Nathan Gotman
University of North Carolina at Chapel Hill
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Pediatrics | 2016
Nader Shaikh; Alejandro Hoberman; Ron Keren; Nathan Gotman; Steven G. Docimo; Ranjiv Mathews; Sonika Bhatnagar; Anastasia Ivanova; Tej K. Mattoo; Marva Moxey-Mims; Myra A. Carpenter; Hans G. Pohl; Saul P. Greenfield
BACKGROUND: Little generalizable information is available on the outcomes of children diagnosed with bladder and bowel dysfunction (BBD) after a urinary tract infection (UTI). Our objectives were to describe the clinical characteristics of children with BBD and to examine the effects of BBD on patient outcomes in children with and without vesicoureteral reflux (VUR). METHODS: We combined data from 2 longitudinal studies (Randomized Intervention for Children With Vesicoureteral Reflux and Careful Urinary Tract Infection Evaluation) in which children <6 years of age with a first or second UTI were followed for 2 years. We compared outcomes for children with and without BBD, children with and without VUR, and children with VUR randomly assigned to prophylaxis or placebo. The outcomes examined were incidence of recurrent UTIs, renal scarring, surgical intervention, resolution of VUR, and treatment failure. RESULTS: BBD was present at baseline in 54% of the 181 toilet-trained children included; 94% of children with BBD reported daytime wetting, withholding maneuvers, or constipation. In children not on antimicrobial prophylaxis, 51% of those with both BBD and VUR experienced recurrent UTIs, compared with 20% of those with VUR alone, 35% with BBD alone, and 32% with neither BBD nor VUR. BBD was not associated with any of the other outcomes investigated. CONCLUSIONS: Among toilet-trained children, those with both BBD and VUR are at higher risk of developing recurrent UTIs than children with isolated VUR or children with isolated BBD and, accordingly, exhibit the greatest benefit from antimicrobial prophylaxis.
Journal of Nervous and Mental Disease | 2015
Krista M. Perreira; Nathan Gotman; Carmen R. Isasi; William Arguelles; Sheila F. Castañeda; Martha L. Daviglus; Aida L. Giachello; Patricia Gonzalez; Frank J. Penedo; Hugo Salgado; Sylvia Wassertheil-Smoller
Abstract We examined the association between exposure to the U.S. and symptoms of poor mental health among adult Hispanic/Latinos (N = 15,004) overall and by Hispanic/Latino background. Using data from the Hispanic Community Health Study of Latinos (HCHS/SOL), we estimated logistic regressions to model the risk of moderate to severe symptoms of psychological distress, depression, and anxiety as a function of years in the U.S. and six key psychosocial risk and protective factors. In unadjusted models, increased time in the U.S. was associated with higher risk of poor mental health. After adjustment for just three key factors—perceived discrimination, perceived U.S. social standing, and the size of close social networks—differences in the odds of poor mental health by years in the U.S became insignificant for Hispanics/Latinos overall. However, analyses by Hispanic/Latino background revealed different patterns of association with exposure to the U.S. that could not be fully explained.
The Journal of Pediatrics | 2016
Nader Shaikh; Alejandro Hoberman; Ron Keren; Anastasia Ivanova; Nathan Gotman; Russell W. Chesney; Myra A. Carpenter; Marva Moxey-Mims; Ellen R. Wald
OBJECTIVE To determine which children with urinary tract infection are likely to have pathogens resistant to narrow-spectrum antimicrobials. STUDY DESIGN Children, 2-71 months of age (n = 769) enrolled in the Randomized Intervention for Children with Vesicoureteral Reflux or Careful Urinary Tract Infection Evaluation studies were included. We used logistic regression models to test the associations between demographic and clinical characteristics and resistance to narrow-spectrum antimicrobials. RESULTS Of the included patients, 91% were female and 76% had vesicoureteral reflux. The risk of resistance to narrow-spectrum antibiotics in uncircumcised males was approximately 3 times that of females (OR 3.1; 95% CI 1.4-6.7); in children with bladder bowel dysfunction, the risk was 2 times that of children with normal function (OR 2.2; 95% CI 1.2-4.1). Children who had received 1 course of antibiotics during the past 6 months also had higher odds of harboring resistant organisms (OR 1.6; 95% CI 1.1-2.3). Hispanic children had higher odds of harboring pathogens resistant to some narrow-spectrum antimicrobials. CONCLUSIONS Uncircumcised males, Hispanic children, children with bladder bowel dysfunction, and children who received 1 course of antibiotics in the past 6 months were more likely to have a urinary tract infection caused by pathogens resistant to 1 or more narrow-spectrum antimicrobials.
