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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: J Clin Exp Neuropsychol. 2009 Nov 24;32(5):474–480. doi: 10.1080/13803390903201769

Table 1.

Baseline Demographic, Psychiatric and Medical Characteristics of Study Patients (N = 103)

All
Patients
N = 103
Modafinil
Group
N = 59
Placebo
Group
N = 44
t or
X2
p
Demographic
Age, mean (SD) 46 (9) 46 (9) 46 (8) .165 .869
Ethnicity, number (%)
  Black 41 (40%) 22 (37%) 19 (43%)
  White (non-Hispanic) 35 (34%) 21 (36%) 14 (32%)
.444 .931
  Hispanic 25 (24%) 15 (25%) 10 (23%)
  Other 2 (2%) 1 (2%) 1 (2%)
Gender, number (%)
  Men 88 (85%) 51 (86%) 37 (84%)
.112 .738
  Women 15 (15%) 8 (14%) 7 (16%)
Years Education, mean (SD) 14 (3) 14 (3) 14 (3) −.092 .927
Work Status, number (%)
  Full time 14 (14%) 10 (17%) 4 (9%)
  Part time 16 (16%) 12 (20%) 4 (9%) 4.496 .106
  Unemployed 73 (71%) 37 (63%) 36 (82%)
Psychiatric
DSM-IV depression diagnosis1, number, (%) 41 (40%) 26 (44%) 15 (34%) 1.047 .306
Taking antidepressant medication, number (%) 30 (29%) 15 (25%) 15 (34%) .917 .338
Past drug use history, number, (%) 52 (51%) 31 (53%) 21 (48%) .234 .629
21.1 - .079
Beck Depression Inventory-II, mean (SD) 19.6 (9.7) (10.1) 17.7 (8.9) 1.776
Fatigue Severity Scale, mean (SD) 51.5 (6.1) 51.7 (5.9) 51.2 (6.4) −.403 .688
Cognitive Failures Questionnaire 47 (17) 48 (18) 45 (15) −.633 .528
Neuropsychological Test Battery Outlier2, .319
number (%) 48 (47%) 25 (42%) 23 (52%) .993
Medical
Months since testing HIV+, mean (SD) 145 (69) 136 (70) 157 (65) 1.540 .127
AIDS Diagnosis, number, (%) 6 (64%) 39 (66%) 27 (61%) .246 .620
Taking antiretroviral therapy, number, (%) 93 (90%) 53 (90%) 40 (91%) .033 .855
Hepatitis C, number, (%) 21 (20%) 10 (17%) 11 (25%) 1.006 .316
CD4 cell count, mean (SD) 474 (253) 486 (250) 458 (258) −.560 .577
2.51 2.35 .438
Log10 Viral Load, mean (SD) 2.44(1.14) (1.16) (1.13) −.704
1

DSM-IV depression diagnosis of major depressive disorder in partial remission, minor depression, or dysthymia

2

Neuropsychological test battery outlier defined as 1 SD below average on 4+ tests or 2 SD’s on 2+ tests