Publications by authors named "Jessica Madrigal"

Background: We evaluated air emissions of industrial compounds, many of which have carcinogenic or endocrine disrupting properties, in relation to breast cancer incidence.

Methods: Using the United States Environmental Protection Agency's Toxics Release Inventory, we quantified air emissions of 28 compounds near Sister Study participants' residences during the 10 years leading up to study enrollment (2003-2006; n=46,150). We used Cox proportional hazards regression to estimate adjusted hazard ratios (HR) and 95% confidence intervals (CI) for associations of residential emission levels of single pollutants with incident breast cancer.

View Article and Find Full Text PDF

Objective: Elevated pesticide concentrations have been found in dust from homes with residents who use agricultural pesticides, but few studies have compared these concentrations to quantitative measures of their use. We evaluated household pesticide dust concentrations in relation to quantitative, active ingredient-specific metrics of agricultural pesticide use in the Biomarkers of Exposure and Effect in Agriculture Study.

Methods: Participants provided vacuum dust samples (2013-2018) and information regarding recent (last 12 months) and lifetime pesticide use.

View Article and Find Full Text PDF

Background: Inorganic arsenic in drinking water (wAs) is linked to atherosclerosis and cardiovascular disease. However, risk is uncertain at lower levels present in US community water supplies (CWS), currently regulated at the federal maximum contaminant level of .

Objectives: We evaluated the relationship between long-term wAs exposure from CWS and cardiovascular disease in the California Teachers Study cohort.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigated the link between agricultural pesticide use near homes in California and the levels of those pesticides found in household dust, considering factors like crop location and wind direction.
  • Researchers collected carpet dust samples from 578 homes and measured specific herbicides and fungicides, using data from the California Pesticide Use Reporting (CPUR) database.
  • Results showed that higher pesticide application densities were strongly correlated with increased pesticide concentrations in dust, with glyphosate and 2,4-D showing particularly high levels, suggesting a significant impact on residential exposure.
View Article and Find Full Text PDF

Background: Chemicals emitted from industrial facilities include known or suspected mammary carcinogens and endocrine disruptors, but epidemiologic studies are limited. We evaluated associations between air emissions of multiple carcinogenic chemicals and postmenopausal breast cancer risk in a large prospective U.S.

View Article and Find Full Text PDF

Background: Pollutants including metals/metalloids, nitrate, disinfection byproducts, and volatile organic compounds contaminate federally regulated community water systems (CWS) and unregulated domestic wells across the United States. Exposures and associated health effects, particularly at levels below regulatory limits, are understudied.

Objective: We described drinking water sources and exposures for the California Teachers Study (CTS), a prospective cohort of female California teachers and administrators.

View Article and Find Full Text PDF

Background: Industrial facilities across the United States (US) release millions of pounds of toxic chemicals, including metals. Exposure to toxic metals has been associated with adverse health outcomes, but there is limited evidence on the association between living near metal-releasing facilities and the body burden of emitted compounds.

Objective: To investigate the association between residential proximity to toxic metal-emitting industrial facilities and toenail metal concentrations and to evaluate whether associations differed by race.

View Article and Find Full Text PDF

Glyphosate is the most widely applied herbicide worldwide. Glyphosate biomonitoring data are limited for agricultural settings. We measured urinary glyphosate concentrations and assessed exposure determinants in the Biomarkers of Exposure and Effect in Agriculture (BEEA) study.

View Article and Find Full Text PDF

Nitrate levels are increasing in water resources across the United States and nitrate ingestion from drinking water has been associated with adverse health risks in epidemiologic studies at levels below the maximum contaminant level (MCL). In contrast, dietary nitrate ingestion has generally been associated with beneficial health effects. Few studies have characterized the contribution of both drinking water and dietary sources to nitrate exposure.

