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Table 6 Specificity: Percentage of cases with no diagnosis on the PHQ that similarly would receive no diagnosis on the SAS analysed by cut-off point

From: Norms for Zung’s Self-rating Anxiety Scale

Cut-off point

Clinical Sample (n = 78)

Community Sample (n = 178)

34

37.2

58.4

35

41.0

66.3

36

46.2

74.7

37

53.8

80.9

38

56.4

84.8

39

59.0

88.2

40

69.2

90.4

41

76.9

92.1

42

78.2

94.4

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BMC Psychiatry

ISSN: 1471-244X

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