Andrew Schaffner

ORCID: 0000-0002-7413-0153
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About
Contact & Profiles
Research Areas
  • Gestational Diabetes Research and Management
  • Bariatric Surgery and Outcomes
  • Obesity, Physical Activity, Diet
  • Obesity and Health Practices
  • Child Nutrition and Water Access
  • Birth, Development, and Health
  • Breastfeeding Practices and Influences
  • Food Security and Health in Diverse Populations
  • Stochastic processes and statistical mechanics
  • Eating Disorders and Behaviors
  • Pregnancy and preeclampsia studies
  • Random Matrices and Applications
  • Sports Performance and Training
  • Effects and risks of endocrine disrupting chemicals
  • Statistics Education and Methodologies
  • Maternal Mental Health During Pregnancy and Postpartum
  • Child Nutrition and Feeding Issues
  • Advanced Combinatorial Mathematics
  • Iron Metabolism and Disorders
  • Health Systems, Economic Evaluations, Quality of Life
  • Markov Chains and Monte Carlo Methods
  • Clinical Nutrition and Gastroenterology
  • Mobile Health and mHealth Applications
  • Nutrition and Health in Aging
  • Folate and B Vitamins Research

California Polytechnic State University
2013-2023

National University of Singapore
2023

Health and Human Development (2HD) Research Network
2023

University of North Carolina at Chapel Hill
2017

Miriam Hospital
2011-2013

Brown University
2011-2013

Women & Infants Hospital of Rhode Island
2011-2013

University of California, Berkeley
2011-2013

Berkeley Public Health Division
2011-2013

Providence College
2011

<h3>Importance</h3> Postpartum weight retention increases lifetime risk of obesity and related morbidity. Few effective interventions exist for multicultural, low-income women. <h3>Objective</h3> To test whether an internet-based loss program in addition to the Special Supplemental Nutrition Program Women, Infants, Children (WIC program) postpartum women could produce greater than WIC alone over 12 months. <h3>Design, Setting, Participants</h3> A 12-month, cluster randomized, assessor-blind,...

10.1001/jama.2017.7119 article EN JAMA 2017-06-20

Abstract Objective The purpose of this study was to prospectively examine the effect state stay‐at‐home mandates on weight US adults by BMI over 3 months during COVID‐19. Methods completed an online questionnaire containing demographics, weight, physical activity, sedentary time, fruit/vegetable intake, depressive symptoms, stress, and sleep at baseline (May 2020) after (August 2020). Results Participants gained 0.6 kg (76.7‐77.3 kg, p = 0.002). A total 26% those with obesity &gt; 2 compared...

10.1002/oby.23293 article EN Obesity 2021-09-01

The purpose of this study was to investigate receipt gestational weight gain advice in prenatal care and ideal expected outcomes for normal overweight/obese women. This a cross-sectional (n = 203) 198) women early (<16 weeks) pregnancy. Less than half participants (41.7%) reported receiving from practitioner. In multivariate models, pregravid status not significantly related advice. However, with lower income (odds ratio [OR] 0.31, 95% confidence interval [CI] 0.13-0.77, p 0.01), younger age...

10.1089/jwh.2010.2316 article EN Journal of Women s Health 2011-03-18

This study investigated the effects of maternal changes during pregnancy in diet, exercise, and psychosocial factors on offspring weight parameters at birth 6 months. In overweight/obese (OW/OB;<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>n</mml:mi><mml:mo>=</mml:mo><mml:mn>132</mml:mn></mml:math>) mothers, greater % kcal from sweets early was strongest, independent predictor higher for age (WFA) (beta<mml:math...

10.1155/2011/985139 article EN cc-by Experimental Diabetes Research 2011-01-01

High postpartum weight retention is a strong independent risk factor for lifetime obesity, cardiovascular disease, and type 2 diabetes in women. Interventions to promote loss have met with some success but been limited by high attrition. Internet-based treatment has the potential overcome this barrier reduce retention, no study evaluated effects of an internet-based program prevent women.Fit Moms/Mamás Activas targets recruitment 12 Women, Infants Children (WIC) Supplemental Nutrition...

10.1186/s13063-015-0573-9 article EN cc-by Trials 2015-02-24

Low-income Hispanic women experience elevated rates of high postpartum weight retention (PPWR), which is an independent risk factor for lifetime obesity. Sociocultural factors might play important role among women; however, very few studies have examined this association.