View Article and Find Full Text PDF

Background: Nitrate and nitrite ingestion has been linked to kidney cancer, possibly via the endogenous formation of carcinogenic N-nitroso compounds. These exposures might also contribute to end-stage renal disease (ESRD).

Objectives: We investigated associations of drinking water nitrate and dietary nitrate and nitrite intakes (total and by food type) with incident ESRD in the Agricultural Health Study.

View Article and Find Full Text PDF

Background: Industrial facilities are not located uniformly across communities in the United States, but how the burden of exposure to carcinogenic air emissions may vary across population characteristics is unclear. We evaluated differences in carcinogenic industrial pollution among major sociodemographic groups in the United States and Puerto Rico.

Methods: We evaluated cross-sectional associations of population characteristics including race and ethnicity, educational attainment, and poverty at the census tract level with point-source industrial emissions of 21 known human carcinogens using regulatory data from the US Environmental Protection Agency.

View Article and Find Full Text PDF
Article Synopsis
  • Per- and polyfluoroalkyl substances (PFAS) are chemicals linked to immunotoxic effects that can be transferred from mothers to their unborn children, but their connection to childhood leukemia had not been thoroughly researched.
  • This study analyzed maternal PFAS levels in the blood during early pregnancy and their potential association with acute lymphoblastic leukemia in children under 15 years, using data from the Finnish Maternity Cohort.
  • Results indicated that higher levels of N-methyl-perfluorooctane sulfonamidoacetic acid were associated with increased leukemia risk, especially in children diagnosed before age 5, but other studied PFAS showed inconsistent associations.
View Article and Find Full Text PDF

Human exposure to per- and polyfluoroalkyl substances (PFAS) occurs globally through contaminated food, dust, and drinking water. Studies of PFAS and thyroid cancer have been limited. We conducted a nested case-control study of prediagnostic serum levels of 19 PFAS and papillary thyroid cancer (400 cases, 400 controls) in the Finnish Maternity Cohort (pregnancies 1986-2010; follow-up through 2016), individually matched on sample year and age.

View Article and Find Full Text PDF

Pesticide dust concentrations in homes have been previously associated with occupational and home/garden use of pesticides, hygiene practices, and other factors. This study evaluated the relationship between self-reported use of 2,4-dichlorophenoxyacetic acid (2,4-D) and house dust concentrations and these factors in the Biomarkers of Exposure and Effect in Agriculture (BEEA) Study, a molecular epidemiologic study of farmers in Iowa and North Carolina. The vacuum dust from the homes of 35 BEEA participants was analyzed for the presence of 2,4-D.

View Article and Find Full Text PDF

Background: Residential use of pesticides has been associated with increased risk of childhood acute lymphoblastic leukemia (ALL). We evaluated determinants of glyphosate concentrations in house dust and estimated ALL risk in the California Childhood Leukemia Study (CCLS).

Methods: The CCLS is a population-based case-control study of childhood leukemia in California.

View Article and Find Full Text PDF
Article Synopsis
  • - The study investigated how endogenous sex hormones (like testosterone and estradiol) are linked to diabetes progression in 693 postmenopausal women and 1015 men aged 45 to 74, who were followed for 6 years without prior diabetes.
  • - In men, higher testosterone levels were associated with a lower chance of progressing from prediabetes to diabetes, while in women, sex hormone-binding globulin (SHBG) was linked to better glycemic control and less progression to diabetes.
  • - The findings suggest that sex hormones play a role primarily in the later stages of diabetes development, highlighting the need for further research to understand their biological effects on glucose regulation.
View Article and Find Full Text PDF

Background: Pesticide exposure has been associated with adverse health effects. We evaluated relationships between proximity to agricultural insecticide applications and insecticides in household dust, accounting for land use and wind direction.

Methods: We measured concentrations (ng/g) of nine insecticides in carpet-dust samples collected from 598 California homes.

