Terminally ill cancer patients who drew comfort from religion were far more likely to seek aggressive, life-prolonging care in the week before they died than were less religious patients and far more likely to want doctors to do everything possible to keep them alive, a study has found. The devout patients were three times as likely as less religious ones to be put on a mechanical ventilator to maintain breathing during the last week of life, and they were less likely to do any advance care planning, the analysis found.