Region |-----------1959 - 1988 trends----------| Trend N ( 95% CI ) Sign. Rel. Abu. ARI -3.5 29 -5.8 -1.2 *** 0.51 CAL -0.1 21 -1.3 1.2 0.06 LA -0.4 14 -2.0 1.2 0.07 TEX -2.9 75 -4.2 -1.7 *** 0.52 SUR -3.0 166 -4.2 -1.8 *** 0.29