Researchers from the Oxford University in UK and University of Cape Town in South Africa conducted a study on over 1300 adults with high blood pressure in the Cape Town area.

They compared text message reminders and interactive text messaging to a control group receiving standard care.

Patients were randomly split into three equal-sized groups. All patients received written information about high blood pressure and healthy living.
Health workers used mobile phones linked to blood pressure measuring devices to collect health information about patients, and text messaging was managed automatically.

After twelve months, all three groups had reduced blood pressure. However, those who had received text messages had a slightly greater reduction in their blood pressure and were more likely to have achieved a controlled blood pressure.

Those who had had reminders were also more likely to have taken their medicine at least 80 percent of the time – almost two thirds of those getting information messages reached that standard compared to just under half of those receiving standard care.


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