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Table 3 Sensitivity, specificity, predictive values and efficiency outcomes for different cut-off scores

From: Validation of the PHQ-9 as a screening instrument for depression in diabetes patients in specialized outpatient clinics

 

Score ≥8

Score ≥9

Score ≥10

Score ≥11

Score ≥12

Occurrence

N = 99 (50.3%)

N = 95 (48.2%)

N = 91 (46.2%)

N = 71 (36.0%)

N = 60 (30.5%)

Sensitivity

91.9%

91.9%

91.9%

81.1%

75.7%

Specificity

59.4%

61.9%

64.4%

74.4%

80.0%

PV (pos. t.)

96.9%

97.1%

97.2%

94.4%

93.4%

PV (neg. t.)

34.3%

35.8%

37.4%

37.4%

46.7%

Efficiency

49.8%

51.8%

53.8%

63.9%

69.5%

  1. (Abbreviations: PV, predictive value; neg. t, negative test results; pos. t., positive test results)
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BMC Health Services Research

ISSN: 1472-6963

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