As we all know, three of anything makes a trend in journalism, and my trend alarm has just gone off concerning scary news about antidepressants. First, there was this review three weeks ago finding a “modest link” between antidepressants and cancer — though not in studies funded by the drug companies.

Then, author and former Globe staffer Alison Bass reported a week ago on her blog here that a researcher has found that serious flaws tended to skew the biggest study ever of antidepressants toward making the drugs appear more effective than they really are.

And now, Dr. Adam C. Urato, assistant professor of medicine at Tufts, has just sent over the latest: a paper in the current American Journal of Psychiatry that suggests that antidepressants increase the risk of stroke.