KRT88P and infection: Immunity due to natural infection (i.e., HBsAg−/anti-HBs+/anti-HBc+), immunity due to vaccination (HBsAg-/anti-HBs+/anti-HBc-), and the positivity for anti-HBc alone (HBsAg−/anti-HBs−/anti-HBc+) were not significantly associated with NHL risk.