Table 2.

Unadjusted and adjusted odds ratios of BZD and Z-drug usage in the elderly patients hospitalised for fall injuries according to different type of exposure

	Cases		Controls		Unadjusted		Adjustedab
	n = 2238	%	n = 8645	%	OR	95% CI	OR	95% CI
BZDs
Current users	672	30.0	2144	24.8	1.18	1.06–1.32	1.32	1.17–1.50
Indeterminate users	160	7.2	879	10.2	0.69	0.57–0.83	0.75	0.62–0.91
Former users	295	13.2	1519	17.6	0.73	0.63–0.84	0.74	0.64–0.86
Non-users	1111	49.6	4103	47.5	1		1
Z-drugs
Current users	224	10.0	721	8.3	1.23	1.05–1.45	1.24	1.05–1.48
Indeterminate users	59	2.6	263	3.0	0.89	0.67–1.19	0.87	0.64–1.18
Former users	141	6.3	572	6.6	0.98	0.81–1.18	0.96	0.78–1.17
Non- users	1814	81.1	7089	82.0	1		1

^aAdjusted for dementia, Parkinson’s disease, cerebrovascular disease, diabetes, hypertension, ischemia heart disease, antipsychotics, antidepressants, anticonvulsants, thiazide diuretics, opioids, Charlson comorbidity index, and number of outpatient services in the 180 days before the index date

^bSignificant results (p<0.05) are in italicize