Table 3.

Association of hospitalization for sepsis or septicemia in non-overlapping time intervals with risk of ischemic and hemorrhagic stroke, based on case-crossover analysis (using dataset 1^**)

Dataset 1	Ischemic Stroke		Hemorrhagic Stroke
	OR	95% CI	OR	95% CI
Hospitalization for sepsis/septicemia 0–15 days before stroke	28.4	20.0–40.1	12.1	7.54–19.4
Hospitalization for sepsis/septicemia 16–30 days before stroke	4.00	2.86–5.60	8.42	5.82–12.2
Hospitalization for sepsis/septicemia 31–90 days before stroke	2.53	2.07–3.09	5.48	4.21–7.13
Hospitalization for sepsis/septicemia 91–180 days before stroke	2.46	2.03–2.99	4.79	3.87–5.92
Hospitalization for sepsis/septicemia 181–365 days before stroke	2.59	2.20–3.06	3.92	3.29–4.69

OR indicates odds ratio; CI, confidence interval.

^*All p-values were < 0.0001

^**Dataset 1: In the first dataset all hospital admissions in which both stroke and sepsis were present on arrival were deleted.