Sex Distribution of RIDs

The sex gap was larger for bacterial diseases in absolute terms, with male incidence at 76.16 per 100,000 versus 54.77 for females. The male excess in RID incidence is attributed to broader activity ranges and greater exposure to risk environments, though reporting bias and occupational exposure differences may also contribute. Statistically significant male excess was confirmed for tuberculosis, scarlet fever, influenza, mumps, and varicella, but not for pertussis, measles, or rubella. Overall RID incidence was significantly higher in males than in females for both bacterial and viral disease categories.