Table 2

Some estimated factors from the model

Effect of gender, age and physician prescribed high amount of BZD
To level	Gender	Age	FBZDP
1	−0.008 (ns)	0.006	0.040
2	−0.146	0.007	0.262
3	−0.552	−0.021	0.127
Effect of first drug choice (compared to diazepam)
	Oxazepam	Alprazolam	Nitrazepam/flunitrazepam	Zopilone/zolpidem	Hydroxyzine/buspirone
1	0.146	0.014 (ns)	−0.046	0.032	−0.200
2	0.167	0.165 (ns)	0.515	0.465	−0.168
3	0.204	−0.010 (ns)	0.375	0.063 (ns)	−0.230 (ns)
Effect of other drugs
	Opioids/antialcohol/smoke cessation	Antidepressants/lithium	Antipsychotics	Antiasthmatics/COPD drugs	Cardiac drugs	Methotrexate/steroids
1	0.136	0.214	0.152	0.100	0.030	0.035
2	0.272	0.280	0.398	0.146	0.090	0.249
3	0.738	0.334	0.570	0.266	0.002 (ns)	0.194 (ns)
Effect of prescribers specialty (compared to no specialty)
	General practitioner	Internist	Psychiatrist	Surgeon	Another specialty
1	0.017	−0.108	−0.054	−0.136	−0.043
2	−0.048	0.200	0.178	0.003 (ns)	0.003 (ns)
3	−0.152	0.066 (ns)	−0.013 (ns)	−0.119 (ns)	−0.042 (ns)

ns indicates not significant, 5% level.
BZD, Benzodiazepine; COPD, chronic obstructive pulmonary disease; FBZDP, Frequent BZD prescriber