Table 1

Validity of remission by approximation in major depression

Validation Method

Reference Criteria

Remission by Approximation

Clinical Histories

N = 133

Positive

Negative


Positive

74

5

Negative

6

48


Statistics

Value (%)

95% CI


Validity of the measurement

Sensitivity

92.5

88.0 - 96.9

Specificity

90.6

85.6 - 95.6

Positive predictive value

93.7

89.6 - 97.8

Negative predictive value

88.9

83.6 - 94.2

False positives

7.5

3.0 - 11.9

False negatives

9.4

4.4 - 14.4


Reliability

Cronbach's alpha

90.6

85.6 - 95.6

Area under the curve

91.2

86.5 - 96.1


Concordance

McNemar test

58.1

49.7 - 66.5

Pearson correlation

82.8

73.1 - 92.5

Weighted kappa (Cohen)

82.8

73.1 - 92.6


Clinical utility

Positive Probability Ratio

9.8

---

Negative Probability Ratio

0.1

---


Reference criteria: Review of patients' histories. Significance: p < 0.001 in all cases. CI: confidence intervals

Sicras-Mainar et al. BMC Public Health 2010 10:64   doi:10.1186/1471-2458-10-64

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