TABLE 1

Baseline Demographics and Visit Characteristics

New EnglandPrague, Czech Republic
ALL N (%) (N = 2096)TAU n (%) (n = 1068)cSBA n (%) (n = 1028)ALL N (%) (N = 589)TAU n (%) (n = 297)cSBA n (%) (n = 292)
Age (mean ± SD)15.8 ± 2.015.9 ± 2.015.6 ± 2.015.0 ± 1.615.0 ± 1.615.0 ± 1.6
Females1220 (58.2)659 (61.7)561 (54.6)278 (47.2)139 (47.6)139 (46.8)
Race/Ethnicitya
 White non-Hispanic1353 (64.6)689 (64.5)664 (64.6)589 (100)297 (100)292 (100)
 Hispanic230 (11.0)106 (9.9)124 (12.1)0 (0.0)0 (0.0)0 (0.0)
 Asian non-Hispanic151 (7.2)77 (7.2)74 (7.2)0 (0.0)0 (0.0)0 (0.0)
 Black non-Hispanic217 (10.4)100 (9.4)117 (11.4)0 (0.0)0 (0.0)0 (0.0)
 Other non-Hispanic145 (6.9)96 (9.0)49 (4.8)0 (0.0)0 (0.0)0 (0.0)
Parents at home
 Two parents1424 (69.2)703 (67.3)721 (71.0)379 (65.0)184 (63.2)195 (66.8)
 One parent or other635 (30.8)341 (32.7)294 (29.0)204 (35.0)107 (36.8)97 (33.2)
Parents’ highest education level
 College/University degree or higher973 (48.0)451 (44.1)522 (52.0)192 (33.1)92 (31.7)100 (34.5)
 High school/Secondary schoolb graduate832 (41.0)427 (41.7)405 (40.3)217 (37.4)111 (38.3)106 (36.6)
 Did not complete high school/secondary school81 (4.0)46 (4.5)33 (3.5)90 (15.5)44 (15.2)46 (15.9)
 Don’t know141 (7.0)99 (9.7)42 (4.2)81 (140)43 (14.8)38 (13.1)
Visit type
 Well visit1819 (87.9)851(81.0)968 (95.0)589 (100)297 (100)292 (100)
 First visit220 (10.7)115 (11.0)105 (10.3)0 (0)0 (0)0 (0)
 Female provider1349 (64.9)663 (62.9)684 (67.1)522 (88.8)263 (88.9)259 (88.7)
Parent substance usec322 (15.4)170 (15.9)152 (14.8)64 (10.9)32 (11.0)32 (10.8)
Sibling substance usec392 (18.7)205 (19.2)187 (18.2)77 (13.2)41 (13.9)36 (12.5)
Peer substance usec1265 (60.5)658 (61.8)607 (59.1)396 (67.3)204 (68.9)192 (65.8)
  • a In the Czech Republic, 97% were Czech nationality and 3% other.

  • b Includes secondary school or gymnasium for Czech sample.

  • c Percentage reporting any “agree” response to scale items assessing youth-reported parent substance use, sibling substance use, and peer substance use.