Associated mortality risk of atypical antipsychotic medication in individuals with dementia

Table 1 Demographic information for the two study cohorts

Demographic	Category	Total	Medication group	Comparison group
Number of patients		1480	587	893
Age (mean ± SD)		82.6 ± 8.1	81.7 ± 8.4	83.3 ± 7.9
Gender	Male	714 (48.2%)	294 (50.1%)	420 (47.0%)
	Female	766 (51.8%)	293 (49.9%)	473 (53.0%)
	Other/NA	0	0	0
Ethnicity	White-British	1033 (69.8%)	451 (76.8%)	582 (65.2%)
	White-Irish	5 (< 1%)	4 (< 1%)	1 (< 1%)
	White-Any other	17 (1.1%)	6 (1.0%)	11 (1.2%)
	Mixed-White and Asian	1 (< 1%)	1 (< 1%)	0 (< 1%)
	Asian-Indian	6 (< 1%)	2 (< 1%)	4 (< 1%)
	Asian-Bangladeshi	1 (< 1%)	0 (< 1%)	1 (< 1%)
	Asian-Any other	10 (< 1%)	5 (< 1%)	5 (< 1%)
	Black-Caribbean	2 (< 1%)	1 (< 1%)	1 (< 1%)
	Black-African	2 (< 1%)	1 (< 1%)	1 (< 1%)
	Any other ethnic group	2 (< 1%)	2 (< 1%)	0 (< 1%)
	Not stated/NA	401 (27.1%)	114 (19.4%)	287 (32.1%)
MMSE	Number of patients with MMSE	608 (41.1%)	226 (38.5%)	382 (42.8%)
	Number of patients without MMSE	876 (58.9%)	361 (61.5%)	511 (57.2%)
MMSE score	20-30	369 (60.7%)	101 (44.7%)	268 (70.2%)
	10-19	199 (23.7%)	98 (43.4%)	101 (26.4%)
	< 10	40 (6.56%)	27 (11.9%)	13 (3.4%)

The percentages listed are of the column totals (number of patients) for the respective group. The only exception is the Mini Mental State Examination (MMSE) Score percentages, which are a proportion of the ‘number of patients with MMSE’ count. The ‘Ethnicity-Asian’ and ‘Ethnicity-Black’ groups include the Asian British and Black British ethnicity groups. MMSE: Mini Mental State Examination.