Stroke survivors do better if they have spiritual or religious beliefs, according to a study

But they did this 3-7 days after. That's not enough time for survivors to realize that their beliefs/prayers are not helping their recovery. It may help their depression initially but will the boomerang effect hit later when they don't recover when their prayers are not answered? Bad research design.
http://www.tele-management.ca/2013/08/stroke-survivors-do-better-if-they-have-spiritual-or-religious-beliefs-according-to-a-study/
one paragraph here rest at link.
They interviewed 132 consecutive stroke survivors and assessed their level on the Hospital Anxiety and Depression Scale. This showed that between three and seven days after being admitted to hospital for a stroke, 26 per cent had high anxiety levels, 14 per cent had high depression levels and eight per cent had high levels of both. Six months later, 16 per cent had high anxiety and 12 per cent had high depression levels.