Maternal mental health and offspring brain development: An umbrella review of prenatal interventions
The idea that risk for psychiatric disorders may be transmitted intergenerationally via prenatal programming places interest in the prenatal period as a critical moment during which intervention efforts may have a strong impact, yet studies testing whether prenatal interventions also…
Neighborhood privilege tied to timing of girls’ puberty
A novel smartphone application for the informal caregivers of cancer patients: Usability study
Informal caregivers are a critical source of support for cancer patients. However, their perspectives are not routinely collected, despite health impacts related to the burden of caregiving. We created the TOGETHERCare smartphone application (app) to collect observer-reported outcomes regarding the…
Neighborhood Racial and Economic Privilege and Timing of Pubertal Onset in Girls
Early puberty is associated with adverse health outcomes over the life course, and Black and Hispanic girls experience puberty earlier than girls of other racial/ethnic backgrounds. Neighborhood racial and economic privilege may contribute to these disparities by conferring differential exposure…
Associations between childhood obesity and pubertal timing stratified by sex and race/ethnicity
Earlier puberty has been associated with numerous adverse mental, emotional, and physical health outcomes. Obesity is a known risk factor for earlier puberty in girls, but research with boys has yielded inconsistent findings. We examined sex- and race/ethnicity-specific associations between…
Childhood weight tied to timing of puberty
Associations between infant growth and pubertal onset timing in a multiethnic prospective cohort of girls
Early puberty increases risk of adverse health conditions throughout the life course. US girls are experiencing earlier puberty without clear reasons. Studies suggest early life factors, such as infant growth, may influence pubertal timing. We assessed the associations between infant…
Raising awareness about early puberty
mHealth Mindfulness Intervention for Pregnant Black and Latina Women at Risk of Postpartum Depression
This randomized controlled trial of an mHealth mindfulness intervention designed for Black and Latinx pregnant women at risk of developing postpartum depression will compare outcomes (depression, stress, sleep) of participants in the intervention with those in the control arm.
Engagement in perinatal depression treatment: a qualitative study of barriers across and within racial/ethnic groups
To better understand previously observed racial/ethnic disparities in perinatal depression treatment rates we examined care engagement factors across and within race/ethnicity. Obstetric patients and women's health clinician experts from a large healthcare system participated in this qualitative study. We conducted focus…
Girls’ Pubertal Timing and Tempo and Mental Health: A Longitudinal Examination in an Ethnically Diverse Sample
Earlier timing and faster tempo of puberty have been linked to adolescents' poor mental health. Previous research rarely adjusted for childhood mental health, did not use physical examination to assess puberty, and excluded Latinas and Asian Americans. This study addressed…
mHealth Mindfulness Intervention for Women with Moderate-to-Moderately-Severe Antenatal Depressive Symptoms: a Pilot Study Within an Integrated Health Care System
Traditional mindfulness-based interventions have been shown to reduce depression symptoms in pregnant women, although in-person classes may pose significant accessibility barriers, particularly during the COVID-19 pandemic. Mobile technology offers greater convenience, but little is known regarding the efficacy of self-paced,…
Being Present 2.0: Online Mindfulness-Based Program for Metastatic Gastrointestinal Cancer Patients and Caregivers
A metastatic cancer diagnosis is associated with high levels of distress in patients and caregivers, which may be alleviated by mindfulness interventions. Research on scalable, tailored, online mindfulness training programs is needed. We sought to test the feasibility and acceptability…
A Mobile Health Mindfulness Intervention for Women With Moderate to Moderately Severe Postpartum Depressive Symptoms: Feasibility Study
Approximately 20% of women suffer from postpartum depression (PPD). Due to barriers such as limited access to care, half of the women with PPD do not receive treatment. Therefore, it is critical to identify effective and scalable interventions. Traditional mindfulness…
Girls who do not live with both parents more likely to start puberty early
Early life household intactness and timing of pubertal onset in girls: a prospective cohort study
Girls who experience early-life familial stress may have heightened risk of early puberty, which has adverse implications for adolescent and adult health. We assessed the association between household intactness and pubertal onset using a racially/ethnically diverse cohort of girls from…
