Sum of symptom frequencies (PHQ9, non-communicative)

Reminder: DUA and VRDC access needs to be extended or renewed annually. Read more.

This variable is contained in the following files:

SAS Name

SUM_PHQ9_NC

PHQ-9 OV total score: Add values from E4a2, E4b2, E4c2, E4d2, E4e2, E4f2, E4g2, E4h2, E4i2, E4j2