PHRESH is composed of four separate research studies sponsored by the National Institutes of Health (NIH). We are committed to sharing the results with participants, local stakeholders, and communities nationwide. Below are highlights from our findings to date. See our Publications page for more details on the results.
Since 2013, we have been funded to extend our analysis to include other important health indicators and a broader focus on other changes that are occurring in the neighborhood. We are building on the PHRESH study by examining residents’ heart health, physical activity, sleep, and use of neighborhood green spaces and public areas—in addition to food choices, neighborhood perceptions, and overall health and well-being.
In 2016, we are collecting data to assess the longer-term effects of neighborhood changes. In this phase of the study, we are focusing on diet, physical activity, sleep, and heart health, among other measures of health and well-being.
After data collection in summer 2016, analysis is expected to be available in 2017. Subsequent data collection will occur in 2018, with results expected in 2019.
PHRESH Follow-Up (2014)
In 2014, we repeated the 2011 data collection after a new grocery store was built in the Hill District.
Improvements in Dietary Intake, Body Mass Index, and Neighborhood Perceptions
Compared with Homewood residents, Hill District residents had somewhat healthier diets in 2014. They consumed fewer calories, less added sugar, and fewer "empty calories." However, there was no statistically significant change in other dietary outcomes, such as consumption of fruits, vegetables, and whole grain foods.
There was no significant change in BMI in the Hill District, the main indicator used to measure obesity, and there were no significant changes in rates of obesity or overweight since 2011. In Homewood, average BMI, obesity, and overweight were all slightly worse than in 2011.
Perceptions of access to healthy foods improved significantly for Hill District residents, as did overall satisfaction with the neighborhood. After the arrival of the full-service grocery store, 80% of Hill District respondents said they were satisfied or very satisfied with their neighborhood (compared with 66% in 2011).
|Changes for Hill District Residents After Opening of Supermarket*||Hill District Resident Changes Compared with Changes Among Homewood (Comparison Neighborhood) Residents|
|Consumption of "empty calories" (solid fats, alcohol, and added sugar)||Decreased||Improved|
|Consumption of whole grain foods, fruits, and vegetables||Decreased||No difference|
|Body mass index (average)||No change||No difference|
|Perceived access to healthy food||Increased||Improved|
* This table only indicates a decrease or improvement that was shown to be statistically significant at the p < 0.05 level.
No Clear Connection Between Improvements and the Grocery Store's Opening
We could not link the gains in the Hill District to the store's opening, but we might see more definitive outcomes as the study progresses.
- Nearly all dietary improvements were related to reduced food intake. Over time, this could translate to lower obesity rates. The observation period (approximately one year after the store opened) may not have been long enough to detect changes.
- Other changes in the neighborhood could explain improvements in residents' diets. Although the store's opening was the largest change in the Hill District during the study period, it stimulated additional neighborhood investment and improvements.
- The new Hill District grocery store was the result of extensive community organizing, advocacy, and investment. It is difficult to separate the effects of this campaign from the effects of the new grocery store in improving residents' dietary choices.
PHRESH Plus Baseline 2013
Exercising regularly can help bring many positive changes to people's health. There is evidence of a relationship between a neighborhood's green space environment and residents' participation in exercise. PHRESH Plus, a five year study connected with PHRESH, shares PHRESH's mission of understanding neighborhood health and well-being, with special attention to the exercise and physical activity choices of residents in the Hill District and Homewood.
The first publication from PHRESH Plus, Are Food Deserts Also Play Deserts?, found that:
- Residents of food desert neighborhoods used their nearby parks significantly less than residents of other areas both locally and nationally.
- Few organized or supervised activities were observed in the low-income neighborhood parks.
- Individuals residing near the observed parks experienced disproportionate amounts of disability and physical limitations.
- Park users in the observed areas were not representative of the demographic mix of local residents; substantially more males used the parks than females, and children and teens used the parks more than older adults.
- Over 85 percent of neighborhood residents considered the nearby parks safe to use during daylight hours.
PHRESH Baseline (2011)
In 2011, we randomly selected 1,809 households in the Hill District neighborhood, and 896 participated in our interview. We also randomly selected 1,091 households in Homewood, our comparison neighborhood, and 476 participated. This initial data collection provided us with baseline characteristics of the two neighborhoods.
In addition to the data reported below, we asked residents about their dietary intake and perceived access to healthy food. We also recorded participants' height and weight to calculate their body mass index (BMI).
- 90% of respondents in both neighborhoods were African-American.
- 66% of respondents had a household income of less than $20,000 per year.
- Hill District respondents had lived in their neighborhood for an average of 32 years; Homewood residents had lived in their neighborhood for an average of 18 years.
- 66% of Hill District respondents and more than half of Homewood respondents were satisfied/very satisfied with their neighborhood as a place to live.
- Although most respondents felt safe walking around their neighborhoods at night, two-thirds of Hill District respondents and 79% of Homewood respondents expressed concern about crime and violence.
Food Security and Health
- There were limited produce options in Hill District food stores:
- There was no full-service grocery store at the start of our study.
- Three of the 14 food stores sold fresh fruit, and only one sold fresh vegetables.
- 40–50% of households experienced food insecurity, compared with 13% of households across Pennsylvania.
- One in two residents had high blood pressure; one in five had diabetes, high cholesterol, or heart disease; and two in five had arthritis.
- There were limited produce options in Homewood food stores:
- There was no full-service grocery story in the neighborhood.
- None of the 14 food stores in the neighborhood sold fresh fruit or vegetables.
- 36% of households experienced food insecurity.
- One in two residents had high blood pressure; one in four had high cholesterol, one in five had diabetes or heart disease, and two in five had arthritis.