From: Changing trend? Sex ratios of children born to Indian immigrants in Norway revisited
Period | ||||
---|---|---|---|---|
1969-1986 | 1987-1996 | 1997-2005 | 2006-2012 | |
First order births | ||||
Male births/all births | 187/378 | 259/543 | 258/533 | 357/702 |
Percentage boys | 49.5 | 47.7 | 48.4 | 50.9 |
z | −0.735 | −1.707 | −1.365 | −0.268 |
Second order births | ||||
Male births/all births | 157/304 | 209/431 | 243/454 | 259/501 |
Percentage boys | 51.6 | 48.5 | 53.5 | 51.7 |
z | 0.099 | −1.191 | 0.923 | 0.151 |
Third order births | ||||
Male births/all births | 55/117 | 98/170 | 99/167 | 57/133 |
Percentage boys | 47.0 | 57.6 | 59.3 | 42.9 |
z | −0.942 | 1.640* | 2.048** | −1.962 |
Fourth order births | ||||
Male births/all births | 19/35 | 30/46 | 17/24 | 16/30 |
Percentage boys | 54.3 | 65.2 | 70.8 | 53.3 |
z | 0.346 | 1.880** | 1.909** | 0.216 |