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

Broder, Hillary L; Crerand, Canice E; Ruff, Ryan R; Peshansky, Alexandre; Sarwer, David B; Sischo, Lacey
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.
PMCID:5498240
PMID: 28220515
ISSN: 1600-0528
CID: 2460062

Topical silver diamine fluoride for managing dental caries in children and adults

Rajendra, A; Veitz-Keenan, A; Oliveira, B H; Ruff, R R; Wong, M C M; Innes, N P T; Radford, J; Seifo, N; Niederman, R
This is a protocol for a Cochrane Review (Intervention). The objectives are as follows: To assess the effects of silver diamine fluoride in arresting and preventing caries in deciduous and permanent teeth (coronal and root caries) compared to any other intervention including placebo or no treatment
EMBASE:617292179
ISSN: 1469-493x
CID: 2646922

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

Ruff, Ryan Richard; Sischo, Lacey; Broder, Hillary L
BACKGROUND: The 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. METHODS: Data 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. RESULTS: Based 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. CONCLUSION: The minimally important difference of the Child Oral Health Impact Profile is recommended for interpreting clinically meaningful change in patients with cleft lip/palate.
PMCID:5048688
PMID: 27716239
ISSN: 1477-7525
CID: 2274432

Resiliency and socioemotional functioning in youth receiving surgery for orofacial anomalies

Ruff, Ryan Richard; Sischo, Lacey; Broder, Hillary
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 (beta = -1.48, 95% CI = -2.91, -0.05) and mastery (beta = -1.32, 95% CI = -2.49, -0.15) scores, although overall scores appeared to increase over time. Surgery was not related to anxiety (beta = -0.15, 95% CI = -1.08, 0.79), depression (beta = 0.18, 95% CI = -0.65, 1.01), and self-concept (beta = -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.
PMCID:5708123
PMID: 26924625
ISSN: 1600-0528
CID: 2009652

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

Duncan, Dustin T; Ruff, Ryan R; Chaix, Basile; Regan, Seann D; Williams, James H; Ravenell, Joseph; Bragg, Marie A; Ogedegbe, Gbenga; Elbel, Brian
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.
PMID: 27245795
ISSN: 1970-7096
CID: 2124792

Small Convenience Stores and the Local Food Environment: An Analysis of Resident Shopping Behavior Using Multilevel Modeling

Ruff, Ryan Richard; Akhund, Ali; Adjoian, Tamar
Purpose . Local food environments can influence the diet and health of individuals through food availability, proximity to retail stores, pricing, and promotion. This study focused on how small convenience stores, known in New York City as bodegas, influence resident shopping behavior and the food environment. Design . Using a cross-sectional design, 171 bodegas and 2118 shoppers were sampled. Setting . Small convenience stores in New York City. Subjects . Any bodega shopper aged 18+ who purchased food or beverage from a participating store. Measures . Data collection consisted of a store assessment, a health and behavior survey given to exiting customers, and a bag check that recorded product information for all customer purchases. Analysis . Descriptive statistics were generated for bodega store characteristics, shopper demographics, and purchase behavior. Multilevel models were used to assess the influence of product availability, placement, and advertising on consumer purchases of sugar-sweetened beverages (SSBs), water, and fruits and vegetables. Results . Seventy-one percent of participants reported shopping at bodegas five or more times per week, and 35% reported purchasing all or most of their monthly food allotment at bodegas. Model results indicated that lower amounts of available fresh produce were significantly and independently associated with a higher likelihood of SSB purchases. A second, stratified multilevel model showed that the likelihood of purchasing an SSB increased with decreasing varieties of produce when produce was located at the front of the store. No significant effects were found for water placement and beverage advertising. Conclusions . Small convenience stores in New York City are an easily accessible source of foods and beverages. Bodegas may be suitable for interventions designed to improve food choice and diet.
PMID: 25806566
ISSN: 0890-1171
CID: 1514092

The impacts of retention, expenditures, and class size on primary school completion in Sub-Saharan Africa: A cross-national analysis

Ruff, Ryan
Education in Sub-Saharan Africa is increasingly viewed as a means of emancipation, acting as a transformative project for social mobility. Developing nations have subsequently pursued policies designed to increase access to education and improve upon student outcomes, such as universal or free primary education. In this study, direct and indirect precursors to primary school completion in Sub-Saharan Africa are considered using cross-national data collected by the UNESCO Institute for Statistics. Path analysis results show that imbalanced pupil-teacher ratios and high student retention rates are negatively associated with primary school completion. Additionally, the positive relationship between expenditure increase and completion rates is mediated by a negative contribution to pupil-teacher ratios. Results are compared with existing production function research on varied educational inputs and student success
ORIGINAL:0012595
ISSN: 1555-5062
CID: 3116882

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

Ruff, Ryan Richard
PMID: 26442567
ISSN: 1473-6810
CID: 1794862

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

Ruff, Ryan Richard; Zhen, Chen
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.
PMID: 25659449
ISSN: 1047-2797
CID: 1461782

Calorie Intake, Sugar-Sweetened Beverage Consumption, and Obesity Among New York City Adults: Findings from a 2013 Population Study Using Dietary Recalls

Ruff, Ryan Richard; Akhund, Ali; Adjoian, Tamar; Kansagra, Susan M
Obesity and overweight-obesity have contributed to increases in early mortality and noncommunicable disease incidence. The consumption of sugar-sweetened beverages (SSBs) is linked to obesity, weight gain, and metabolic syndrome. To further explore this relationship in a large urban environment, we assessed disparities in calorie intake between SSB and non-SSB consumers and determine the association between varying SSB consumption, obesity, and overweight-obesity using data from a 2013 representative dietary survey conducted in New York City. Results show that adult SSB drinkers consume 193 kcal/day from SSBs, approximately 10 % of daily caloric needs. Compared to non-SSB drinkers, those who consume SSBs have a 572 kcal greater daily intake. Total calorie differences are due to greater SSB calorie and food calorie consumption. Among SSB consumers, each 10-oz increase in SSB consumption is associated with a greater likelihood of obesity (OR 1.62, 95 % CI 1.05, 2.05) and overweight-obesity (OR 2.23, 95 % CI 1.31, 3.80). Additionally, each 10-kcal SSB increase is related to obesity (OR 1.04, 95 % CI 1.01, 1.08) and overweight-obesity (OR 1.07, 95 % CI 1.02, 1.11).
PMID: 24671367
ISSN: 0094-5145
CID: 936312