Table 4. Association between preadmission antipsychotic medication use and 30-day mortality in acute stroke patients according to prescription period.

Prescription period (months before admission for stroke)		Mortality rate ratio* (95% CI)
Overall	Current (0–3 months)	1.41 (1.28–1.54)
	Recent (4–12 months)	1.16 (0.98–1.38)
	Former (12+ months)	1.03 (0.95–1.12)
	Never	1.00 (reference)

Adjusted for gender, former stroke, pre-stroke drug use (lipid-lowering drugs, antihypertensive drugs, antidiabetic drugs, platelet inhibitors), education level, age group, year of admission, and modified Charlson’s index (cerebrovascular disorders excluded).