Table 4.

Differences between States That Locked Down in March and Those That Did Not

	Environmental Performance (ACE Index)	Infant Mortality Rate (Per 1,000 Live Births)	Eighth‐Grade Reading Proficiency (NAEP Index)	Poverty Rate 2014–16, Average (% of People in Poverty)	Deficient Bridges (% of Total)
March lockdown	15.96	5.7	33.9	12.7	7.5%
No March lockdown	7.51	6.4	31.2	13.7	8.1%
Difference for March lockdown states	112.4% higher	11.0% lower	8.7% higher	6.8% lower	6.9% lower

Sources: Environmental performance: index compiled by Frost and Fiorino (2018); infant mortality: CDC (2020); eighth‐grade reading proficiency: Nation's Report Card (2020); poverty rate: U.S. Census Bureau (2017). Deficient bridges: American Road Transportation Builders Association (2020).