Coin related inhalation and ingestion injuries, and characteristics of coins involved in inhalation and ingestion injuries, during January–March 2002 in comparison to January–March 1996–2001 in Greece (drachmas before 2002, Euros after 2002) and Denmark (same currency before and after 2002)
| Country | 1996–2001 per year | 2002 | RR | 95% CI | p value |
|---|---|---|---|---|---|
| Comparison between “prior to 2002” and 2002 for coins involved in inhalation and ingestion incidents through the Wilcoxon test. | |||||
| Mean values of the totality of the circulating coins are given in square brackets. | |||||
| Coin related incidents | |||||
| Greece | |||||
| All coins | 6.5 | 17 | 2.62 | 1.39 to 4.74 | 0.003 |
| Euro v drachma coins | 6.5 | 14 | 2.15 | 1.08 to 4.08 | 0.029 |
| Denmark (all coins are krone) | 6.5 | 4 | 0.62 | 0.16 to 1.71 | 0.49 |
| Coin characteristics | |||||
| Greece | |||||
| Mean diameter (mm) | 24.7 [25.0] | 19.8 [21.6] | 0.0001 | ||
| Mean weight (g) | 6.9 [7.1] | 4.4 [5.2] | 0.007 | ||
| Total circulation (million pieces) | 1780 | 1600 | |||
| Denmark | |||||
| Mean diameter (mm) | 19.7 [24.9] | 20.0 [24.9] | 0.67 | ||
| Mean weight (g) | 4.7 [7.4] | 4.2 [7.4] | 0.77 | ||
| Total circulation (million pieces) | 1790 | ~1990 | |||