Predictive factors associated with spontaneous passage of coins: A ten-year analysis of paediatric coin ingestion in Australia

Coin size, coin weight and age of the child appear to be predictors for both likelihood of ingestion and spontaneous passage in paediatric coin ingestion cases. A child with minimal symptoms, witnessed ingestion and radiographic identification of the coin in the lower oesophagus or more distal can often be safety observed for up to 24 h in anticipation of spontaneous passage.