Knowledge about Fertility in Croatia, Measured with the Croatian Version of the Cardiff Fertility Knowledge Scale (CFKS-Hr), in Relation to Attitudes toward Having a Child and Associated Factors in a Cross-Sectional Survey.

Background: Fertility is a crucial component of population maintenance and growth. A declining fertility trend has been observed over the past two decades, and it continues. The birth rate in the Republic of Croatia is continuously decreasing, which is insufficient to maintain its population.