Before revision:  By contrast,  increases in HAZ above a country's basal estimate (accrued HAZ) show strong correlations with these same variables, suggesting that  accrued HAZ captures standard definitions of stunting as impaired growth due to undernutrition.
After revision:  By contrast, increases in HAZ above a country's starting point, which we define as accrued HAZ, show strong correlations with these same variables, suggesting that accrued HAZ captures standard definitions of stunting as impaired growth due to undernutrition.