10.1089/jwh.2016.6154 article EN Journal of Women s Health 2017-08-17

Gestational diabetes mellitus (GDM) is associated with several maternal complications in pregnancy, including preeclampsia, preterm labor, need for induction of and cesarean delivery as well increased long-term risks type 2 diabetes, metabolic syndrome, cardiovascular disease. Intrauterine exposure to GDM raises the risk offspring well, stillbirth, macrosomia, birth trauma, One strongest factors occurrence a prior pregnancy. Preliminary data from epidemiologic bariatric surgery studies...

10.1186/s13063-021-05204-w article EN cc-by Trials 2021-04-07

Gestational Diabetes Mellitus (GDM) results in complications affecting both mothers and their offspring. Metabolomic analysis across pregnancy provides an opportunity to better understand GDM pathophysiology. The objective was conduct a metabolomics of first third trimester plasma samples identify metabolic differences associated with development. Forty pregnant women overweight/obesity from multisite clinical trial lifestyle intervention were included. Participants who developed (n = 20;...

10.1021/acs.jproteome.2c00430 article EN cc-by Journal of Proteome Research 2023-05-02

Previous studies have shown that women higher concentrations of the endocrine disruptor bisphenol A (BPA), but an intervention to reduce BPA is lacking in women. To test hypothesis would decrease urinary over 3 weeks, 24 (mean ± standard deviation [SD]; 22.1 2.8 kg/m2 body mass index, 20.9 1.5 years) were randomly assigned or control.The included weekly face-to-face meetings exposures from food, cosmetics, and other packaged products. Women provided with BPA-free hygiene, glass food/water...

10.1089/jwh.2016.5746 article EN Journal of Women s Health 2016-10-11

Consider a stationary Markov chain with state space consisting of the ξ -letter alphabet set Λ= { 1 , 2 ···, } . We study variables M=M ( n, k ) and N=N defined, respectively, as number overlapping non-overlapping occurrences fixed periodic word, use Stein–Chen method to obtain compound Poisson approximations for their distribution.

10.2307/3215201 article EN Journal of Applied Probability 1995-12-01

In low-income countries there are few data on hospital malnutrition. Reduced food intake combined with nutrient-poor foods served in hospitals contribute to nutritional risk. This study investigated whether reported dietary and disease state of hospitalized adults critical care units was related malnutrition determined by mid-upper arm circumference (MUAC). Adult in-patients (n = 126) tuberculosis, burn, oncology, intensive two public tertiary Malawi were screened for status using MUAC a...

10.3390/nu13041170 article EN Nutrients 2021-04-01

Objective This randomized trial tested whether a behavioral intervention with meal replacements in pregnancy could increase the proportion of women who returned to prepregnancy weight and reduce postpartum retention by 12 months after delivery. Methods Women ( N = 264; 13.7 weeks’ gestation) overweight or obesity were randomly assigned usual care intervention. The reduced excess gestational gain was discontinued at At follow‐up, 83.7% completed 12‐month assessment. Results Compared care,...

10.1002/oby.22361 article EN Obesity 2018-11-13

Let X 1 , 2 · ··, n be a sequence of random variables taking values in the ξ -letter alphabet . We consider number N = ( n, k ) non-overlapping occurrences fixed word under (a) i.i.d. and (b) stationary Markovian hypotheses on use Stein–Chen method to obtain Poisson approximations for same. In each case, results couplings from Barbour et al. (1992) are used show that total variation distance between distribution an appropriate variable is order (roughly) O kS ), where S denotes probability...

10.2307/1427656 article EN Advances in Applied Probability 1993-06-01

Micronutrient deficiencies during pregnancy are common in Africa and can cause adverse outcomes. The objective was to measure micronutrient status change moderately malnourished pregnant Malawian women randomized one of three nutritional interventions. Serum vitamin B12, 25-hydroxyvitamin D, folate, retinol, ferritin, zinc, albumin C-reactive protein were measured with MUAC ≥20.6 cm ≤23.0 at enrollment (n = 343) after 10 weeks 229) receiving: (1) ready-to-use supplementary food (RUSF); (2)...

10.3390/nu10070879 article EN Nutrients 2018-07-07

To explore longitudinal associations between bottle-feeding and maternal encouragement of infant bottle-emptying during the first 6 months infancy.Mothers completed questionnaires third trimester pregnancy, then monthly postpartum. Questionnaires assessed family demographics, weight status, feeding patterns bottle-emptying.The Infant Feeding Practices Study 2, conducted by US Centers for Disease Control Prevention Food Drug Administration.Mothers (n 1776).Repeated-measures regression was...

10.1017/s1368980017002166 article EN Public Health Nutrition 2017-09-12
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