Household identifier (per-round)
DHS survey round (year)
Woreda (district) identifier
Region numeric code
Ever-treated woreda (1=hosts a park)
Treatment switch (1 once the park is open)
Coarse event phase (rounds since opening)
Durable goods per capita (standardized)
Housing-quality indicator (1=meets all)
DHS wealth index (standardized)
Household size
Age of household head
DHS sampling weight