Table 2.
Incidence of acute mastoiditis in Kuyavian-Pomeranian Region of Poland between the years 2001–2015. We have observed statistically significant (p < 0.05; the Chi-Square Test was used) increase in the rate of incidence during the last years.
| Year | Number of children in the region | Hospital – number of children with AM | Region – number of children with AM | Incidence per 100,000 children | Average annual incidence in the region |
|---|---|---|---|---|---|
| 2015 | 378,825 | 12 | 15 | 3.959612 | 1.863559223 ≈ 1.86 |
| 2014 | 383,177 | 7 | 8 | 2.087808 | |
| 2013 | 387,933 | 3 | 6 | 1.546659 | |
| 2012 | 393,346 | 5 | 10 | 2.542291 | |
| 2011 | 399,592 | 2 | 9 | 2.252297 | |
| 2010 | 406,742 | 7 | 10 | 2.458561 | |
| 2009 | 406,397 | 4 | 5 | 1.230324 | |
| 2008 | 413,722 | 2 | 5 | 1.208541 | |
| 2007 | 421,767 | 6 | 7 | 1.659684 | |
| 2006 | 431,113 | 5 | 7 | 1.623704 | |
| 2005 | 441,718 | 3 | 5 | 1.131944 | |
| 2004 | 453,662 | 1 | 3 | 0.661285 | |
| 2003 | 467,670 | 2 | No data | No data | |
| 2002 | 484,870 | 3 | No data | No data | |
| 2001 | 503,071 | 3 | No data | No data |