Addison and Aiden were the most popular names given to newborns by Kansas parents in 2007, according to state?s Center for Health and Environmental Statistics.

For the second consecutive year, the top name for girls and for boys is uni-gender.

Last year was the first time since the state began compiling a list that the top name for both girls and boys was uni-gender.

Emma, Madison, Ava and Hailey join Addison in the top five most popular girls? names list.

New parents didn?t stray much from past naming habits, with only one new entry in the girls? top 10: Isabella.

New names in the top 25 were Avery, which entered the top 25 for the first time, Alyssa and Chloe. Kaylee is the girl?s name with the most spelling variation (31).

Aiden occupies the top spot on the boys? list for the fourth year running. Jacob, in the top spot for nine years until 2004, remained at No. 5, behind Kaden, Ethan and Jackson.

Kaden was the boy?s name with the most spelling variation (28), and in 2007 parents preferred Kaden spelled with ?K.?

The trend for Celtic and biblical boys? names continues with names such as Aiden, Brayden, Conner, Gavin, Kaden, Logan, Caleb, Daniel, Ethan, Isaac, Jacob, Joshua, Joseph, Noah and Samuel.

The only new boy?s name in the top 10 was Christopher, and of the five new names that entered the top 25, Gavin was the only first timer.

The Center for Health and Environmental Statistics is a division of the Kansas Department of Health and Environment. The lists are derived from birth certificate information that the Center?s Office of Vital Statistics keeps on file.

The list contains names with the same pronunciation, but different spellings, to give a more accurate view of name popularity.