Complex sentence: The relationship between gender and suicide has been extensively researched by Western sociologists, given that males die much more often by means of suicide than do females, although reported suicide attempts are 3 times more common among females than males.
Split into simpler sentences: The relationship between gender and suicide has been extensively researched by Western sociologists. Statistics indicate that males die much more often by means of suicide than do females, however reported suicide attempts are 3 times more common among females than males.