IA patients | Matched controls | |
---|---|---|
N (ratio 1:2) | 3,354 | 6,708 |
Sex | ||
Female | 63.7% | 63.7% |
Age, years | ||
Mean (sd) | 55 (15) | 55 (15) |
Follow-up, years | ||
Median (iqr) | 2.8 (1.7-4.9) | 2.7 (1.6-4.9) |
Number of chronic diseases at inclusion* | ||
Median (iqr) | 1 (0–3) | 1 (0–2) |
Year of inclusion, | ||
2001 | <1% | <1% |
2002 | 16% | 16% |
2003 | 12% | 12% |
2004 | 9% | 9% |
2005 | 10% | 10% |
2006 | 10% | 10% |
2007 | 13% | 13% |
2008 | 11% | 11% |
2009 | 11% | 11% |
2010 | 9% | 9% |