Safety and efficacy of hepatitis A vaccine in children with chronic liver disease

Table 3 Comparison of the mean value of seroconversion (Co/S) between patients and controls

Time	Patients (n = 11)		Controls (n = 13)
	Range	Mean ± SD	Range	Mean ± SD
1 mo after the 1st dose of HA vaccine	0.6-1.6	1.1 ± 0.4	1.5-3.6	2.5 ± 0.97
6 mo after the 1st dose of HA vaccine	0.9-4.8	3 ± 1.3	2.3-6.9	4.7 ± 1.8
1 mo after the 2nd (booster) dose of HA vaccine	3.2-5.3	4.6 ± 0.8	4.2-5.7	4.9 ± 0.7
P	bP = 0.003		aP = 0.02

^aP = 0.02 within controls by Friedman test;

^bP = 0.003 within patients by Friedman test.