Significant and trend state-by-year interactions from regression analyses (Tables 1-3) presented as odds ratios within state (NMMS and Colorado) and time (2006-8 and 2009-11).Row 1 represents 12-17 year olds, Row 2 represents those 26+ years. X-axis indicates years (2006-8 and 2009-11), while y-axis indicates odds ratios.