Pilot pragmatic randomized trial of mHealth mindfulness-based intervention for advanced cancer patients and their informal caregivers
Assess the feasibility of conducting a cluster randomized trial (RCT) comparing technology-delivered mindfulness-based intervention (MBI) programs against a waitlist control arm targeting advanced cancer patients and their informal caregivers. Two-arm cluster RCT within Kaiser Permanente Northern California (KPNC). We recruited…
Childhood Adversity and Pubertal Development Among Puerto Rican Boys and Girls
Evidence stemming largely from retrospective studies suggests that childhood adversity (CA) is associated with earlier age at menarche, a marker of pubertal timing, among girls. Little is known about associations with pubertal tempo among boys or racial/ethnic minorities. We examined…
Sex and Race/Ethnicity-specific Multilevel Factors Influencing Pubertal Trajectories: A Population-based Study
The goal of this project is to describe the normative distributions of pubertal development among boys and girls by race/ethnicity and to investigate early-life risk factors affecting pubertal onset and tempo (velocity of transition between onset and maturation). We will…
Breastfeeding and timing of pubertal onset in girls: a multiethnic population-based prospective cohort study
Early puberty is associated with higher risk of adverse health and behavioral outcomes throughout adolescence and adulthood. US girls are experiencing earlier puberty with substantial racial/ethnic differences. We examined the association between breastfeeding and pubertal timing to identify modifiable risk…
Maternal Gestational Weight Gain, Obesity, and the Timing of Pubertal Onset in Daughters
Early puberty is associated with adverse health outcomes, but little is known regarding early life determinants influencing pubertal timing. We examined the associations between maternal gestational weight gain (GWG) and the timing of the onset of breast development (thelarche) and…
A Randomized Controlled Trial of mHealth Mindfulness Intervention for Cancer Patients and Informal Cancer Caregivers: A Feasibility Study Within an Integrated Health Care Delivery System
To assess feasibility and preliminary efficacy of a mobile/online-based (mHealth) mindfulness intervention for cancer patients and their caregivers to reduce distress and improve quality of life (QoL). Two-arm randomized controlled trial within Kaiser Permanente Northern California targeting cancer patients who…
Associations Between Maternal Obesity and Pregnancy Hyperglycemia and Timing of Pubertal Onset in Adolescent Girls: A Population-Based Study
Early puberty is associated with adverse health outcomes. We investigated whether in utero exposure to maternal obesity is associated with daughters' pubertal timing using 15,267 racially/ethnically diverse Kaiser Permanente Northern California members aged 6-11 years with pediatrician-assessed Tanner staging (2003-2017).…
mHealth Mindfulness Intervention for Women with Perinatal Depression: A Feasibility Study
The primary goal of this project is to assess the feasibility of conducting a mobile-health mindfulness intervention (mHealth) study among pregnant and postpartum women with depressive symptoms. Perinatal depression has numerous adverse health consequences, including preterm delivery, negative maternal-infant interaction,…
Being Present: A single-arm feasibility study of audio-based mindfulness meditation for colorectal cancer patients and caregivers
A metastatic cancer diagnosis is associated with high levels of distress in patients and caregivers. Mindfulness interventions can reduce distress and improve quality of life in cancer patients. However, standard mindfulness training relies on in-person instruction, which is often not…
A Pilot Pragmatic Trial of mHealth Mindfulness Intervention to Improve Quality of Life Among Metastatic Cancer Patients and Their Caregivers
Screening for psychosocial distress is an accreditation requirement of the Commission on Cancer, underscoring the importance of addressing cancer patients’ psychosocial needs. Mindfulness-based training is one strategy that has been shown to help cancer patients reduce distress and improve quality…
Being Present: A Feasibility Study of Audio-Based Mindfulness Meditation Intervention for Metastatic Cancer Patients and Caregiver
Based on our previous pilot study of CD-based mindfulness intervention for cancer patients, we propose to develop a mobile application and pilot test its acceptability among cancer patients and their caregivers in order to reduce stress and to improve quality…
Mobile App-Based Mindfulness Pilot Study for Cancer Patients and Caregivers
This pilot randomized trial will test the feasibility of a mobile-app based mindfulness intervention for cancer patients and their caregivers in order to reduce stress, and to improve quality of life and patient-provider communication.
