Manual for the Benzodiazepine Dependence Questionnaire (BDEPQ)
Manual for the Benzodiazepine Dependence Questionnaire (BDEPQ)
Manual for the Benzodiazepine Dependence Questionnaire (BDEPQ)
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VALIDITY OF THE <strong>BDEPQ</strong> 37<br />
Table 9: Multitrait-multimethod matrix: Wave one and phone interview<br />
<strong>Dependence</strong> Anxiety Depression Neuroticism Pattern of BZD use<br />
<strong>BDEPQ</strong> BWSQ SRD DSM3R ICD10 BAI BDI EPQ-N Dose 1<br />
2 life Frequency Duration<br />
<strong>BDEPQ</strong> 0.92<br />
(187)<br />
BWSQ 0.61 0.90<br />
(171) (239)<br />
<strong>Dependence</strong> SRD 0.51 0.27 0.71<br />
(184) (233) (86)<br />
DSM3R 0.39 0.27 0.33 -<br />
(68) (82) (86)<br />
ICD10 0.37 0.40 0.28 0.50 -<br />
(68) (82) (86) (88)<br />
Anxiety BAI 0.56 0.54 0.23 0.34 0.11 0.88<br />
(179) (230) (241) (88) (88) (249)<br />
Depression BDI 0.50 0.55 0.16 0.20 0.13 0.52 0.84<br />
(187) (238) (254) (87) (87) (248) (247)<br />
Neuroticism EPQ-N 0.48 0.44 0.20 0.14 -0.00 0.53 0.59 0.88<br />
(181) (232) (244) (82) (82) (240) (250) (253)<br />
BZD 0.31 0.23 0.24 0.29 0.29 0.18 0.12 0.06 -<br />
dose (189) (241) (257) (88) (88) (251) (264) (253)<br />
Half- 0.04 -0.02 -0.16 0.01 -0.06 0.06 -0.00 0.04 -0.38 -<br />
Pattern of life (182) (233) (248) (88) (88) (243) (255) (244) (260)<br />
BZD use<br />
Frequency -0.25 -0.15 -0.50 -0.13 -0.05 -0.08 -0.07 -0.03 -0.22 0.15 -<br />
(188) (238) (256) (87) (87) (246) (259) (248) (264) (255)<br />
Duration 0.06 0.03 0.24 -0.11 -0.02 -0.07 -0.09 -0.06 -0.04 0.03 -0.26 -<br />
(188) (234) (252) (88) (88) (242) (259) (244) (259) (253) (258)<br />
Notes: The diagonal contains reliability coe cients which are coe cient alphas except <strong>for</strong> self-rated dependence which<br />
is a two to three week test-retest correlation. <strong>BDEPQ</strong> = <strong>Benzodiazepine</strong> <strong>Dependence</strong> <strong>Questionnaire</strong>, BWSQ =<br />
<strong>Benzodiazepine</strong> Withdrawal Symptom <strong>Questionnaire</strong>, SRD = Self-Rated <strong>Dependence</strong>, DSM3R = a current DSM3R<br />
diagnosis of <strong>Benzodiazepine</strong> <strong>Dependence</strong> made using <strong>the</strong> CIDI, ICD10 = a current ICD10 diagnosis of <strong>Benzodiazepine</strong><br />
<strong>Dependence</strong> made using <strong>the</strong> CIDI, BAI = Beck Anxiety Inventory, BDI = Beck Depression Inventory, EPQ-N =<br />
Neuroticism scale of <strong>the</strong> Eysenck Personality <strong>Questionnaire</strong>, Dose = high estimate of diazepam-equivalent dose of<br />
BZDs, Half-life = dose weighted average half-life of BZDs taken, Frequency = how often were BZD taken, and<br />
Duration = <strong>for</strong> how long were BZDs taken.