- Reproductive Health and Contraception
- Maternal and Perinatal Health Interventions
- Global Maternal and Child Health
- Gastric Cancer Management and Outcomes
- Reproductive Health and Technologies
- Assisted Reproductive Technology and Twin Pregnancy
- Maternal and fetal healthcare
- Pelvic floor disorders treatments
- Ectopic Pregnancy Diagnosis and Management
- Helicobacter pylori-related gastroenterology studies
- Anorectal Disease Treatments and Outcomes
- Colorectal Cancer Screening and Detection
- Genetic factors in colorectal cancer
- Pregnancy and Medication Impact
- Colorectal and Anal Carcinomas
- Traumatic Brain Injury Research
- Female Genital Mutilation/Cutting Issues
- Gestational Diabetes Research and Management
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Streptococcal Infections and Treatments
- Pelvic and Acetabular Injuries
- Reproductive tract infections research
- Health Systems, Economic Evaluations, Quality of Life
- Clinical practice guidelines implementation
- Gynecological conditions and treatments
Pasadena City College
2023
Oakland University
2023
Kaiser Permanente
2012-2022
Kaiser Permanente San Francisco Medical Center
2017-2019
Biostatistical Consulting (United States)
2018-2019
Kaiser Foundation Hospital
2012-2018
Kaiser Permanente Vallejo Medical Center
2018
Specifica (United States)
2016
Kaiser Permanente Oakland Medical Center
2016
Kaiser Permanente Santa Clara Medical Center
2015
Gastric intestinal metaplasia and dysplasia are precursor lesions for adenocarcinoma. The risks of progression to malignancy from these not well characterized, particularly in the US populations.We identified 4,331 Kaiser Permanente Northern California members who were diagnosed with gastric or between 1997 2006 followed them through December 2013. incident rates adenocarcinoma, relative comparison general population, predictors investigated.Among 4,146 individuals 141 low-grade 24,440...
In Brief OBJECTIVE: To evaluate the relationship between Neisseria gonorrhea and Chlamydia trachomatis screening strategies risk of pelvic inflammatory disease (PID) after intrauterine device (IUD) insertion. METHODS: We conducted a retrospective cohort study all IUD insertions at Kaiser Permanente Northern California from January 2005 to August 2009. The PID incidence within 90 days insertion was compared among women who were not screened for N C trachomatis. powered equivalence with...
Background: Certain medications are identified by the U.S. Food and Drug Administration (FDA) as class D or X because they increase risk for birth defects if used during pregnancy. Objective: To assess pregnancy rates frequency of contraceptive counseling documented with prescriptions drugs filled women reproductive age. Design: Description in 2001. Setting: A large health maintenance organization northern California Patients: 488 175 age 15 to 44 years who a total 1 011 658 A, B, D,...
To compare cesarean delivery rates and indications by race/ethnicity among nulliparous women with term, singleton, vertex presentation deliveries.This is a retrospective cohort study of delivering neonates at Kaiser Permanente Northern California from 1/1/2016 to 6/30/2017. Women for elective, malpresentation, or previa were excluded. Multivariable logistic regression models adjusting maternal, neonatal, facility factors used assess the likelihood race/ethnicity. Further modeling was...
Because of the highly stigmatized nature abortion care delivery and restriction provision in most states, little is known about quality beyond procedural safety. This study examined which aspects contributed to patient experiences. Data from a prospective, observational 9087 women aged 16 44 years, 22 clinics across California, who responded postprocedure survey, were analyzed using mixed-effects logistic regression. Patient experience scores very high (mean overall satisfaction = 9.4 [0-10...
<h3>Importance</h3> Intrauterine device (IUD) expulsion increases the risk of unintended pregnancy; how timing postpartum IUD insertion and breastfeeding are associated with is relevant to benefit-risk profile. <h3>Objective</h3> To evaluate association status incidence expulsion. <h3>Design, Setting, Participants</h3> The Association Perforation Expulsion Devices (APEX-IUD) cohort study included women aged 50 years or younger an between 2001 2018. analysis focused on a subcohort at 52 fewer...
The APEX-IUD (Association of Perforation and Expulsion Intrauterine Devices) study evaluated the association postpartum timing intrauterine device (IUD) insertion, breastfeeding, heavy menstrual bleeding, IUD type (levonorgestrel-releasing vs copper) with risks uterine perforation expulsion in usual clinical practice. We summarize clinically important findings to inform counseling shared decision making.APEX-IUD was a real-world (using U.S. health care data) retrospective cohort individuals...
Purpose: Gastric cancer often occurs in the elderly but is uncommon young individuals.Whether patients have different clinical behaviors and outcomes from those of older remain unclear.Materials Methods: We identified 1,366 cases newly diagnosed noncardia gastric adenocarcinoma Kaiser Permanente Northern California Cancer Registry between 2000 2010.We then compared clinicopathological features survival among age groups.Results: The male : female ratio differed significantly younger patient...
Objective The objective of this study is to evaluate racial/ethnic differences in disease manifestations and survival a US cohort patients with systemic sclerosis ( SS c), focus on Asian patients. Methods A retrospective was conducted among Kaiser Permanente Northern California adults an incident c diagnosis by rheumatologist from 2007 2016, confirmed chart review fulfill 2013 American College Rheumatology ACR )/European League Against Rheumatism EULAR ) classification criteria....
Guidelines recommend screening all patients with newly diagnosed colorectal cancer (CRC) for Lynch syndrome (LS). However, the efficiency of universal LS in elderly populations has not been well studied.To compare performance age-restricted and using reflex mismatch repair (MMR) immunohistochemistry (IHC) CRC tumors.Retrospective cohort study.A large, diverse, community-based health care system.3891 persons who had between 2011 2016.Diagnostic yield different strategies.Sixty-three cases...
To validate algorithms identifying uterine perforations and intrauterine device (IUD) expulsions to ascertain availability of breastfeeding status at the time IUD insertion.
The aim of this study is to assess the incidence, medical course, and outcomes women who carried a pregnancy delivery after placement transvaginal mesh sling for treatment stress urinary incontinence (SUI) in closed health care system.We conducted retrospective case series 15 identified within Kaiser Permanente Northern California region based on coding SUI. Records were cross-matched against records live births. electronic subjects extensively reviewed.Fifteen patients included analysis....
Intrauterine devices are effective and safe, long-acting reversible contraceptives, but the risk of uterine perforation occurs with an estimated incidence 1 to 2 per 1000 insertions. The European Active Surveillance Study for Devices, a prospective observational study that enrolled 61,448 participants (2006-2012), found women breastfeeding at time device insertion or inserted ≤36 weeks after delivery had higher perforation. Association Uterine Perforation Expulsion Device (APEX-IUD) was Food...