Publications by authors named "Karla Hanson"

Using the internet to recruit participants into research trials is effective but can attract high numbers of fraudulent attempts, particularly via social media. We drew upon the previous literature to rigorously identify and remove fraudulent attempts when recruiting rural residents into a community-based health improvement intervention trial. Our objectives herein were to describe our dynamic process for identifying fraudulent attempts, quantify the fraudulent attempts identified by each action, and make recommendations for minimizing fraudulent responses.

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Objective: The COVID-19 pandemic led to greater food insecurity across the world, and government and charitable organisations did not always respond quickly enough or adequately to meet food needs. Mutual aid (MA) - neighbours helping neighbours to meet survival needs - mobilised residents to share food, often through outdoor food cabinets and refrigerators. This study aims to understand how MA food sharing was implemented, including food availability, acceptability, accessibility and impact on food access.

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Households with limited financial resources often struggle with inadequate access to healthy, affordable food. Community supported agriculture (CSA) has the potential to improve access to fresh fruits and vegetables, yet low-income households seldom participate due to cost and other barriers. Cost-offset (or subsidized) CSA reduces financial barriers, yet engagement varies widely among those who enroll.

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Introduction: COVID-19 acutely shocked both socio-economic and food systems in 2020. We investigated the impact of COVID-19 on production and consumption of gardened produce, backyard poultry, wild game and fish, and foraged mushrooms, berries, and other plants in New York State, aiming to understand crisis influenced food choice and motivations, including food security.

Methods: We conducted an online, cross-sectional survey in October-December 2020 with a convenience sample of participants ( = 505) with an interest in gardening, poultry rearing, foraging, hunting, and/or fishing from six counties in upstate New York.

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Background: The food system has a dynamic influence on disparities in food security and diet-related chronic disease. Community supported agriculture (CSA) programs, in which households receive weekly shares of produce from a local farmer during the growing season, have been examined as a possible food systems-based approach for improving diet and health outcomes. The purpose of this study was to estimate the cost of implementing and participating in a multi-component subsidized community supported agriculture intervention and calculate cost-effectiveness based on diet and food security impacts.

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Objective: Inadequate consumption of fruits and vegetables (FV) can negatively impact health. Cost-offset, or subsidized, community-supported agriculture (CO-CSA) may change FV preparation behaviors among caregivers in low-income households. We assessed changes in FV preparation frequency and methods during and after participation in a CO-CSA plus tailored nutrition education intervention.

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Successful recruitment into randomized trials and interventions is essential to advance scientific knowledge to improve health. This rapid assessment study explored how the COVID-19 pandemic affected participant recruitment overall, identified how it exacerbated existing challenges to recruit hard-to-reach populations, and described how NIH-funded Principal Investigators (PIs) responded to COVID-era recruitment challenges. A cross-sectional survey of NIH-funded PIs conducting interventions and trials related to health behaviors was conducted in 2022.

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Rural communities are at higher risk for physical inactivity, poor dietary behaviors, and related chronic diseases and obesity. These disparities are largely driven by built environment, socioeconomic, and social factors. A community-based cluster randomized controlled trial of an intervention, the Change Club, aims to address some of these disparities via civic engagement for built environment change.

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Background: Prior studies demonstrate associations between risk factors for obesity and related chronic diseases (e.g., cardiovascular disease) and features of the built environment.

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Objective: Subsidised or cost-offset community-supported agriculture (CO-CSA) connects farms directly to low-income households and can improve fruit and vegetable intake. This analysis identifies factors associated with participation in CO-CSA.

Design: Farm Fresh Foods for Healthy Kids (F3HK) provided a half-price, summer CO-CSA plus healthy eating classes to low-income households with children.

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The Farmers' Market Nutrition Program (FMNP) in the U.S. provides coupons for the purchase of fruit and vegetables (FV) to pregnant women and children enrolled in the Special Supplemental Nutrition Program for Women, Infants and Children (WIC), and to income-eligible adults 60+ years of age.

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Background: The coronavirus disease 2019 (COVID-19) pandemic profoundly affected food systems including food security. Understanding how the COVID-19 pandemic impacted food security is important to provide support and identify long-term impacts and needs.

Objective: The National Food Access and COVID research Team (NFACT) was formed to assess food security over different US study sites throughout the pandemic, using common instruments and measurements.

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Objective: To examine cross-sectional associations between farmers' market shopping behaviours and objectively measured and self-reported fruit and vegetable (FV) intake among rural North Carolina (NC) and New York City (NYC) shoppers.