Early Life Determinants of Accelerated Pubertal Development in Adolescent Girls
The goal of this research is to identify early life factors which influence the timing of pubertal development among adolescent girls. The first study utilizes data from the Cohort Study of Young Girls Nutrition, Environment and Transitions (CYGNET), which has…
Perceived psychosocial stress and gestational weight gain among women with gestational diabetes
Growing evidence links perceived stress-a potentially modifiable psychosocial risk factor-with health behaviors and obesity. Yet little is known about the relationship between stress during pregnancy and gestational weight gain, particularly among women with pregnancy complications. We conducted a cross-sectional analysis…
Associations Between Maternal Pregravid Obesity and Gestational Diabetes and the Timing of Pubarche in Daughters
We investigated whether in utero exposure to maternal pregravid obesity and/or gestational diabetes mellitus (GDM) was associated with early puberty in girls. We used data from a longitudinal study of 421 mother-daughter pairs enrolled in an integrated health services organization,…
Lifestyle behaviors and ethnic identity among diverse women at high risk for type 2 diabetes
Diet and physical activity lifestyle behaviors are modifiable risk factors for type 2 diabetes and are shaped by culture, potentially influencing diabetes health disparities. We examined whether ethnic identity-the strength of attachment to one's ethnic group, and a long-standing focus…
Maternal Hyperglycemia During Pregnancy Predicts Adiposity of the Offspring
To investigate associations between maternal pregnancy hyperglycemia, gestational diabetes mellitus (GDM), and offspring adiposity. We evaluated these associations in a longitudinal study of 421 mother-daughter pairs at Kaiser Permanente Northern California. Maternal pregnancy glucose values were obtained from maternal medical…
Prevention of Vertical Transmission of Hepatitis B: An Observational Study
For mothers with chronic hepatitis B virus (HBV) infection, the Centers for Disease Control and Prevention recommends immunoprophylaxis to decrease perinatal transmission. However, its effectiveness and risk factors for failure have not been well-studied in community practice. To investigate the…
Dietary guideline adherence for gastroesophageal reflux disease
Gastroesophageal reflux disease (GERD) is the most common gastrointestinal disease, and the cost of health care and lost productivity due to GERD is extremely high. Recently described side effects of long-term acid suppression have increased the interest in nonpharmacologic methods…
Sex-specific associations between body mass index, waist circumference and the risk of Barrett’s oesophagus: a pooled analysis from the international BEACON consortium
Barrett's oesophagus is a precursor lesion of oesophageal adenocarcinoma, a cancer that, in the USA, has increased in incidence over 600% during the past 40 years. Barrett's oesophagus and oesophageal adenocarcinoma are much more common among men than among women;…
Dietary fiber and the risk of precancerous lesions and cancer of the esophagus: a systematic review and meta-analysis
Dietary fiber has several anticarcinogenic effects and is thought to be protective against esophageal cancer. The aim of this systematic review was to quantify the association between dietary fiber and the risk of esophageal cancer by investigating histological subtypes of…
Yoga for heart failure patients: a feasibility pilot study with a multiethnic population
BACKGROUND: Congestive heart failure (CHF) is highly prevalent and the most costly cardiovascular illness in the United States. Yoga is known to be effective in lowering stress, lessening depression, and increasing physical fitness and may be used as an adjuvant…
Dietary factors and the risks of oesophageal adenocarcinoma and Barrett’s oesophagus
Incidence rates for oesophageal adenocarcinoma have increased by over 500% during the past few decades without clear reasons. Gastro-oesophageal reflux disease, obesity and smoking have been identified as risk factors, although the demographic distribution of these risk factors is not…
