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Introduction: From 2012 to 2014, a total of 17 family child care homes participated in a multisector, community-wide initiative to prevent obesity. Strategies included staff workshops, materials, site visits, and technical assistance regarding development and implementation of nutrition policies. The purpose of the evaluation was to examine the impact of the initiative on family child care home nutrition-related policies and practices and child dietary intake., Study Design: Pre- and post-intervention without control group. Measures taken at baseline and follow-up included structured observations and questionnaires regarding nutrition policies, practices, and environments; documentation of lunch foods served on 5 days; and lunch plate waste observations on 2 days. Paired t-tests were used to determine the significance of change over time., Setting/participants: Seventeen family child care homes in a low-income diverse community in Northern California; children aged 2-5 years who attended the family child care homes., Main Outcome Measures: Change in nutrition-related policies and practices, lunch foods served and consumed., Results: Data was collected at 17 sites for an average of 5.2 children aged 2-5 years per site per day at baseline and 4.6 at follow-up for a total of 333 plate waste observations. There were significant increases in staff training, parental involvement, and several of the targeted nutrition-related practices; prevalence of most other practices either improved or was maintained over time. There were significant increases in the number of sites meeting Child and Adult Care Food Program meal guidelines, variety of fruit and frequency of vegetables offered, and reductions in frequency of juice and high-fat processed meats offered. Adequate portions of all food groups were consumed at both time points with no significant change over time., Conclusions: A simple, policy-focused intervention by a child care resource and referral agency was successful at reinforcing and improving upon nutrition-related practices at family child care homes. Children consumed adequate, but not excessive, portions of the balanced meals served to them, suggesting there is no reason to offer unhealthy options., Supplement Information: This article is part of a supplement entitled Building Thriving Communities Through Comprehensive Community Health Initiatives, which is sponsored by Kaiser Permanente, Community Health., (Copyright © 2018 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.)

Introduction: From 2011 to 2014, small stores in three communities participated in a community-wide obesity prevention initiative. The study aimed to determine how participation in the initiative influenced store environments and consumer purchases., Study Design: Pre- and post-intervention without control. Structured observations of the store environments and intercept surveys of adult shoppers at all stores, and of children at two stores, conducted at baseline and follow-up. Manager/owner interviews regarding perceived impacts of the intervention conducted at follow-up., Setting/participants: Shoppers at nine small stores in three diverse, low-income communities in Northern California., Intervention: The store interventions were determined locally with combinations of strategies such as product displays, healthier options, marketing and promotion, store layout, and facility improvements that were implemented to varying degrees at each site., Main Outcome Measures: Changes in store environments and purchases of select foods and beverages., Results: Stores experienced consistent, but not always significant, declines in purchases of sweets and chips and increases in purchases of fruits and vegetables at select stores. Decreases in purchases of targeted sugar-sweetened beverages were offset by increases in purchases of other sugar-sweetened beverages. Changes in store environments and promotional activities varied widely from store to store and corresponded to variations in changes in purchasing. The owners/managers perceived benefits to their bottom line and community/customer relations, but challenges were identified that may account for the varied degree of implementation., Conclusions: Substantive improvements in fruit and vegetable availability and promotion were needed to achieve a measurable impact on purchases but reducing purchases of unhealthy foods, like sweets and chips, required a less consistent intensive effort. These findings suggest it may be challenging to achieve the consistent and targeted implementation of changes and ongoing promotional efforts at a large enough proportion of stores where residents shop that would be required to get measurable impacts at the community level., Supplement Information: This article is part of a supplement entitled Building Thriving Communities Through Comprehensive Community Health Initiatives, which is sponsored by Kaiser Permanente, Community Health., (Copyright © 2018 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.)

Introduction: Reaching preschool-aged children to establish healthy lifestyle habits, including physical activity, is an important component of obesity prevention efforts. However, few studies have examined family child care homes where nearly 1 million children receive care., Study Design: A pre- and post-intervention evaluation without a control group was conducted to evaluate what changes occurred in family child care homes that participated in the Healthy Eating and Active Living project, a multicomponent obesity prevention initiative, focused on community-driven policy and environmental change in neighborhoods within Kaiser Permanente service areas., Setting/participants: From 2012 to 2014, a total of 17 family child care homes in Northern California participated in the intervention., Intervention: A physical activity workshop for child care staff and technical assistance to develop a policy to promote physical activity and other healthy behaviors., Main Outcome Measures: Pre and post observations, questionnaires, and physical activity logs were completed to assess change in physical activity resources available in the family child care homes, the amount of child screen time offered, type and amount of physical activity offered to children, and implementation of physical activity best practices., Results: Between baseline and follow-up, providers significantly increased both the number of structured, adult-led activities (2.6 vs 3.2 activities per day) and the number of structured, adult-led minutes of activity in which children participated (49 vs 83 minutes per day). Providers also improved screen time practices and made improvements to the physical activity environment., Conclusions: In this study, a community-based organization designed and implemented multicomponent strategies tailored for participating family child care homes. The successful implementation of the intervention likely contributed to implementation of practices that increased opportunities for physical activity for the young children attending these family child care homes., Supplement Information: This article is part of a supplement entitled Building Thriving Communities Through Comprehensive Community Health Initiatives, which is sponsored by Kaiser Permanente, Community Health., (Copyright © 2018 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.)

