Brittni N. Frederiksen

ORCID: 0000-0001-5547-202X
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Reproductive Health and Contraception
  • Global Maternal and Child Health
  • Diabetes and associated disorders
  • Maternal and Perinatal Health Interventions
  • Digestive system and related health
  • Reproductive Health and Technologies
  • Diabetes Management and Research
  • Healthcare Policy and Management
  • Adolescent Sexual and Reproductive Health
  • Maternal and fetal healthcare
  • Pancreatic function and diabetes
  • Vitamin D Research Studies
  • Pregnancy and preeclampsia studies
  • Reproductive tract infections research
  • Birth, Development, and Health
  • LGBTQ Health, Identity, and Policy
  • Primary Care and Health Outcomes
  • Diet, Metabolism, and Disease
  • Sexuality, Behavior, and Technology
  • Genetic Associations and Epidemiology
  • Male Reproductive Health Studies
  • RNA modifications and cancer
  • Intimate Partner and Family Violence
  • Female Genital Mutilation/Cutting Issues
  • Chemical Synthesis and Analysis

Kaiser Family Foundation
2019-2025

Berry (United States)
2020

Office of the Assistant Secretary for Health
2017-2019

Louisiana State Department of Health and Hospitals
2018

Louisiana State University
2018

University of Illinois Chicago
2018

Colorado School of Public Health
2012-2018

University of Colorado Anschutz Medical Campus
2012-2018

National Center for Chronic Disease Prevention and Health Promotion
2018

Centers for Disease Control and Prevention
2018

<h3>Importance</h3> The incidence of type 1 diabetes mellitus (T1DM) is increasing worldwide, with the most rapid increase among children younger than 5 years age. <h3>Objective</h3> To examine associations between perinatal and infant exposures, especially early diet, development T1DM. <h3>Design</h3> Diabetes Autoimmunity Study in Young (DAISY) a longitudinal, observational study. <h3>Setting</h3> Newborn screening for human leukocyte antigen (HLA) was done at St. Joseph's Hospital Denver,...

10.1001/jamapediatrics.2013.317 article EN JAMA Pediatrics 2013-07-24
Jill M. Norris Hye Seung Lee Brittni N. Frederiksen Iris Erlund Ulla Uusitalo and 95 more Jimin Yang Åke Lernmark Olli Simell Jorma Toppari Marian Rewers Anette‐G. Ziegler Jin‐Xiong She Suna Önengüt-Gümüşcü Wei‐Min Chen Stephen S. Rich Jouko Sundvall Beena Akolkar Jeffrey P. Krischer Suvi Μ. Virtanen William Hagopian Marian Rewers Kimberly Bautista Judith Baxter Ruth Bedoy Daniel Felipe-Morales Kimberly A. Driscoll Brigitte I. Frohnert Patricia Gesualdo Michelle Hoffman Rachel Karban Edwin Liu Jill M. Norris Adela Samper-Imaz Andrea K. Steck Kathleen Waugh Hali Wright Jorma Toppari Olli Simell Annika Adamsson Suvi Ahonen Heikki Hyöty Jorma Ilonen Sanna Jokipuu Tiina Kallio Leena Eklund Karlsson Miia Kähönen Mikael Knip Lea Kovanen Mirva Koreasalo Kalle Kurppa Tiina Latva-aho Maria Lönnrot Elina Mäntymäki Katja Multasuo Juha Mykkänen Tiina Niininen Sari Niinistö Mia Nyblom Petra Rajala Jenna Rautanen Anne Riikonen Mika Riikonen Jenni Rouhiainen Minna Romo Tuula Simell Ville Simell Maija Sjöberg Aino Stenius Maria Leppänen Sini Vainionpää Eeva Varjonen Riitta Veijola Suvi Μ. Virtanen Mari Vähä-Mäkilä Iris Erlund Katri Lindfors Jin-Xiong She Desmond Schatz Diane Hopkins Leigh Steed Jamie Thomas Janey Adams Katherine Silvis Michael J. Haller Melissa Gardiner Richard McIndoe Ashok Sharma Joshua Williams Gabriela Young Stephen W. Anderson Laura M. Jacobsen Anette G. Ziegler Andreas Beyerlein Ezio Bonifacio Michael Hummel Sandra Hummel Kristina Foterek Nicole Janz Mathilde Kersting Annette Knopff

We examined the association between plasma 25-hydroxyvitamin D [25(OH)D] concentration and islet autoimmunity (IA) whether vitamin gene polymorphisms modify effect of 25(OH)D on IA risk. followed 8,676 children at increased genetic risk type 1 diabetes six sites in U.S. Europe. defined as positivity for least one autoantibody (GADA, IAA, or IA-2A) two more visits. conducted a set sampled nested case-control study 376 case subjects up to 3 control per subject. was measured all samples prior...

