They analyzed the behaviors of fathers and mothers from the first trimester of fetuses to the first year of babies.
Their results showed that 10.4% of fathers became depressed during the postpartum period. The average percentage of men depressed is only 4.8%.
And, that father-depression percentage went up to 25.6% during the worst time of father depression, from three to six months after babies are born.
The researchers also found that the problem is worse in the United States than it is in Australia, Europe, South America, and China.
On average, depression in fathers stands at 14.1% in the United States, but only 8.2% throughout the rest of the world (as studied by the researchers).
Page three concludes.