Design: Cross-sectional intercept surveys were used to assess self-reported FV intake and three measures of farmers' market shopping behaviour: (1) frequency of purchasing FV; (2) variety of FV purchased and (3) dollars spent on FV. Skin carotenoids, a non-invasive biomarker for FV intake, were objectively measured using pressure-mediated reflection spectroscopy.

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Background: Adults and children in the U.S. consume inadequate quantities of fruit and vegetables (FV), in part, due to poor access among households with lower socioeconomic status.

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Accurate measurement of fruit and vegetable (FV) intake is important for nutrition surveillance and evaluation of dietary interventions. We compared two tools for reporting FV intake to objective measurement of skin carotenoids among children. FV cups/day was assessed by repeated 24 h dietary recalls (24H FV) and the National Cancer Institute's All-Day Fruit and Vegetable Screener (NCI FV).

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A randomized trial of Farm Fresh Foods for Healthy Kids (F3HK) was initiated across 4 states and 12 farms to test whether cost-offset community-supported agriculture (CO-CSA) could improve diet quality among children in low-income families. Intervention households purchased a 50% subsidized share of local produce and were invited to nine complimentary nutrition classes. The purpose of this study was to assess F3HK reach, dose, and fidelity via a mixed methods process evaluation.

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Objective: To examine participants' experiences with nutrition education classes that were implemented with and designed to complement a cost-offset community-supported agriculture (CSA) programme.

Design: Qualitative analysis of data from twenty-eight focus groups with ninety-six participants enrolled in Farm Fresh Foods for Healthy Kids (F3HK). Transcribed data were coded and analysed by a priori and emergent themes.

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Background: Accurate assessment of fruit and vegetable intake (FVI) is essential for public health nutrition research and surveillance. Blood carotenoid concentrations are robust biomarkers of FVI, but collecting blood samples typically is not feasible in population-based studies. Understanding how well non-invasive measures compare to blood estimates is important for advancing surveillance and evaluation.

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Article Synopsis
  • Community-supported agriculture (CSA) helps participants consume more fruits and vegetables (FV), possibly due to improved access or positive beliefs about healthy eating.
  • A study surveyed applicants to a cost-offset CSA (CO-CSA) program, including those who purchased from it and those who didn’t, focusing on their knowledge, attitudes, and beliefs regarding diet.
  • Results showed that CO-CSA applicants had better food-related knowledge and habits compared to a comparison group, and households that purchased from CO-CSA reported significantly higher FV consumption among children.
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Objective: Describe fruit and vegetable (FV) preferences and other factors that may influence participation in community-supported agriculture (CSA).

Design: In-depth, semi-structured interviews.

Setting: Eight rural/micropolitan communities in 4 US states.

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Objective: To examine perspectives on food access among low-income families participating in a cost-offset community-supported agriculture (CO-CSA) programme.

Design: Farm Fresh Foods for Healthy Kids (F3HK) is a multicentre randomized intervention trial assessing the effect of CO-CSA on dietary intake and quality among children from low-income families. Focus groups were conducted at the end of the first CO-CSA season.

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This paper examines fruit and vegetable intake (FVI) in low-income households that participated in a cost-offset (CO), or 50% subsidized, community-supported agriculture (CSA) program. CSA customers paid farms upfront for a share of the harvest, and received produce weekly throughout the growing season. A cohort of adults and children 2-12 y in a summer CO-CSA were surveyed online twice: August 2015 ( = 41) and February 2016 ( = 23).

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Background: Childhood obesity persists in the United States and is associated with serious health problems. Higher rates of obesity among children from disadvantaged households may be, in part, attributable to disparities in access to healthy foods such as fruits and vegetables. Community supported agriculture can improve access to and consumption of fresh produce, but the upfront payment structure, logistical barriers, and unfamiliarity with produce items may inhibit participation by low-income families.

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. The repeated loss and regain of body weight, referred to as weight cycling, may be associated with negative health complications. Given today's obesity epidemic and related interventions to address obesity, it is increasingly important to understand contexts and factors associated with weight loss maintenance.

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Background: Food insecurity is adversely associated with the physical and mental health of adults and children, and the mechanism that underlies this association has been assumed to be dietary intake of lower quality in food insecure than food secure individuals. A thorough understanding of observed associations between food insecurity and dietary quality is needed to test this assumption and may highlight pathways through which to improve the health of food-insecure adults and children.

Objective: We systematically reviewed all evidence of associations between food insecurity and dietary quality and contrasted associations observed in adults and those for children.

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