10.2337/db17-0802 article EN Diabetes 2017-10-23

In the U.S. and globally, dominant metrics of contraceptive access focus on use certain methods do not address self-defined need for contraception; therefore, these fail to attend person-centeredness, a key component healthcare quality. This study addresses this gap by presenting new data from preferred method use, person-centered indicator. Additionally, we examine association between aspects use. We fielded nationally representative survey in English Spanish 2022, surveying non-sterile...

10.1016/j.lana.2023.100662 article EN cc-by-nc-nd The Lancet Regional Health - Americas 2024-01-21

Background Cow's milk intake has been inconsistently associated with islet autoimmunity (IA) and type 1 diabetes (T1D) development. Genetic environmental factors may modify the effect of cow's on IA T1D risk. Methods The Diabetes Autoimmunity Study in Young (DAISY) follows children at increased risk (presence autoantibodies to insulin, GAD65, or IA-2 twice succession) We examined 1835 DAISY data intake: 143 developed IA, 40 subsequently T1D. protein lactose were calculated from prospectively...

10.1111/pedi.12115 article EN Pediatric Diabetes 2014-01-20

Meta-analyses of observational studies have shown that women with a shorter interpregnancy interval (the time from delivery to start subsequent pregnancy) are more likely experience adverse pregnancy outcomes, such as preterm or small for gestational age birth, than who space their births further apart. However, the used inform these estimates methodological shortcomings.In this commentary, we summarise discussions an expert workgroup describing good practices design, analysis, and...

10.1111/ppe.12512 article EN cc-by-nc-nd Paediatric and Perinatal Epidemiology 2018-10-12

Vitamin D metabolism genes have been associated with type 1 diabetes (T1D) risk; however, these not investigated for association the preclinical phase of T1D, islet autoimmunity (IA). Studies vitamin may elucidate role in complex diseases.The objective study was to explore between seven gene single-nucleotide polymorphisms (SNPs) and risk IA progression T1D.The Diabetes Autoimmunity Study Young is a longitudinal, observational study.Newborn screening human leukocyte antigen, sibling...

10.1210/jc.2013-2256 article EN The Journal of Clinical Endocrinology & Metabolism 2013-08-26

The Person-Centered Contraceptive Care measure (PCCC) evaluates patient experience of contraceptive counseling, a construct not represented within United States surveillance metrics care. We explore use PCCC in national probability sample and examine predictors person-centered care.Among 2228 women from the 2017-2019 National Survey Family Growth who reported receiving care last year, we conducted univariate multivariable linear regression to identify associations between individual...

10.1363/psrh.12245 article EN Perspectives on Sexual and Reproductive Health 2023-09-01

Abstract Background Previous research has found self-efficacy is associated with reproductive health behaviors and outcomes. However, few studies have quantitatively examined the relationship between barriers accessing contraception self-efficacy. In addition, existing population-level metrics of contraceptive access tend to focus on method availability, uptake, use, rather than people’s self-defined needs preferences. This study uses person-centered assess experiencing a recent challenge or...

10.1186/s12978-025-02003-3 article EN cc-by Reproductive Health 2025-04-15

Abstract Background The World Health Organization ( WHO ) recommends that women wait at least 24 months after a livebirth before attempting subsequent pregnancy to reduce the risk of adverse maternal, perinatal, and infant health outcomes. However, applicability recommendations for in United States is unclear, as breast feeding, nutrition, maternal age first birth, total fertility rate differs substantially between low‐ middle‐resource countries upon which most evidence based. Methods To...

10.1111/ppe.12504 article EN cc-by-nc-nd Paediatric and Perinatal Epidemiology 2018-10-09

Previously, we examined 20 non-HLA SNPs for association with islet autoimmunity (IA) and/or progression to type 1 diabetes (T1D). Our objective was investigate fourteen additional T1D candidate stage- and age-related heterogeneity in the etiology of T1D. Of 1634 non-Hispanic white DAISY children genotyped, 132 developed IA (positive GAD, insulin, or IA-2 autoantibodies at two more consecutive visits); 50 positive progressed Cox regression used analyze risk children. Restricted cubic splines...

10.1155/2013/417657 article EN cc-by Clinical and Developmental Immunology 2013-01-01

To describe characteristics of U.S. contraceptive non-users to inform tailored access initiatives.We used National Survey Family Growth data from 2011 2017 identify compared other women ages 15-44 at risk for unintended pregnancy. We also examined reasons not using contraception by when expected their next birth. calculated unadjusted and adjusted prevalence ratios two definitions non-use: (1) non-use during the interview month, (2) a more refined definition based on use most recent month...

10.1016/j.conx.2020.100033 article EN cc-by-nc-nd Contraception X 2020-01-01
Coming Soon ...