. 2014 Aug 3;5(Suppl 1):S60–S68. doi: 10.1016/j.jceh.2014.06.007

Table 2.

Risk of Developing Gross Overt HE or Dying, Based on EEG Spectral Analysis Classification (Modified from Amodio et al¹⁰).

	Episodes of confusion or coma		Mortality
Grade	Rate^a	Odds ratio (CI_95%)	Rate^a	Odds ratio (CI_95%)
0	33	1	13	1
1	72	2.0 (1.06–3.65)	41	4.3 (1.8–10.1)
2–3	139	3.5 (1.9–6.6)	57	6.3 (2.6–15.1)

Events × 100 patients/year.