future work should target interventions to decrease the frequency of headache revisits.
PMID: 29094343
ISSN: 1526-4610
CID: 2765812
Use of web-based screening and brief intervention for unhealthy alcohol use by older adults
BACKGROUND:While the number of older adults who engage in unhealthy drinking is increasing, few studies have examined the role of online alcohol screening and intervention tools for this population. The objective of this study was to describe characteristics of drinking behaviors among older adults who visited an alcohol screening and intervention website, and compare them to younger adults. METHODS:We analyzed the responses of visitors to Alcoholscreening.org in 2013 (n=94,221). The prevalence of unhealthy alcohol use, behavioral change characteristics, and barriers to changing drinking were reported by age group (ages 21-49, 50-65, 66-80). Logistic regression models were used to identify characteristics associated with receiving a plan to either help cut back or quit drinking. RESULTS:Of the entire study sample, 83% of respondents reported unhealthy drinking (exceeding daily or weekly recommended limits) with 84% among 21-49year olds, 79% among 50-65year olds, and 85% among adults over 65. Older adults reported fewer negative aspects of drinking, lower importance to change, highest confidence and fewer barriers to change, compared to younger adults. In the adjusted model, females (AOR=1.45, p<0.001) and older adults (AOR=1.55, p<0.002) were more likely to receive a plan to change drinking behaviors. DISCUSSION/CONCLUSIONS:An online screening and intervention tool identified many older adults with unhealthy alcohol use behaviors and most were receptive to change. Web-based screening and interventions for alcohol use have the potential to be widely used among older adults.
PMCID:5808575
PMID: 29415854
ISSN: 1873-6483
CID: 2947762
Leveraging Medical Conferences and Webinars for Hands-On Clinical Quality Improvement: An Intervention to Improve Health Literacy-Informed Communication in Pediatrics
PMID: 28709388
ISSN: 1555-824x
CID: 3855502
Enhancing the Infrastructure of the Atherosclerosis Risk in Communities (ARIC) Study for Cancer Epidemiology Research: ARIC Cancer
PMCID:5835193
PMID: 29263187
ISSN: 1538-7755
CID: 5584862
Adolescent Pregnancy and Challenges in Kenyan Context: Perspectives from Multiple Community Stakeholders
OBJECTIVE:The key objective of this paper is to provide a phenomenological account of the mental health challenges and experiences of adolescent new mothers. We explore the role of social support and the absence of empathy plays in depression among pregnant adolescents. The project also collected data on the adolescents' caregiving environment which includes the adolescents' mothers, their partners, the community, and health care workers, as well as feedback from staff nurses at the maternal and child health centers. The caregivers provide additional insight into some of the barriers to access of mental health services and pregnancy care, and the etiology of adolescents' distress. METHODS:The interviews were conducted in two health facilities of Kariobangi and Kangemi's maternal and child health (MCH) centers that cover a huge low-income and low-middle-income formal and informal settlements of Nairobi. A grounded theory approach provided a unique methodology to facilitate discussion around adolescent pregnancy and depression among the adolescents and their caregivers. Our interviews were cut across four samples with 36 participants in total. The sample 1 comprised of eight pregnant adolescents who screened positive for depression in Kariobangi, sample 2 were six caregivers from both sites, and sample 3 were 22 new adolescent mothers from both sites. After individual interviews, we carried out one focused group discussion (FDG) in order to understand the cross-cutting issues and to gather some consensus on key issues, and the sample 4 were 20 community health workers, health workers, and nurses from both sites. We had one FGD with all health facility-based workers to understand the cross-cutting issues. The interviews in sample 1 and 2 were individual interviews with pregnant and parenting adolescents, and their caregivers. All our adolescent participants interviewed in sample 1 were screened for depression. Individual interviews followed the FGD. FINDINGS/RESULTS:Pregnant and parenting adolescents faced several adversities such as social stigma, lack of emotional support, poor healthcare access, and stresses around new life adjustments. We highlighted a few useful coping mechanisms and strategies that these adolescents were thinking to reduce their stress. Primary social support for pregnant and parenting teens comes from the adolescent's mother. The external family and male partners provide negligible support in the rearing of the child. While the mother's reactions to the daughters' pregnancy were empathetic sometimes, absence of food and resources made the mother distant and constraint in lending support. For those adolescents who were living with partners, in their new mother role, they had to negotiate additional challenges such as solutions to everyday childcare responsibilities and other family duties. The health care workers and community health workers confirmed that adolescent mothers have multiple needs, but there is a lack of holistic approach of service, and that their own training and capacities were very limited. CONCLUSIONS:Our paper highlights several individual stakeholder-related and system-level barriers in the MCH primary care setting that affect delivery of psychosocial support for pregnant adolescent. We have identified these knowledge, practice, and institutional gaps that need addressing through careful community and health service staff engagement using implementation strategies that are effective in low-resource settings. Pregnant adolescents are highly vulnerable group and mental health services needs to be understood better.
PMCID:5937539
PMID: 29744286
ISSN: 2196-8799
CID: 5831772
Correlates of engagement in group sex events among men who have sex with men in London who use geosocial-networking smartphone applications
Men who have sex with men (MSM) who attend group sex events (GSEs) tend to also engage in high-risk sexual behaviors and substance use that may place them at additional increased risk for becoming infected with HIV. These sorts of events may be facilitated by the use of geosocial-networking smartphone applications, where MSM may have access to a large virtual pool of potential partners. The purpose of the current study was to examine the prevalence of recent engagement in GSEs and its demographic and behavioral correlates among a sample of MSM ( n = 202). Log-binomial models were fit to assess correlates of engagement in GSEs in the preceding three months. Overall, 42.6% had engaged in a GSE in the preceding three months. In multivariable models, the use of inhalant nitrites (PR: 2.239; 95% CI: 1.119, 4.848; p = .024) and methamphetamine (PR: 7.601; 95% CI: 2.340, 24.691; p = .001) were associated with recent engagement in GSEs. Given the high prevalence of these potentially high-risk behaviors, future research should be conducted to examine the concurrent use of substance use and condom use at the GSEs to develop appropriate risk reduction interventions.
PMID: 28764613
ISSN: 1758-1052
CID: 2676832
Actual body weight or perceived body weight? Comment on 'childhood obesity and school absenteeism: a systematic review and meta-analysis' [Letter]
PMID: 29243337
ISSN: 1467-789x
CID: 2843832
