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Dive into the research topics where Ryan Richard Ruff is active.

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Featured researches published by Ryan Richard Ruff.


Annals of Epidemiology | 2015

Estimating the effects of a calorie-based sugar-sweetened beverage tax on weight and obesity in New York City adults using dynamic loss models

Ryan Richard Ruff; Chen Zhen

PURPOSE Sugar-sweetened beverages (SSBs) contribute to weight gain and increase the risk of obesity. In this article, we determine the effects of an innovative SSB tax on weight and obesity in New York City adults. METHODS Dynamic weight loss models were used to estimate the effects of an expected 5800-calorie reduction resulting from an SSB tax on weight and obesity. Baseline data were derived from the New York City Community Health Survey. One, five, and 10-year simulations of weight loss were performed. RESULTS Calorie reductions resulted in a per-person weight loss of 0.46 kg in year 1 and 0.92 kg in year 10. A total of 5,531,059 kg was expected to be lost over 10 years when weighted to the full New York City adult population. Approximately 50% of overall bodyweight loss occurred within the first year, and 95% within 5 years. Results showed consistent but nonsignificant decreases in obesity prevalence. CONCLUSIONS SSB taxes may be viable strategies to reduce obesity when combined with other interventions to maximize effects in the population.


Community Dentistry and Oral Epidemiology | 2016

Resiliency and socioemotional functioning in youth receiving surgery for orofacial anomalies

Ryan Richard Ruff; Lacey Sischo; Hillary L. Broder

OBJECTIVES Restorative interventions for cleft lip and palate involve annual evaluations, adjunct treatment, and multiple surgeries. The purpose of this study was to investigate the longitudinal impact of cleft surgery on psychosocial functioning among youth with cleft. METHODS Data were derived from a 5-year, multicenter, prospective longitudinal study of children with cleft (N = 1196). Children completed psychological inventories for self-concept, anxiety, depression, mastery, and relatedness. Multilevel mixed-effects models were used to analyze the effects of craniofacial surgery for cleft on psychosocial outcomes over time. RESULTS There were 1196 participants at baseline, of whom 258 (27.5%) received a surgical intervention prior to their 1st follow-up visit. Approximately 78% of participants had cleft lip and palate, and 22% had cleft palate only. Surgery receipt was significantly associated with lower relatedness (β = -1.48, 95% CI = -2.91, -0.05) and mastery (β = -1.32, 95% CI = -2.49, -0.15) scores, although overall scores appeared to increase over time. Surgery was not related to anxiety (β = -0.15, 95% CI = -1.08, 0.79), depression (β = 0.18, 95% CI = -0.65, 1.01), and self-concept (β = -0.84, 95% CI = -1.83, 0.15). The treatment-time interaction was not significant. Significant differences in psychosocial functioning were found across sex, race/ethnicity, and age groups. CONCLUSIONS Surgery may have negative short-term impacts on psychosocial functioning, although effects may diminish over time. Given the limited postsurgical follow-up period, long-term change in psychological well-being and the moderating effects of surgery may not be fully realized. Further follow-up of children with cleft through adulthood to explore developmental trajectories of psychosocial functioning in more detail is recommended.


Health and Quality of Life Outcomes | 2016

Minimally important difference of the Child Oral Health Impact Profile for children with orofacial anomalies

Ryan Richard Ruff; Lacey Sischo; Hillary L. Broder

BackgroundThe Child Oral Health Impact Profile (COHIP) is an instrument designed to measure the self-reported oral health-related quality of life of children between the ages of 8 and 15, including domains for oral health, functional well-being, social-emotional well-being, school environment and self-image. The purpose of this study was to estimate the minimally important difference (MID) of the COHIP for patients with cleft lip/palate.MethodsData from a 6-year, prospective, longitudinal cohort study of children with cleft lip/palate were analyzed to estimate the MID. Analysis was restricted to patients with data at baseline and first follow-up and not receiving a surgical intervention in the intervening years (N = 281). MIDs were estimated via the anchor-based method, using the Global Assessment of Change, and the effect size distribution method.ResultsBased on the distributional method, the minimally important differences were 0.16 (oral health), 0.12 (functional), 0.22 (social-emotional), 0.21 (school environment) and 0.19 (self-image). MID anchor estimates for COHIP domains ranged from −0.32 to 0.84. The anchor-based and effect size MID estimates for the overall COHIP score were 2.95 and 0.25, respectively.ConclusionThe minimally important difference of the Child Oral Health Impact Profile is recommended for interpreting clinically meaningful change in patients with cleft lip/palate.