Pediatrics | 2016
Caleb P. Nelson; Alejandro Hoberman; Nader Shaikh; Ron Keren; Ranjiv Mathews; Saul P. Greenfield; Tej K. Mattoo; Nathan Gotman; Anastasia Ivanova; Marva Moxey-Mims; Myra A. Carpenter; Russell W. Chesney
BACKGROUND: The Randomized Intervention for Children with Vesicoureteral Reflux (RIVUR) trial found that recurrent urinary tract infections (rUTI) with resistant organisms were more common in the trimethoprim-sulfamethoxazole prophylaxis (TSP) arm. We describe factors associated with trimethoprim-sulfamethoxazole (TMP-SMX) resistance of rUTIs in RIVUR. METHODS: Children aged 2 to 71 months with first or second UTI (index UTI) and grade I to IV vesicoureteral reflux (VUR) were randomized to TSP or placebo and followed for 2 years. Factors associated with TMP-SMX–resistant rUTI were evaluated. RESULTS: Among 571 included children, 48% were <12 months old, 43% had grade II VUR, and 38% had grade III VUR. Recurrent UTI occurred in 34 of 278 children receiving TSP versus 67 of 293 children receiving placebo. Among those with rUTI, 76% (26/34) of subjects receiving TSP had TMP-SMX–resistant organisms versus 28% (19/67) of subjects receiving placebo (P < .001). The proportion of TMP-SMX–resistant rUTI decreased over time: in the TSP arm, 96% were resistant during the initial 6 months versus 38% resistant during the final 6 months; corresponding proportions for the placebo arm were 32% and 11%. Among children receiving TSP, 7 (13%) of 55 with TMP-SMX–resistant index UTI had rUTI, whereas 27 (12%) of 223 with TMP-SMX–susceptible index UTI had rUTI (adjusted hazard ratio 1.38, 95% confidence interval 0.54–3.56). Corresponding proportions in placebo arm were 17 (26%) of 65 and 50 (22%) of 228 (adjusted hazard ratio 1.33, 95% confidence interval 0.74–2.38). CONCLUSIONS: Although TMP-SMX resistance is more common among children treated with TSP versus placebo, resistance decreased over time. Among children treated with TSP, there was no significant difference in UTI recurrence between those with TMP-SMX–resistant index UTI versus TMP-SMX–susceptible UTI.
Journal of Ethnicity in Substance Abuse | 2016
India J. Ornelas; Gwen T. Lapham; Hugo Salgado; Emily C. Williams; Nathan Gotman; Veronica Y. Womack; Sonia M. Davis; Frank J. Penedo; Sylvia Smoller; Linda C. Gallo
ABSTRACT The study assessed whether overall perceived ethnic discrimination and four unique discrimination types were associated with binge drinking in participants from the Hispanic Community Health Study/Study of Latinos who also completed the Hispanic Community Health Study/Study of Latinos Sociocultural Ancillary Study (n = 5,313). In unadjusted analyses that were weighted for sampling strategy and design, each unit increase in discrimination type was associated with a 12–63% increase in odds of binge drinking; however, after adjusting for important demographic variables including age, sex, heritage group, language, and duration of U.S. residence, there was no longer an association between discrimination and binge drinking. Further research still needs to identify the salient factors that contribute to increased risk for binge drinking among Hispanics/Latinos.
