Table 6 Number of cases and controls by the year of birth
From: Epidemiology of canine mammary tumours on the Canary Archipelago in Spain
Year of birth | Control | Case |
|---|---|---|
2003 | 271 | 215 |
2004 | 354 | 221 |
2005 | 601 | 194 |
2006 | 945 | 235 |
2007 | 1470 | 246 |
2008 | 2274 | 215 |
2009 | 4182 | 173 |
2010 | 12,312 | 151 |
2011 | 19,064 | 94 |
2012 | 18,667 | 81 |
2013 | 18,960 | 27 |
Total | 79,100 | 1852 |