In some population studies, women outnumber men by 2:1 with depression.
Other series have the gap smaller, but women still outnumber men. Women are susceptible to a wider array of potential depressogenic events than men: such as pms, pmdd, postpartum depression
. If you count these conditions the ratio is close to 2:1 females to males. See http://www.Mayoclinic.Com/health/depression/mh00035.