Proton pump inhibitors and histamine-2 receptor antagonists are associated with hip fractures among at-risk patients
BACKGROUND & AIMS: Drugs that inhibit gastric acid might increase the risk of hip fracture. However, little long-term exposure data exist and no large studies have been conducted in the United States. METHODS: We conducted a case-control study using data…
Diagnosing Barrett’s esophagus: reliability of clinical and pathologic diagnoses
BACKGROUND: The accuracy of a Barrett's esophagus diagnosis is not well studied. OBJECTIVE: Our purpose was to evaluate the accuracy of a clinical Barrett's esophagus diagnosis and the reproducibility of an esophageal intestinal metaplasia diagnosis. METHODS: All patients with a…
Cigarette smoking and the risk of Barrett’s esophagus
INTRODUCTION: We examined the association between smoking and the risk of Barrett's esophagus (BE), a metaplastic precursor to esophageal adenocarcinoma. METHODS: We conducted a case-control study within the Kaiser Permanente Northern California population. Patients with a new diagnosis of BE…
Alcohol types and sociodemographic characteristics as risk factors for Barrett’s esophagus
BACKGROUND & AIMS: Little is known about the effects of alcohol use and sociodemographics on the risk of Barrett's esophagus, a precursor to esophageal adenocarcinoma. We evaluated the association between alcohol use, alcohol type, sociodemographic profiles, other lifestyle factors, and…
Race, ethnicity, sex and temporal differences in Barrett’s oesophagus diagnosis: a large community-based study, 1994-2006
OBJECTIVE: To evaluate the demographics and incidence of Barrett's oesophagus diagnosis using community-based data. DESIGN: Observational study. SETTING: Kaiser Permanente, Northern California healthcare membership, 1994-2006. PATIENTS: Members with an electronic diagnosis of Barrett's oesophagus. MAIN OUTCOME MEASURES: Incidence and prevalence…
Effects of dietary fiber, fats, and meat intakes on the risk of Barrett’s esophagus
Animal and human models suggest associations between fat intake, fiber intake, and the risk of esophageal adenocarcinoma. We evaluated whether these factors may act early in the carcinogenic pathway as a risk factor for Barrett's esophagus, a potentially premalignant precursor…
Hemochromatosis gene status as a risk factor for Barrett’s esophagus
Conditions causing high iron levels, such as hemochromatosis, are proposed risk factors for esophageal adenocarcinoma. Although this hypothesis is supported by animal models, no human data currently exist. We conducted a case-control study of persons with a new Barrett's esophagus…
Iron intake and body iron stores as risk factors for Barrett’s esophagus: a community-based study
OBJECTIVE: High iron stores are a proposed modifiable risk factor for esophageal adenocarcinoma, but minimal human data exist. We evaluated whether iron intake and iron stores were associated with Barrett's esophagus, a metaplastic change that is a strong risk factor…
Helicobacter pylori and gastroesophageal reflux disease: a case-control study
BACKGROUND: Gastric colonization with Helicobacter pylori is a proposed protective factor against gastroesophageal reflux disease (GERD), but little population-based data exist and other data conflict. METHODS: We conducted a case-control study within the membership of a large integrated health-care system…
Dietary antioxidants, fruits, and vegetables and the risk of Barrett’s esophagus
OBJECTIVE: The present study evaluated the associations among antioxidants, fruit and vegetable intake, and the risk of Barrett's esophagus (BE), a potential precursor to esophageal adenocarcinoma. METHODS: We conducted a case-control study within the Kaiser Permanente Northern California population. Incident…
Helicobacter pylori infection and the risk of Barrett’s oesophagus: a community-based study
OBJECTIVE: Gastric colonisation with the Helicobacter pylori bacterium is a proposed protective factor against oesophageal adenocarcinoma, but its point of action is unknown. Its associations with Barrett's oesophagus, a metaplastic change that is a probable early event in the carcinogenesis…
