Table 1 Age-interval of children by birth year with follow-up in 2008-2010
Birth year | Number of unique children entering into study | Follow-up in 2008-2010 | ||||
|---|---|---|---|---|---|---|
2001 | 650 | |||||
Age interval | 6/7 | 7/8 | 8/9 | 9/10 | ||
Person-years | 318 | 648 | 648 | 327 | ||
2002 | 634 | |||||
Age interval | 5/6 | 6/7 | 7/8 | 8/9 | ||
Person-years | 313 | 630 | 629 | 318 | ||
2003 | 645 | |||||
Age interval | 4/5 | 5/6 | 6/7 | 7/8 | ||
Person-years | 323 | 643 | 641 | 317 | ||
2004 | 609 | |||||
Age interval | 3/4 | 4/5 | 5/6 | 6/7 | ||
Person-years | 302 | 607 | 606 | 302 | ||
2005 | 606 | |||||
Age interval | 2/3 | 3/4 | 4/5 | 5/6 | ||
Person-years | 292 | 606 | 604 | 312 | ||
2006 | 575 | |||||
Age interval | 1/2 | 2/3 | 3/4 | 4/5 | ||
Person-years | 285 | 571 | 568 | 284 | ||
2007 | 650 | |||||
Age interval | 1/2 | 2/3 | 3/4 | |||
Person-years | 651 | 643 | 314 | |||
2008 | 611 | |||||
Age interval | 1/2 | 2/3 | ||||
Person-years | 612 | 303 | ||||
2009 | 607 | |||||
Age interval | 1/2 | |||||
Person-years | 297 | |||||