G6PD and Allergy: The common medical conditions were ranked as follows: allergy (6.7%), asthma (4.1%), hernia (1.5%), Glucose-6-phosphate dehydrogenase deficiency (G6PD, 1.3%), heart disease (0.8%), renal disease (0.6%), tuberculosis (0.6%), hepatitis (0.4%), and epilepsy (0.3%).