Dietary patterns and the risk of Barrett’s esophagus
The objective of this study was to examine the associations between dietary patterns and the risk of Barrett's esophagus, a precursor to esophageal adenocarcinoma. The authors conducted a case-control study within the Kaiser Permanente Northern California population between 2002 and…
Abdominal obesity and the risk of esophageal and gastric cardia carcinomas
BACKGROUND: Esophageal adenocarcinoma is rapidly increasing in incidence. Body mass index (BMI) is a risk factor, but its distribution does not reflect the demographic distribution of the cancer (which is highest among White men). Abdominal obesity patterns may explain this…
Meta-analysis of antioxidant intake and the risk of esophageal and gastric cardia adenocarcinoma
OBJECTIVE: The incidence of esophageal adenocarcinoma has been increasing rapidly among many countries. Antioxidant intake is a potentially modifiable protective factor, although the results from individual studies are inconclusive. We conducted a systematic review and statistical synthesis of studies that…
Abdominal obesity and body mass index as risk factors for Barrett’s esophagus
BACKGROUND: Barrett's esophagus is a strong risk factor for esophageal adenocarcinoma, but little is known about its associations with body mass index (BMI) or abdominal obesity. METHODS: We conducted a case-control study within the Kaiser Permanente Northern California population. Persons…
Abdominal obesity, ethnicity and gastro-oesophageal reflux symptoms
OBJECTIVE: To evaluate the associations between abdominal obesity and gastro-oesophageal reflux disease (GORD), and their interactions with ethnicity and gender. DESIGN: A cross-sectional study. Participants completed detailed symptom questionnaires and underwent a standardised examination, including anthropometric measurements. SETTING: A large…
Body mass index and gastroesophageal reflux disease: a systematic review and meta-analysis
BACKGROUND: Gastroesophageal reflux disease (GERD) is a common cause of morbidity and health-care utilization in many countries. Obesity is a potentially modifiable risk factor, but existing studies have conflicting results, possibly due to differences in study design, definitions, or populations.…
Body mass index and adenocarcinomas of the esophagus or gastric cardia: a systematic review and meta-analysis
BACKGROUND: The incidence of esophageal adenocarcinoma has increased markedly in recent decades in many countries. Obesity is a potential risk factor, although the results of individual studies differ. We did a systematic review and statistical synthesis of studies that evaluated…
Risk of hemorrhagic stroke in Asian American ethnic groups
The sparseness of prospective data about hemorrhagic stroke (HS) risk among Asian American ethnic groups led to the investigation of 128,934 persons with self-classified ethnicity at health examinations in 1978-1985. Subsequently, 431 persons were hospitalized for HS; 31% for subarachnoid…
Influence of site classification on cancer incidence rates: an analysis of gastric cardia carcinomas
BACKGROUND: Recent reports suggest that the incidences of cardia and gastroesophageal junction carcinomas have increased markedly. The influence of improvements in cancer site classification (i.e., from no specific site to a specific site) on these incidence rates is unknown. METHODS:…
Marked multi-ethnic variation of esophageal and gastric cardia carcinomas within the United States
OBJECTIVE: No prior studies have contrasted esophageal and gastric cardia carcinoma incidence rates among multiple ethnicities. We evaluated whether these adjacent cancers differ; such detailed demographic analyses would inform risk factor, screening, and intervention studies. METHODS: We contrasted incidence rates…
Marked regional variation in adenocarcinomas of the esophagus and the gastric cardia in the United States
BACKGROUND: Adenocarcinomas of the esophagus and the gastric cardia recently have experienced rapidly increasing incidence rates. Although these sites frequently are combined, they may have different risk factors. METHODS: The authors compared regional incidence rates of esophageal adenocarcinoma, gastric cardia…