Geospatial Health | 2016

Perceived spatial stigma, body mass index and blood pressure: a global positioning system study among low-income housing residents in New York City

Dustin T. Duncan; Ryan Richard Ruff; Basile Chaix; Seann D. Regan; James H. Williams; Joseph Ravenell; Marie A. Bragg; Gbenga Ogedegbe; Brian Elbel

Previous research has highlighted the salience of spatial stigma on the lives of low-income residents, but has been theoretical in nature and/or has predominantly utilised qualitative methods with limited generalisability and ability to draw associations between spatial stigma and measured cardiovascular health outcomes. The primary objective of this study was to evaluate relationships between perceived spatial stigma, body mass index (BMI), and blood pressure among a sample of low-income housing residents in New York City (NYC). Data come from the community-based NYC Low-income Housing, Neighborhoods and Health Study. We completed a crosssectional analysis with survey data, which included the four items on spatial stigma, as well objectively measured BMI and blood pressure data (analytic n=116; 96.7% of the total sample). Global positioning systems (GPS) tracking of the sample was conducted for a week. In multivariable models (controlling for individual-level age, gender, race/ethnicity, education level, employment status, total household income, neighborhood percent non-Hispanic Black and neighborhood median household income) we found that participants who reported living in an area with a bad neighborhood reputation had higher BMI (B=4.2, 95%CI: -0.01, 8.3, P=0.051), as well as higher systolic blood pressure (B=13.2, 95%CI: 3.2, 23.1, P=0.01) and diastolic blood pressure (B=8.5, 95%CI: 2.8, 14.3, P=0.004). In addition, participants who reported living in an area with a bad neighborhood reputation had increased risk of obesity/overweight [relative risk (RR)=1.32, 95%CI: 1.1, 1.4, P=0.02) and hypertension/pre-hypertension (RR=1.66, 95%CI: 1.2, 2.4, P=0.007). However, we found no differences in spatial mobility (based GPS data) among participants who reported living in neighborhoods with and without spatial stigma (P>0.05). Further research is needed to investigate how placebased stigma may be associated with impaired cardiovascular health among individuals in stigmatised neighborhoods to inform effective cardiovascular risk reduction interventions.


Behavioral Medicine | 2018

Neighborhood Stigma and Sleep: Findings from a Pilot Study of Low-Income Housing Residents in New York City.

Ryan Richard Ruff; Jeannie Ng; Girardin Jean-Louis; Brian Elbel; Basile Chaix; Dustin T. Duncan

ABSTRACT The primary objective of this study was to investigate the relationship between neighborhood stigma and sleep in a sample of low-income housing residents in New York City. Data were derived from the NYC Low-Income Housing, Neighborhoods, and Health Study (N = 120). Adults living in low-income housing completed a survey consisting of measures of neighborhood stigma, sleep quality, and sleep duration. Neighborhood stigma and sleep were self-reported. Associations between neighborhood stigma and sleep health were analyzed using generalized linear models with cluster variance estimation. Multivariable models adjusted for age, gender, race/ethnicity, income, education, employment status, obesity, the census block percentage of non-Hispanic black residents, and the census block percentage median household income. Results indicate that a reported negative media perception of the neighborhood was negatively associated with sleep quality and duration (p < 0.01). However, additional research is needed to explore neighborhood stigma as it relates to sleep


