PHQ-9 Questionnaire

In the field of mobile health and psychology, one of the most common questionnaires that is used to screen for the presence of depression is the PHQ-9 questionnaire. This questionnaire does not DIAGNOSE depression. It is simply used to help determine the likelihood of having mild or severe depression for the purpose of seeking professional care from a mental health provider.
There are many published academic papers regarding this questionnaire. The classic reference is listed here:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1495268/

This mobile app provides a sample implementation of the classic PHQ-9 questionnaire. This app can be used by itself, or it can be used as part of a suite of apps that is used to do health screening or diagnostic support.

By itself, this mobile app does not collect or share any data with a server. But this app can be used together with ANOTHER mobile app that is designed to collect data and store it in a secure database as part of a clinical study.
As an example, the PHQ-9 questionnaire can be used together with the Diabetes Screener mobile app that provides database support and send data to a remote server. You can view the Diabetes Screener mobile app in this link:
https://play.google.com/store/apps/details?id=com.mobiletechnologylab.diabetes_screener&hl=en_US&gl=US

An example of how these apps can be used together is demonstrated in the following YouTube video (for the case of Pulmonary Screener):

https://www.youtube.com/watch?v=k4p5Uaq32FU

If you wish to use this mobile app as part of a clinical study using smart phone data collection, please contact our lab for more information.

Thank you.

Contact:
-- Rich Fletcher (fletcher@media.mit.edu)
MIT Mobile Technology Lab
Mechanical Engineering Dept.