View Article and Find Full Text PDF

Purpose: Outdoor light at night (LAN) can result in circadian disruption and hormone dysregulation and is a suspected risk factor for some cancers. Our study is the first to evaluate the association between LAN and risk of endometrial cancer, a malignancy with known relationship to circulating estrogen levels.

Methods: We linked enrollment addresses (1996) for 97,677 postmenopausal women in the prospective NIH-AARP cohort to satellite imagery of nighttime radiance to estimate LAN exposure.

View Article and Find Full Text PDF

Background: Despite the benefits of genetic counseling and testing, uptake of cancer genetic services is generally low and Black/African American (Black) women are substantially less likely to receive genetic services than non-Hispanic White women. Our team developed a culturally sensitive, narrative decision aid video to promote uptake of genetic counseling among Black women at risk for a hereditary breast cancer syndrome that can be incorporated in conjunction with population-based cancer risk assessment in a clinical setting. We report here a pilot study to demonstrate changes in intention to access genetic counseling and intervention satisfaction.

View Article and Find Full Text PDF

We describe drinking water sources and water quality for a large agricultural cohort. We used questionnaire data from the Agricultural Health Study (N = 89,655), a cohort of licensed pesticide applicators and their spouses in Iowa (IA) and North Carolina (NC), to ascertain drinking water source at enrollment (1993-1997). For users of public water supplies (PWS), we linked participants' geocoded addresses to contaminant monitoring data [five haloacetic acids (HAA5), total trihalomethanes (TTHM), and nitrate-nitrogen (NO-N)].

View Article and Find Full Text PDF

Individuals living in areas with the potential for elevated metal exposure from industrial sources may have reduced pulmonary function. We evaluated cross-sectional associations of toenail concentrations of 17 metals within a community area of residence and asthma control in 75 children, and pulmonary function measures [forced expiratory volume in one second (FEV1; liters), forced vital capacity (FVC; liters), FEV1 to FVC ratio (FEV1:FVC), and mid-exhalation forced expiratory flow rate (FEF 25-75%; liters/second)], in a subsample of 39 children with diagnosed asthma in Chicago, Illinois. Linear regression models were used to estimate adjusted regression coefficients and standard errors (SE) for the associations between ≥ median versus View Article and Find Full Text PDF

Objective: Although vasectomy is safer, more effective and less expensive than tubal ligation, rates of permanent contraception are consistently higher in women than in men. We sought to explore vasectomy interest and awareness in patients and their partners during prenatal visits, a time when contraceptive counselling is typically performed.

Methods: Anonymous surveys were distributed between January and July 2019 to a cross-sectional, convenience sample of pregnant women and their partners, if available, presenting for outpatient prenatal care at two hospitals (one public, one private) serving different patient populations in Chicago, Illinois, USA.

View Article and Find Full Text PDF

Background: Self-reported residential use of pesticides has consistently been associated with increased risk of childhood leukemia. However, these studies were limited in their ability to identify specific insecticide active ingredients that were associated with risk.

Objective: We used household carpet dust measurements of 20 insecticides (two carbamate, 10 organophosphate, two organochlorine, and six pyrethroid) as indicators of exposure and evaluated associations with the risk of childhood acute lymphoblastic leukemia (ALL).

View Article and Find Full Text PDF

Introduction: Adherence to follow-up is an important consideration when treating non-emergent ectopic pregnancy. Our aim was to evaluate the management of ectopic pregnancy among patients in a public hospital system and to identify factors related to adherence of medical management in this population.

Material And Methods: A retrospective review to evaluate the management of ectopic pregnancy among women in a public hospital system, including all women undergoing treatment for ectopic pregnancy from 2012 to 2017.

View Article and Find Full Text PDF

Background: Organochlorine pesticides are detectable in serum from most adults. Animal studies provide evidence of pesticide effects on sex hormones, suggesting that exposures may impact human reproductive function. Mounting evidence of sex differences in chronic diseases suggest that perturbations in endogenous sex hormones may influence disease risk.

View Article and Find Full Text PDF