Evidence-based Medicine | 2015

Sugar-sweetened beverage consumption is linked to global adult morbidity and mortality through diabetes mellitus, cardiovascular disease and adiposity-related cancers

Ryan Richard Ruff

Commentary on: Singh GM, Micha R, Khatibzadeh S, et al., Global Burden of Diseases Nutrition and Chronic Diseases Expert Group (NutriCoDE). Estimated global, regional, and national disease burdens related to sugar-sweetened beverage consumption in 2010. Circulation 2015;132:639–66[OpenUrl][1][Abstract/FREE Full Text][2]. Obesity and obesity-related non-communicable diseases are global health burdens associated with all-cause and cause-specific mortality, economic costs and impaired quality of life.1–3 Sugar-sweetened beverage (SSB) consumption has been linked with obesity and has long been thought to contribute to cardiometabolic diseases through increases in weight. Results from epidemiological studies show that SSB consumption forms a substantial component of total dietary intake and is associated with metabolic syndrome, high blood pressure and weight gain.4 ,5 While health impact models have estimated the global burden of cardiometabolic diseases, the role of … [1]: {openurl}?query=rft.jtitle%253DCirculation%26rft_id%253Dinfo%253Adoi%252F10.1161%252FCIRCULATIONAHA.114.010636%26rft_id%253Dinfo%253Apmid%252F26124185%26rft.genre%253Darticle%26rft_val_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Ajournal%26ctx_ver%253DZ39.88-2004%26url_ver%253DZ39.88-2004%26url_ctx_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Actx [2]: /lookup/ijlink?linkType=ABST&journalCode=circulationaha&resid=132/8/639&atom=%2Febmed%2F20%2F6%2F223.atom


JDR Clinical and Translational Research | 2018

School-based caries prevention, tooth decay, and the community environment

Ryan Richard Ruff; Richard Niederman

The school and community context can contribute to inequity in child oral health. Whether the school and community affect the effectiveness of school-based caries prevention is unknown. The association between the school and community environment and dental caries, as well as their moderating effects with school-based caries prevention, was assessed using multilevel mixed-effects regression. Data were derived from a 6-y prospective cohort study of children participating in a school-based caries prevention program. For the school and community, living in a dental-shortage area and the proportion of children receiving free or reduced lunch were significantly related to an increased risk of dental caries at baseline. Caries prevention was associated with a significant per-visit decrease in the risk of untreated caries, but the rate of total caries experience increased over time. Caries prevention was more effective in children who had prior dental care at baseline and in schools with a higher proportion of low socioeconomic status students. There was significant variation across schools in the baseline prevalence of dental caries and the effect of prevention over time, although effects were modest. The school and community environment have a direct impact on oral health and moderate the association between school-based caries prevention and dental caries. Knowledge Transfer Statement: School-based caries prevention can be an effective means to reduce oral health inequity by embedding dental care within schools. However, the socioeconomic makeup of schools and characteristics of the surrounding community can affect the impact of school-based care.


BMJ Open | 2018

Comparative effectiveness of treatments to prevent dental caries given to rural children in school-based settings: protocol for a cluster randomised controlled trial

Ryan Richard Ruff; Richard Niederman

Introduction Dental caries is the most prevalent childhood disease in the world and can lead to infection, pain and reduced quality of life. Multiple prevention agents are available to arrest and prevent dental caries; however, little is known of the comparative effectiveness of combined treatments when applied in pragmatic settings. The aim of the presented study is to compare the benefit of silver diamine fluoride and fluoride varnish versus fluoride varnish and glass ionomer therapeutic sealants in the arrest and prevention of dental caries. Methods and analysis A longitudinal, pragmatic, cluster randomised, single-blind, non-inferiority trial will be conducted in low-income rural children enrolled in public elementary schools in New Hampshire, USA, from 2018 to 2023. The primary objective is to compare the non-inferiority of alternative agents in the arrest and prevention of dental caries. The secondary objective is to compare cost-effectiveness of both interventions. Caries arrest will be evaluated after 2 years, and caries prevention will be assessed at the completion of the study. Data analysis will follow intent to treat, and statistical analyses will be conducted using a significance level of 0.05. Ethics and dissemination The standard of care for dental caries is office-based surgery, which presents multiple barriers to care including cost, fear and geographic isolation. The common intervention used in school-based caries prevention is dental sealants. The simplicity and affordability of silver diamine fluoride may be a viable alternative for the prevention of dental caries in high-risk children. Results can be used to inform policy for best practices in school-based oral healthcare. Trial registration NCT03448107. Pre-results.


