Prayers Don't Help Heart Surgery Patients; Some Fare Worse When Prayed For
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The 1,802 participants were divided into three groups of about 600 each, with a mean age of about 64 years. One group received no prayers. A second group received prayers after being told that they may or may not be prayed for. The third group was informed that others would pray for them for 14 days starting on the night before their surgery.
The prayers came from three Christian groups, two Catholic, and one Protestant. The investigators report that, "We were unable to locate other Christian, Jewish, or non-Christian [groups] that could receive the daily prayer list required for the study." Such lists provided the first name and last initial of the patients.
The intercessors said a standard prayer "for successful surgery with a quick, healthy recovery and no complications." This system provides a practical way to conduct the experiment, but limits the results to one type of prayer.
There were all kinds of complications from the surgeries, including 197 cardiac complications for the group who knew they were receiving prayers versus 187 and 158 in the other two groups. These and other complications occurred in 59 percent of those who were prayed for, compared to 51 percent of those who received no prayers, and 52 percent in the group who received prayers but didn't know it.
Deaths during the 30 days after surgery were similar across groups, 13 and 16 in the prayed-for, 14 in the no-pray group.
The big unanswered question is why there was an excess of complications in patients who knew all those people were praying for them. The researchers admit they have "no clear explanation." To find out, they say, "will require additional study."