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This study uses data from the National Longitudinal Survey of Children and Youth (NLSCY) to examine the relationship between late childbearing (at or after age 35) among first-time mothers in Canada and three facets of development: physical health, behaviour and cognitive development. The following research questions were addressed: do the developmental characteristics of children born to older mothers differ from those of children born to younger mothers? And do other factors, such as demographic characteristics and parenting practices, account for differences in child development by maternal age at birth? For this analysis, first-born children were identified from among all interviewed children whose year of birth was between 1998 and 2005.

The National Longitudinal Survey of Children and Youth (NLSCY), developed jointly by Human Resources Development Canada and Statistics Canada, is a comprehensive survey which follows the development of children in Canada and paints a picture of their lives. The survey monitors children's development and measures the incidence of various factors that influence their development, both positively and negatively.

The National Longitudinal Survey of Children and Youth (NLSCY) is a long-term research program (started in 1994) that will track a large sample of children over many years, enabling researchers to monitor children's well-being and development.

Not all the information collected for the first cycle of the National Longitudinal Survey of Children and Youth are included in this first microdata file. The second release will be in 1997.

The National Longitudinal Survey of Children and Youth (NLSCY), developed jointly by Human Resources Development Canada and Statistics Canada, is a comprehensive survey which follows the development of children in Canada and paints a picture of their lives. The survey monitors children's development and measures the incidence of various factors that influence their development, both positively and negatively.

This study uses data from the National Longitudinal Survey of Children and Youth (NLSCY) to examine the relationship between late childbearing (at or after age 35) among first-time mothers in Canada and three facets of development: physical health, behaviour and cognitive development. The following research questions were addressed: do the developmental characteristics of children born to older mothers differ from those of children born to younger mothers? And do other factors, such as demographic characteristics and parenting practices, account for differences in child development by maternal age at birth? For this analysis, first-born children were identified from among all interviewed children whose year of birth was between 1998 and 2005.

The National Longitudinal Survey of Children and Youth (NLSCY) is a long-term research program (started in 1994) that will track a large sample of children over many years, enabling researchers to monitor children's well-being and development.

Not all the information collected for the first cycle of the National Longitudinal Survey of Children and Youth are included in this first microdata file. The second release will be in 1997.