Fig. 1From: Contemporary epidemiology of rising atrial septal defect trends across USA 1991–2016: a combined ecological geospatiotemporal and causal inferential studyUnivariate ASD trends. a ASDI over time. b ASDI by state THC exposure. c ASDI by THC exposure dichotomized into high and low ASDI states. d Cluster Analysis of the ASD – Cannabis exposure dataBack to article page