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Table 2 Mean SDS scores for participants screening positive and negative for Depressive Disorders on the PHQ

From: Clarification of the cut-off score for Zung’s self-rating depression scale

SDS mean score (SD)

Clinical sample

Community sample

PHQ Positive Depressive Diagnosis

54.98 (7.25)

53.92 (6.91)

No PHQ Diagnosis

42.77 (9.87)

38.10 (9.45)