Dear Statalists,

I have two sample (348 cases and 371 controls) matched by sex and age. Now I would like to do something with their finger length ratio (a numerical var). When I run -sdtest-, I found the sd is unequal between the two sample. For this case, should I use -ttest- to check the mean difference? (I found the option [, une] for -ttest- command, but my samples are paired so I'm not sure if I should choose the option or find another way)
Thank you!

Yue