From: Infant mortality in the Flemish Region of Belgium 1999-2008: a time-to-event analysis
Year of birth | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 |
---|---|---|---|---|---|---|---|---|---|---|
Males | ||||||||||
N | 24 | 28 | 34 | 26 | 15 | 21 | 27 | 23 | 13 | 23 |
Mean | 171.8 | 200.8 | 190.4 | 170.1 | 186.3 | 190 | 185.1 | 157.3 | 193.4 | 188.7 |
k2 | 0.470 | 0.549 | 0.522 | 0.466 | 0.510 | 0.520 | 0.507 | 0.431 | 0.529 | 0.516 |
Females | ||||||||||
N | 24 | 26 | 11 | 13 | 17 | 12 | 18 | 14 | 11 | 10 |
Mean | 198.2 | 150.1 | 184.0 | 132.3 | 185.5 | 160.5 | 221.6 | 151.6 | 180.7 | 243.8 |
k2 | 0.542 | 0.411 | 0.504 | 0.362 | 0.508 | 0.439 | 0.607 | 0.415 | 0.494 | 0.667 |
Breslow chi-square statistic (males vs. females) | ||||||||||
P-value | 0.44 | 0.042 | 0.74 | 0.23 | 0.96 | 0.40 | 0.34 | 0.60 | 0.89 | 0.15 |