Community Dentistry and Oral Epidemiology | 2017

Challenges in conducting multicentre, multidisciplinary, longitudinal studies in children with chronic conditions

Hillary L. Broder; Canice E. Crerand; Ryan Richard Ruff; Alexandre Peshansky; David B. Sarwer; Lacey Sischo

OBJECTIVES Conducting longitudinal, multicentre, multidisciplinary research for individuals with chronic conditions can be challenging. Despite careful planning, investigative teams must adapt to foreseen and unforeseen problems. Our objective is to identify challenges encountered and solutions sought in a recently completed observational, longitudinal study of youth with cleft lip and palate as well as their caregivers. METHODS Data for analysis were derived from a 6-year, multicentre, prospective, longitudinal study of youth with cleft conducted from 2009 to 2015 that examined oral health-related quality of life and other related clinical observations over time in youth who had cleft-related surgery compared to those who did not. Youth and their caregivers participating in this study were followed at one of six geographically diverse, multidisciplinary cleft treatment centres in the USA. RESULTS Establishing effective communication, ensuring protocol adherence, safeguarding data quality, recognizing and managing differences across sites, maximizing participant retention, dealing with study personnel turnover, and balancing/addressing clinical and research tasks were particularly exigent issues that arose over the course of the study. Attending to process, ongoing communication within and across sites, and investigator and clinician commitment and flexibility were required to achieve the stated aims of the research. CONCLUSION Studying children with cleft and their caregivers over time created both foreseen and unforeseen challenges. Solutions to these challenges are presented to aid in the design of future longitudinal research in individuals with chronic conditions.


The Cleft Palate-Craniofacial Journal | 2018

Surgical Care for School-Aged Youth With Cleft: Results From a Multicenter, Prospective Observational Study

Ryan Richard Ruff; Canice E. Crerand; Lacey Sischo; Alexandre Peshansky; David B. Sarwer; Richard E. Kirschner; Hillary L. Broder

Objective: To explore factors related to completion of surgery recommendations among children with cleft lip and palate (CLP) or cleft palate only (CPO). Design: Multicenter prospective longitudinal cohort study (2009-2015). Setting: Six cleft centers in the United States. Patients/Participants: A diverse sample of 1186 youth aged 7.5 to 18.5 years with CLP or CPO and a caregiver. Results: Data were collected from child–caregiver dyads at baseline and up to 3 follow-up visits. Of the 765 surgeries recommended during the study period, 83 were postponed and 597 were completed; this represents a completion rate of 78%. There were multiple reasons identified by patients for why the remaining 85 recommended surgeries were not completed. Children with nonprivate insurance were more likely to postpone recommended surgeries. Hispanic/Latino and Asian children had fewer surgeries compared to whites/Caucasians. Greater severity in rated speech differences was associated with more surgeries. Among participants who had completed all recommended surgeries, providers rated over 86% as having normal or mildly different facial appearance and 83% as having a normal or mild speech intelligibility rating. Similarly, caregivers rated 80% of facial appearance and 78% of speech positively. Approximately 25% of children had an additional surgical recommendation at the end of the study. Conclusions: The majority of surgical recommendations were completed with positive outcomes in facial appearance and speech intelligibility by provider and caregiver ratings. Several factors contributed to surgical recommendations not being completed and the results underscore the importance of examining socioeconomic and demographic disparities in surgical care.

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Alexandre Peshansky

Albert Einstein College of Medicine

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Canice E. Crerand

Nationwide Children's Hospital

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