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. 2014 Jul 26;41(1):30–43. doi: 10.1093/schbul/sbu108

Table 1.

Baseline Demographic and Clinical Characteristics of the Sample

Comparison (n = 87) Treatment (n = 250) Statistic p
Demographic Characteristics Total (n = 337) CLR (n = 87) CHR (n = 205) EFEP (n = 45)
Age (mean, SD) 16.56 (3.28) 16.23 (3.18) 16.40 (3.30) 17.93 (3.10) F = 4.72 .01
Female, n (%) 134 (40) 26 (30) 89 (43) 19 (42) χ 2 = 4.80 .09
Caucasian, n (%) 208 (62) 62 (71) 125 (61) 21 (47) χ 2 = 7.70 <.03
African-American, n (%) 31 (9) 5 (6) 16 (8) 10 (22) χ 2 = 10.86 < .01
Asian-American, n (%) 13 (4) 4 (5) 9 (4) 0 (0) χ 2 = 2.09 .35
Hispanic, n (%) 47 (15) 8 (9) 33 (17) 6 (16) χ 2 = 2.66 .27
Married, n (%) 2 (0.6) 1 (0.1) 1 (0.5) 0 (0) χ 2 = 0.77 .68
In school/working, n (%) 280 (83) 73 (84) 171 (84) 36 (80) χ 2 = 0.40 .82
Income (dollars) 40K–50K 50K–60K 40K–50K 30K–40K F = 3.53 .03
Mother’s age 45.79 (8.11) 46.09 (7.41) 45.96 (8.52) 44.53 (7.45) F = 0.54 .58
Mother’s years education 14.13 (2.53) 14.58 (2.32) 13.91 (2.69) 14.32 (2.06) F = 1.80 .17
Father’s age 49.20 (8.14) 51.16 (7.17) 48.52 (8.59) 47.81 (7.39) F = 1.83 .17
Father’s years education 14.68 (2.10) 14.71 (2.10) 14.76 (2.02) 14.13 (2.41) F = 0.65 .53
SCID-IV diagnoses
 No diagnosis 47 (14%) 19 (22%) 28 (14%) 0 (0%) χ2 = 11.69 <.01
 Any Axis I, current or lifetime 284 (84%) 67 (78%) 173 (86%) 44 (100%) χ2 = 11.69 <.01
 Mood disorder 141 (42%) 32 (37%) 101 (50%) 8 (18%) χ2 = 16.56 <.01
  Bipolar 16 (5%) 2 (2%) 11 (5%) 3 (7%) χ2 = 1.73 .42
  Major depression 114 (34%) 27 (31%) 83 (41%) 4 (9%) χ2 = 17.06 <.01
 Anxiety disorder 120 (36%) 26 (30%) 84 (42%) 10 (23%) χ2 = 7.50 <.03
  PTSD 28 (8%) 1 (1%) 25 (12%) 2 (5%) χ2 = 10.89 <.01
  Obsessive–Compulsive Disorder 24 (7%) 3 (3%) 20 (10%) 1 (2%) χ2 = 5.61 <.07
  Generalized anxiety disorder 27 (8%) 5 (6%) 18 (9%) 4 (9%) χ2 = 0.85 .65
 Substance abuse 28 (8%) 8 (9%) 15 (7%) 5 (11%) χ2 = 0.82 .67
 Psychosis 44 (13%) 0 (0%) 3 (1%) 41 (93%) χ2 = 281.2 <.01
 Other 17 (5%) 5 (6%) 10 (5%) 2 (5%) χ2 = 0.12 .94
Psychiatric and medical history
 Prior psychiatric hospitalization 103 (31%) 21 (24%) 52 (26%) 30 (68%) χ2 = 32.97 < .01
 Outpatient counseling 240 (72%) 62 (72%) 152 (75%) 26 (59%) χ2 = 4.48 < .11
 Prior head injury 44 (13%) 9 (10%) 29 (14%) 6 (13%) χ2 = 0.78 .68
 Prior antipsychotic medications 112 (34%) 23 (27%) 63 (31%) 26 (59%) χ2 = 15.32 < .01

Note: The p values derive from 2 degrees of freedom tests. CHR, clinically higher risk; CLR, clinically lower risk; EFEP, early first-episode psychosis; PTSD, posttraumatic stress disorder; SCID-IV, Structured Clinical Interview for DSM-IV Axis I Disorders, Clinician Version IV.