Background: Despite the resurgence of interest in scratch-cooking as a way to increase the quality and appeal of school meals, many school districts are concerned about the cost implications of switching to scratch-cooking. US Department of Agriculture (USDA) Foods are the single largest source of ingredients for school meals, and about half of USDA Foods are diverted for processing before being sent to the school district., Objective: We aimed to determine whether school lunch entrées made in a district from basic or raw USDA Foods ingredients can be healthier and less expensive to prepare than those sent to external processors., Design/setting: This cross-sectional study examined the relationship between the extent of scratch-cooking and the nutritional content and cost to prepare entrées. Information was gathered by interview with school foodservice personnel and from school foodservice records from a convenience sample of 10 school districts in California that employed varying degrees of scratch-cooking and is diverse in terms of geographic location and the sociodemographics of the student body. The sample included all elementary school lunch entrées that contain USDA Foods offered during October 2010 for a total sample of 146 entrées., Statistical Analyses: Ordinary least squares regressions were used to test for statistically significant differences in cost and nutrient content of entrées according to the level of scratch-cooking., Results: There was no significant relationship between total costs and level of scratch-cooking. Entrées with the highest scratch-cooking scores had significantly lower food costs, higher labor costs, and not significantly different total costs compared with entrées with no scratch-cooking. Nutrient content was not consistently associated with scratch-cooking, but scratch-cooked entrées did include a larger variety of non-fast-food-type entrées., Conclusions: The findings suggest that scratch-cooking can be a cost-effective way to expand the variety of healthy school lunches prepared with USDA Foods., (Copyright © 2014 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.)

The prevailing demographic model for Drosophila melanogaster suggests that the colonization of North America occurred very recently from a subset of European flies that rapidly expanded across the continent. This model implies a sudden population growth and range expansion consistent with very low or no population subdivision. As flies adapt to new environments, local adaptation events may be expected. To describe demographic and selective events during North American colonization, we have generated a data set of 35 individual whole-genome sequences from inbred lines of D. melanogaster from a west coast US population (Winters, California, USA) and compared them with a public genome data set from Raleigh (Raleigh, North Carolina, USA). We analysed nuclear and mitochondrial genomes and described levels of variation and divergence within and between these two North American D. melanogaster populations. Both populations exhibit negative values of Tajima's D across the genome, a common signature of demographic expansion. We also detected a low but significant level of genome-wide differentiation between the two populations, as well as multiple allele surfing events, which can be the result of gene drift in local subpopulations on the edge of an expansion wave. In contrast to this genome-wide pattern, we uncovered a 50-kilobase segment in chromosome arm 3L that showed all the hallmarks of a soft selective sweep in both populations. A comparison of allele frequencies within this divergent region among six populations from three continents allowed us to cluster these populations in two differentiated groups, providing evidence for the action of natural selection on a global scale., (© 2013 John Wiley & Sons Ltd.)

Objectives: We assessed the impact of legislation that established nutrition standards for foods and beverages that compete with reimbursable school meals in California., Methods: We used documentation of available foods and beverages, sales accounts, and surveys of and interviews with students and food service workers to conduct 3 studies measuring pre- and postlegislation food and beverage availability, sales, and student consumption at 99 schools., Results: Availability of nutrition standard-compliant foods and beverages increased. Availability of noncompliant items decreased, with the biggest reductions in sodas and other sweetened beverages, regular chips, and candy. At-school consumption of some noncompliant foods dropped; at-home consumption of selected noncompliant foods did not increase. Food and beverage sales decreased at most venues, and food service à la carte revenue losses were usually offset by increased meal program participation. Increased food service expenditures outpaced revenue increases., Conclusions: Regulation of competitive foods improved school food environments and student nutritional intake. Improvements were modest, partly because many compliant items are fat- and sugar-modified products of low nutritional value. Additional policies and actions are needed to achieve more substantive improvements in school nutrition environments and student nutrition and health.

Purpose: To determine extent and factors associated with implementation of California's school nutrition standards 1 year after standards became active., Methods: Information on competitive foods and beverages available in schools was collected from a representative sample of 56 public high schools in California. Adherence to nutrition standards was calculated for each item and summarized for each school by venue. The association between schools' sociodemographic characteristics and adherence to standards was determined by multivariate analysis., Results: The majority of schools were adhering to the required beverage standards. None of the schools selling competitive foods were 100% adherent to the food standards. Adherence to both standards tended to be highest in food service venues. In univariate analyses, percent nonwhite enrollment, population density, percent free/reduced-price (FRP) meal eligibility, and school size were significantly correlated with the beverage adherence rate. Percent nonwhite enrollment and population density remained significant in the multivariate regression model. Percent nonwhite enrollment and percent FRP meal eligibility were significantly correlated with the food adherence rate in univariate analysis, but neither remained significant in the multiple regression model., Conclusions: California high schools are making progress toward implementation of the state nutrition standards. Beverage standards appear easier to achieve than nutrient-based food standards. Additional support is needed to provide schools with resources to implement and monitor these policies. Simpler standards and/or a reduction in the foods and beverages sold could better enable schools to achieve and monitor adherence.