Table 1.

Predicted Outcome After HAV Infection

Parameter	Predicted Outcome
	Children (<5 yr)	Adults
Inapparent infection	80%‐95%	10%‐25%
Anicteric or icteric disease	5%‐20%	75%‐90%a
Complete recovery	≥99%	≥98%
Chronic disease	None	None
Mortality rate (hospitalized cases)
<30 yr	0.23%
30‐49 yr	0.3%‐0.6%
>49 yr	1.8%‐2.1%
Fuliminant hepatitis	<1%
Relapsing hepatitis	3%‐20%
Prolonged cholestasis	5%

^aMore than 70% of adult clinical cases are icteric.