Table 3.

Incidence rates and relative risks of ADHD for the controls compared with brain infections cohort.

	Event	IR (%)	RR (95% CI)	p
Controls	8	2.73	Reference
All brain infections group	6	4.12	1.51 (0.53–4.27)	0.56
Brain infections at (yr)
0–2	3	2.06	0.79 (0.19–3.24)	0.99
2–5	2	1.37	5.93 (0.90–38.9)	0.99
5–10	1	0.68	3.93 (0.26–59.5)	0.36
Brain infections with different pathogens
Enterovirus	5	3.44	2.34 (0.78-6.95)	0.16
Others	1	0.68	1.52(0.198-11.6)	0.51

IR, incidence rate; RR, risk ratio; yr, year; -, No event; N/A: not available.