Year | Background population | IPF | ||||
VTE absent n | VTE present n | VTE present % | VTE absent n | VTE present n | VTE present % | |
1988 | 1831827 | 25295 | 1.36 | 6762 | 136 | 1.97 |
1989 | 1805702 | 24821 | 1.36 | 7321 | 151 | 2.02 |
1990 | 1797405 | 23709 | 1.30 | 7432 | 147 | 1.94 |
1991 | 1811245 | 22855 | 1.25 | 7839 | 133 | 1.67 |
1992 | 1813359 | 22095 | 1.25 | 8240 | 154 | 1.83 |
1993 | 1888488 | 21468 | 1.12 | 8661 | 135 | 1.53 |
1994 | 1898205 | 20944 | 1.09 | 9086 | 131 | 1.42 |
1995 | 1926144 | 21740 | 1.12 | 9494 | 149 | 1.55 |
1996 | 1924032 | 21218 | 1.09 | 10059 | 157 | 1.54 |
1997 | 1918141 | 20659 | 1.07 | 10719 | 148 | 1.36 |
1998 | 1932077 | 21203 | 1.09 | 11210 | 190 | 1.67 |
1999 | 1973552 | 27218 | 1.36 | 11585 | 220 | 1.86 |
2000 | 1984046 | 28100 | 1.40 | 12347 | 245 | 1.95 |
2001 | 1993694 | 28929 | 1.43 | 12664 | 235 | 1.82 |
2002 | 2015339 | 29426 | 1.44 | 13268 | 245 | 1.81 |
2003 | 2016149 | 30276 | 1.48 | 13639 | 251 | 1.81 |
2004 | 1972413 | 29228 | 1.46 | 13572 | 239 | 1.73 |
2005 | 2011508 | 30195 | 1.48 | 13736 | 223 | 1.60 |
2006 | 1997942 | 30670 | 1.51 | 13686 | 261 | 1.87 |
2007 | 1995092 | 30880 | 1.52 | 13856 | 265 | 1.88 |
Total | 38506360 | 510929 | 1.31¶ | 215176 | 3815 | 1.74¶ |
#: decedents with VTE were defined as those with VTE mentioned on their death certificates as contributing to death; ¶: overall OR 1.34, 95% CI 1.29–1.38; p<0.0001 for association between IPF and VTE.