Pump use, CGM use, and HbA1c by SES in the DPV and T1DX registries in 2010–2012 and 2016–2018. A–F: Mean estimates by SES quintiles and time period from logistic (pump use, CGM use) and linear (HbA1c) regression models adjusted for sex, age, diabetes duration, SES, time period, minority status, SES-by–time period interaction, and SES-by–minority status interaction. G and H: Mean estimates with the regression model additionally adjusted for pump and CGM use. Dashed lines are connecting mean estimates for pump and CGM use or regression lines for HbA1c from models including SES as an ordinal term. From these models, P values for trend are given for the association with SES within each time period. Q1 is the lowest and Q5 is the highest SES quintile.