FIGURE 4

Seroconversion rate for anti-HBs in 14-year-old patients with CD and controls after hepatitis B mass immunization. Disease activity in patients with CD was monitored by EMA-TG2 antibodies. Patients are shown according to their EMA/anti-TG2 status in the year of vaccination. aP ≤ .01 versus untreated patients with CD; bP ≤ .001 versus untreated patients with CD.