Preventive Medicine | 2016
Rosenda Murillo; Kathryn J. Reid; Elva M. Arredondo; Jianwen Cai; Marc D. Gellman; Nathan Gotman; David X. Marquez; Frank J. Penedo; Alberto R. Ramos; Phyllis C. Zee; Martha L. Daviglus
We examined associations of mild and moderate to severe obstructive sleep apnea (OSA; apnea-hypopnea index ≥5 and ≥15, respectively) with recommended amounts of moderate-vigorous physical activity (MVPA) or vigorous physical activity (VPA) and by type of activity (i.e., recreational, transportation, and work activity). The Hispanic Community Health Study/Study of Latinos (HCHS/SOL), a multicenter population-based study, enrolled individuals from 2008 to 2011 from four U.S. metropolitan areas (Bronx, New York; Chicago, Illinois; Miami, Florida; San Diego, California). Participants in this study included 14,087 self-identified Hispanic/Latino ages 18 to 74years from the HCHS/SOL. Survey logistic regression analysis was used to compute odds ratios [OR] and 95% confidence intervals [CI], adjusting for sociodemographics, smoking status, and body mass index (BMI). Relative to being inactive, performing some MVPA (>0 to <150min/week) or meeting the recommended MVPA (≥150min/week) were associated with lower odds of mild OSA (ORs and 95% CIs 0.70 [0.61-0.82] and 0.76 [0.63-0.91], respectively), as well as moderate to severe OSA (ORs and 95% CIs 0.76 [0.62-0.93] and 0.76 [0.59-0.98], respectively). Associations of VPA with OSA were not significant. Engaging in medium or high levels of transportation activity was associated with lower odds of mild OSA (OR: 0.84, 95% CI: 0.74-0.96; OR: 0.64, 95% CI: 0.43-0.95, respectively). Performing some recreational MVPA was associated with lower likelihood of mild and moderate to severe OSA (OR: 0.82, 95% CI: 0.71-0.93; OR: 0.79, 95% CI: 0.64-0.97, respectively). Health promotion and OSA prevention efforts should encourage individuals to engage in at least some MVPA.
Pediatric Infectious Disease Journal | 2016
Nader Shaikh; Ellen R. Wald; Ron Keren; Nathan Gotman; Anastasia Ivanova; Myra A. Carpenter; Marva Moxey-Mims; Alejandro Hoberman
We aimed to determine which children are prone to non-Escherichia coli urinary tract infection (UTIs). We included 769 children with UTI. We found that circumcised males, Hispanic children, children without fever and children with grades 3 and 4 vesicoureteral reflux were more likely to have a UTI caused by organisms other than E. coli. This information may guide clinicians in their choice of antimicrobial therapy.
PLOS ONE | 2016
Richard H. Singer; Mark Stoutenberg; Marc D. Gellman; Edward Archer; Sonia M. Davis; Nathan Gotman; David X. Marquez; Christina Buelna; Yu Deng; H. Dean Hosgood; Ruth E. Zambrana
Purpose To examine the associations between overweight/obesity and occupation among Hispanics/Latinos, the largest minority population in the U.S. Methods This study included 7,409 employed individuals in the Hispanic Community Health Study/Study of Latinos (HCHS/SOL), a prospective study of Hispanic/Latino individuals aged 18–74 in four communities in the U.S. We independently examined the relationships between BMI, Occupational Activity (OA), and Total Hours Worked, quantified via self-reported hours worked per week and occupation-assigned Metabolic Equivalents (METs). Results More than three quarters of the participants were either overweight (39.3%) or obese (37.8%). Individuals with a primary occupation and those employed in a secondary occupation worked an average of 36.8 and 14.6 hrs/wk, respectively. The overall adjusted odds for being obese compared to normal weight were 3.2% (AOR = 1.03, 95% CI 1.01, 1.05) and 14.4% (AOR = 1.14 95% Cl 1.07, 1.23) greater for each 10 MET•hrs/wk unit of increased OA, and each 10-hrs/wk unit of Total Hours Worked, respectively. Conclusion This study presents the first findings on the association between OA with overweight/obesity among Hispanic/Latino individuals in the U.S. Increasing OA and Total Hours Worked per week were independently associated with increasing odds of overweight/obesity suggesting that the workplace is only one part of the overall energy expenditure dynamic. Our findings point to the need to emphasize engaging employed individuals in greater levels of PA outside of the work environment to impact overweight/obesity.
