Table 2

Providers’ estimated prevalence of substance use among all adolescents and young adults and among their patients (medians and IQR)

CigaretteE-cigaretteHookahMarijuanaBluntsAlcoholP value*Significant post hoc tests†
Median
(Q1/Q3)
Median
(Q1/Q3)
Median
(Q1/Q3)
Median
(Q1/Q3)
Median
(Q1/Q3)
Median
(Q1/Q3)
10–17 years
 All adolescents15 (10, 20)10 (5, 15)5 (2, 10)20 (10, 30)5 (3, 10)25 (17, 45)<0.0001a,b,c,d,e,f,g,h,i,j,k,l,m,n
 Your adolescent patients10 (5, 15)5 (2, 10)2 (1, 5)15 (5, 25)5 (1, 10)20 (10, 33)<0.0001a,b,c,d,e,f,g,h,i,j,k,l,n,o
18–26 years
 All young adults20 (15, 25)15 (10, 20)10 (5, 15)27.5 (15, 40)10 (5, 20)70 (40, 80)<0.0001a,b,c,d,e,f,g,h,i,j,k,l,m,n
 Youryoung adult patients15 (10, 20)10 (5, 15)5 (2, 10)20 (10, 39)5 (2, 15)60 (40, 75)<0.0001a,b,c,d,e,f,g,h,i,j,k,l,n
  • a = alcohol vs marijuana, b = alcohol vs cigarette, c = alcohol vs e-cigarette, d = alcohol vs blunts, e = alcohol vs hookah, f = marijuana vs cigarette, g = marijuana vs e-cigarette, h = marijuana vs blunts, i = marijuana vs hookah, j = cigarette vs e-cigarette, k = cigarette vs blunts, l = cigarette vs hookah, m = e-cigarette vs blunts, n = e-cigarettes vs hookah, o = blunts vs hookah. Q1/Q3 = 1st and 3rd quartiles of IQR (25th–75th percentile). P values <0.05 were considered statistically significant.

  • *P values indicate comparison on providers’ estimated prevalence between substance types within an age group. These were derived from Kruskal-Wallis test.

  • †Dwass-Steel-Critchlow-Fligner test was used to test for multiple pairwise comparisons between substance types.