Manual for the Benzodiazepine Dependence Questionnaire (BDEPQ)

DEVELOPMENT 15
Table 4: Comparison of sample and poulation estimates of benzodiazepine use
Population Sample
estimates
n = 688984 n = 267
Reason for using benzodiazepines
Day time sedation only 18.0% 9.6%
Night time sedation only 73.3% 71.2%
Both Day and night sedation 8.7% 19.2%
Frequency of use
Every day ornight(6to7days/nights per week) 52.1% 73.4%
Most days or nights (4 to 5 days/nights per week) 6.0% 7.1%
One to three days or nights per week 17.8% 11.2%
Less than once a week 24.1% 6.4%
Duration of use
Less than one month 4.2% 0.7%
One month to less than three months 4.3% 3.0%
Three months to less than six months 3.0% 4.9%
Six months or more 64.4% 83.9%
Not known 24.1% 7.5%
Benzodiazepines used
temazepam 27.7% 40.1%
oxazepam 28.4% 24.0%
diazepam 21.9% 19.1%
nitrazepam 20.9% 16.9%
unitrazepam 2.8% 8.2%
alprazolam 1.7% 3.7%
lorazepam 1.3% 3.4%
other BZDs 0.2% 2.2%
chlordiazepoxide 0.9% 1.5%
bromazepam 1.3% 1.1%
clorazepate 0.5% 0
urazepam 0.3% 0
clobazam 0.2% 0