In November 2017, we commented that Apple launched an application for Watch in order to carry out cardiac studies.

The app collected data on irregular heart rhythms – in addition to being able to notify users with possible atrial fibrillation (atrial fibrillation, or AFib). If the person was notified of any irregularity in their beats, they could receive a free consultation (by video) on their iPhone, performed by a medical professional in the study – in partnership with Stanford University School of Medicine.
Last August, the entry of new participants was closed and, at the end of January, everything was properly closed. Now, Apple and Stanford University School of Medicine have released the results of what was the largest study of its kind, involving more than 400,000 participants from all 50 states over a period of 8 months.
“We are proud to work with the Stanford University School of Medicine as they conduct this important research and look forward to learning more about the impact of Apple Watch on the medical community,” said Jeff Williams, Apple COO. “We hope that consumers will continue to gain useful and active information about heart health through the Apple Watch.”
The findings were presented at the American University of Cardiology’s 68th Scientific Session and Annual Exposition, and the study results showed that 0.5% of the more than 400,000 participants received an irregular heart rate notification, illustrating the resource’s ability to provide important information on the health of the user – without unnecessarily burdening the doctor’s agenda. Many participants sought medical advice after notification of an irregular pace, using the information to have more meaningful conversations with their doctors.
“As doctors, we are always trying to find ways to provide patients with health information that is meaningful to them, for individualized care,” said Sumbul Desai, doctor and vice president of health at Apple. “Seeing medical research reflect what we are hearing from consumers is positive and we are excited to see Apple Watch helping even more consumers in the future, while collaborating with the medical community for additional research.”
For those interested, the complete survey was published here by Stanford.
Update Mar 18, 2019 at 16:30
In an interview with Men’s Health, Dr. Desai detailed the study a little more.
In people under 40, only 0.16% of participants received notifications; in people over 65, the number rose to 3%. She also explained that, for the user to receive notification in the study, it was necessary to detect five instances of irregular heart rhythm.
The doctor made it clear, however, that the Apple Watch cannot officially diagnose or filter patients. The results presented by the watch are intended to be just a starting point for an interaction with the doctor.

Apple Watch Series 4
in Apple
Cash price: from R $ 3,599.10Installed price: up to 12x R $ 333.25Sizes: 40mm or 44mmMaterials: aluminum or stainless steelFeatures: GPS or GPS + CellularColors: diverseLaunch: September 2018
