The diffusion of modern contraception in norway and its consequences for the fertility pattern

The Norwegian Fertility Survey of 1977 shows that most of the population make adequate use of contraception. Only 7 per cent of those who did not desire to become pregnant dit not use birth control. The reduction in fertility and changes in the age-specific fertility pattern have not been as great as one would expect. The younger cohorts have not had changes in fertility as great as the changes in contraception would imply, whereas the older ones have had even greater changes. We conclude that changes in the age-specific fertility pattern have not been causally dependent on the contraceptive pattern