Understanding the Density and Distribution of Restaurants in Los Angeles County to Inform Local Public Health...

Area of Science:

• Public Health
• Health Disparities
• Restaurant Industry Analysis

Background:

• Restaurant-based strategies are key for improving menu healthfulness.
• Understanding the local restaurant environment is crucial for policy impact.
• Communities disproportionately affected by diet-related diseases need targeted interventions.

Purpose of the Study:

• To assess the restaurant environment in Los Angeles County.
• To examine the relationship between neighborhood sociodemographics and restaurant density/characteristics.
• To inform the reach of public health strategies in restaurants.

Main Methods:

• Cross-sectional study of 24,292 restaurants and 247 neighborhoods in Los Angeles County.
• Utilized industry data for restaurant location/characteristics and US Census data for sociodemographics.
• Conducted descriptive and bivariate analyses at restaurant and neighborhood levels.

Main Results:

• Only 26.5% of restaurants were large chains (≥20 locations).
• Higher restaurant density correlated with more non-Hispanic white residents and higher education levels.
• Limited evidence showed large chains concentrated in lower socioeconomic status neighborhoods.

Conclusions:

• Strategies targeting only large chain restaurants may have restricted reach.
• Public health initiatives should encompass small chain and independent restaurants.
• Mapping restaurant locations relative to priority populations is vital for addressing diet-related disparities.