Zung Self-Rating Depression Scale (SDS): Measuring Severity

The Zung Self-Rating Depression Scale (SDS) is a classic tool for measuring depression levels. It helps clinicians track symptom severity effectively. This twenty-item questionnaire balances ten positive and ten negative statements to reduce response bias. It covers feelings plus physical signs of low mood quite clearly. Patients rate items on a simple one-to-four scale based on frequency. The questions look at key issues like sleep trouble, appetite changes, and irritability. This helps paint a full picture of how someone is coping with the ups and downs of daily life. Scoring is straightforward since raw totals convert to an index for easy interpretation. It is great for initial screening or checking progress over time in therapy. Doctors find it handy because it is quick to finish and gives reliable data for planning the next practical steps in patient care.