Table 5 Screening accuracy of the PHQ-2* during pregnancy and postpartum using the EPDS as reference standard for at least probable minor depression

Positive

≥ 2

≥ 3

Positive

≥ 2

≥ 3

12

12

6

12

12

6

0

0

6

0

0

6

200

254

283

157

217

249

91

37

8

106

46

14

1.0

(0.76–1.0)

1.0

(0.76–1.0)

0.50

(0.25–0.75)

1.0

(0.76–1.0)

1.0

(0.76–1.0)

0.50

(0.25–0.75)

0.69

(0.63–0.74)

0.87

(0.83–0.91)

0.97

(0.95–0.99)

0.60

(0.54–0.65)

0.83

(0.78–0.87)

0.95

(0.91–0.97)

0.12

(0.07–0.19)

0.25

(0.15–0.38)

0.43

(0.21–0.67)

0.10

(0.06–0.17)

0.21

(0.12–0.33)

0.30

(0.15–0.52)

1.0

(0.98–1.0)

1.0

(0.99–1.0)

0.98

(0.96–0.99)

1.0

(0.98–1.0)

1.0

(0.98–1.0)

0.98

(0.95–0.99)

3.20

(2.70–3.79)

7.87

(5.82–10.63)

18.52

(7.49–44.17)

2.48

(2.14–2.87)

5.71

(4.40–7.43)

9.4

(4.39–20.12)

0

-

0

-

0.51

(0.29–0.91)

0

-

0

-

0.53

(0.30–0.93)

Positive

≥ 2

≥ 3

Positive

≥ 2

≥ 3

27

24

13

26

19

6

6

9

20

6

13

26

163

193

213

144

179

191

56

26

6

51

16

4

0.82

(0.66–0.91)

0.73

(0.56–0.85)

0.39

(0.25–0.56)

0.81

(0.65–0.91)

0.59

(0.42–0.75)

0.19

(0.09–0.35)

0.74

(0.68–0.80)

0.88

(0.83–0.92)

0.97

(0.94–0.99)

0.74

(0.67–0.80)

0.92

(0.87–0.95)

0.98

(0.95–0.99)

0.33

(0.23–0.43)

0.48

(0.35–0.62)

0.68

(0.46–0.85)

0.34

(0.24–0.45)

0.54

(0.38–0.70)

0.60

(0.31–0.83)

0.96

(0.93–0.98)

0.96

(0.92–0.98)

0.91

(0.87–0.94)

0.96

(0.92–0.98)

0.93

(0.89–0.96)

0.88

(0.83–0.92)

3.20

(2.43–4.22)

6.11

(4.04–9.30)

14.59

(5.87–35.21)

3.10

(2.33–4.15)

7.24

(4.18–12.54)

8.95

(2.73–30.61)

0.25

(0.12–0.51)

0.31

(0.18–0.54)

0.62

(0.47–0.82)

0.25

(0.12–0.53)

0.44

(0.29–0.67)

0.83

(0.70–0.98)