European Respiratory Journal | 2018
Marianne S. Muhlebach; J. Hatch; G.G. Einarsson; Stef J. McGrath; Deirdre F. Gilipin; Gillian M. Lavelle; Bojana Mirković; M. Murray; Paul McNally; Nathan Gotman; Sonia Davis Thomas; Matthew C. Wolfgang; Noel G. McElvaney; J. Stuart Elborn; Richard C. Boucher; Michael M. Tunney
Anaerobic and aerobic bacteria were quantitated in respiratory samples across three cystic fibrosis (CF) centres using extended culture methods. Subjects aged 1–69 years who were clinically stable provided sputum (n=200) or bronchoalveolar lavage (n=55). 18 anaerobic and 39 aerobic genera were cultured from 59% and 95% of samples, respectively; 16 out of 57 genera had a ≥5% prevalence across centres. Analyses of microbial communities using co-occurrence networks in sputum samples showed groupings of oral, including anaerobic, bacteria, whereas typical CF pathogens formed distinct entities. Pseudomonas was associated with worse nutrition and F508del genotype, whereas anaerobe prevalence was positively associated with pancreatic sufficiency, better nutrition and better lung function. A higher total anaerobe/total aerobe CFU ratio was associated with pancreatic sufficiency and better nutrition. Subjects grouped by factor analysis who had relative dominance of anaerobes over aerobes had milder disease compared with a Pseudomonas-dominated group with similar proportions of subjects that were homozygous for F508del. In summary, anaerobic bacteria occurred at an early age. In sputum-producing subjects anaerobic bacteria were associated with milder disease, suggesting that targeted eradication of anaerobes may not be warranted in sputum-producing CF subjects. Anaerobic bacteria are cultured across all ages, occur as communities and correlate with milder CF disease in adults http://ow.ly/7wQ430khMmE
Gastroenterology | 2017
Jeffrey S. Hyams; Sonia M. Davis; David R. Mack; Brendan Boyle; Anne M. Griffiths; Neal S. Leleiko; Cary G. Sauer; James Markowitz; Susan S. Baker; Joel R. Rosh; Robert N. Baldassano; Ashish S. Patel; Marian D. Pfefferkorn; Anthony Otley; Mel Heyman; Joshua D. Noe; Maria Oliva-Hemker; Paul A. Rufo; Jennifer A. Strople; David Ziring; Stephen L. Guthery; Boris Sudel; Keith J. Benkov; Prateek Wali; Dedrick E. Moulton; Jonathan Evans; Michael D. Kappelman; Krista Spada; Alison Marquis; Nathan Gotman
Jeffrey S. Hyams , Sonia Davis, David R. Mack , Brendan Boyle, Anne M. Griffiths, Neal S. Leleiko, Cary G.Sauer, David J. Keljo, James Markowitz, Susan Baker, Joel Rosh, Robert N. Baldassano, Ashish Patel, Marian Pfefferkorn, Anthony Otley, Melvin Heyman, Joshua Noe, Maria OlivaHemker, Paul Rufo, Jennifer Strople, David Ziring, Stephen Guthery, Boris Sudel, Keith Benkov, Prateek Wali, Dedrick Moulton, Jonathan Evans, Michael Kappelman , Alison Marquis, Francisco A. Sylvester, Margaret H. Collins, Suresh Venkateswaran, Marla Dubinsky, Krista L. Spada, Ashley Britt, Bradley Saul, Nathan Gotman, Jose Serrano, Subra Kugathasan, Thomas Walters, Lee A. Denson