OR, odds ratio; CI, confidence interval.

*OR was adjusted using the significant variables shown in Table 1: sex, age, and history of anaphylaxis to causative foods.

Odds ratio of “Age” per one-year increase

Risk factors for treatment-required accidental ingestion were examined among children with accidental ingestion between April 2015 and February 2016. All children with treatment-required accidental ingestion received treatment at a clinic or hospital.