Table 7: Adverse reactions reported in VAERS for sulfate versus hydroxide in age-matched samples, and the likelihood that the contrasts observed in these distributions could have occurred by chance (p < 0.05).

ConditionSulfateHydroxidep value

Swelling221026650.0066
Cellulitis4456170.020
Pain6228150.020
Fever203222960.034
Injection site reaction3935200.038
Injection site swelling7330.045