Treament options for Atrial Fibrillation

I found an article on treatment options for Artial Fibrillation while I waited to see an eye doctor at Eye Center of Northorn Colorado office.  According to doctor Arnold Pfahnl, the author of article, four options are avaliable to treat Atrial Fibrillation.  These options are:

1. Medication. Two types of medication, one use to control heart rate, the other maintain the normal rythm and keep artial fibrillation from happening.
2. Therapies, abnormal breathing at night or fixing a leaky heart valve.
3. Cardioversion. Only apply for someone who continously experiences artrial fibrillation.  This option is the use of an electric shock to restore the normal heart rhythm.
4. Raiofrequency ablation. This option is used more often because it contructs a burst of radiofrequency energy through a catheter to destroy the tissues the trigger the abnormal rhythm. The energy bursts are a few hundred strategically placed burns on the tissue. Two procedure can be done for this option, one the patient is under general anesthesia, it takes about three to four hours to complete, the other is done in conjuntion with open heart surgery to repair any heart problem.

Few interesting comments on the article that caughted my attention immediately, one is "about 2.2 million Americans live with atrial fibrillation", and others are " Gendermen are slightly more likely to develop atrial fibrillation than women." "Women who are diagnosed carry an increased long-term risk of premature death."  My questions are: why more men are sick with this disease than women?   Why women would be premature death if they are diagnosed with this disease?

Sources:
Treatment options for atrial fibrillation article: http://issuu.com/reporterherald/docs/healthline_sept16

http://www.med.umich.edu/cvc/services/site_electrophys/Treatment%20of%20Atrial%20Fibrillation.pdf