TABLE 2.

Age- and season-adjusted incidence ratio (IR) for first myocardial infarction and first stroke in periods after Streptococcus pneumoniae and respiratory viruses (combined) compared with baseline time

Time period after sample days	IR for S. pneumoniae (95% CI)	p-value	IR for respiratory viruses (95% CI)	p-value
Outcome: myocardial infarction#
1–3	5.98 (2.47–14.4)	<0.001	5.59 (1.77–17.6)	0.003
4–7	3.79 (1.41–10.1)	0.008	3.00 (0.74–12.1)	0.12
8–14	1.65 (0.53–5.15)	0.38	1.00 (0.14–7.15)	0.99
15–28	2.04 (0.96–4.31)	0.06	2.12 (0.79–5.70)	0.13
Baseline	1.00		1.00
Outcome: stroke¶
1–3	12.3 (5.48–27.7)	<0.001	6.79 (1.67–27.5)	0.007
4–7	8.23 (3.39–19.9)	<0.001	5.43 (1.34–21.9)	<0.001
8–14	4.90 (2.02–11.8)	<0.001	5.01 (1.59–15.7)	<0.001
15–28	4.09 (2.02–8.27)	<0.001	4.02 (1.62–9.95)	<0.001
Baseline	1.00		1.00

^#: n=1227; ^¶: n=762.