Table 2 Post-hoc comparisons of impulsivity measures in Kruskal-Wallis test among annual prevalence of substance-involvement groups

NSG

 Median

57 ^a

59^a

8 ^a

154 ^a

AG

 Median

61 ^b

64^b

10 ^b

168 ^a

ATG

 Median

70 ^c

73^c

14 ^c

154 ^a

ATCG

 Median

74 ^d

81 ^d

15 ^c

.074 ^b