Association of benzodiazepine and Z-drug use with the risk of hospitalisation for fall-related injuries among older people: a nationwide nested case–control study in Taiwan

Table 3 Unadjusted and adjusted odds ratio of BZD and Z-drug usage in the elderly patients hospitalised for fall injuries according to dose levels among current users

	Cases		Controls		Unadjusted		Adjusted^ab
	n = 2238	%	n = 8645	%	OR	95% CI	OR	95% CI
BZDs
High	237	10.6	651	7.5	1.53	1.31–1.80	1.75	1.47–2.08
Medium	196	8.8	639	7.4	1.30	1.10–1.54	1.54	1.28–1.85
Low	239	10.7	854	9.9	1.17	1.00–1.37	1.27	1.08–1.50
Non-users	1566	70.0	6501	75.2	1		1
Z-drugs
High	203	9.1	609	7.0	1.34	1.13–1.58	1.37	1.14–1.64
Medium	19	0.9	96	1.1	0.78	0.48–1.28	0.77	0.46–1.28
Low	2	0.1	16	0.2	0.50	0.11–2.16	0.46	0.10–2.08
Non-users	2014	90.0	7924	91.7	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

ISSN: 1471-2318