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Table 2 Descriptive statistics for GHQ-12 items and summary scores (N = 1051)

From: The factor structure of the 12-item general health questionnaire (GHQ-12) in young Chinese civil servants

GHQ-12 items

Mean

SDa

Skewness

Kurtosis

Response frequencies (%)

0

1

2

3

1. Able to concentrate

2.10

1.05

−0.893

−0.484

13.6

10.3

29.0

47.1

2. Lost much sleep

1.99

1.05

−0.676

−0.791

13.2

15.6

29.9

41.3

3. Playing a useful part

1.94

1.13

−0.601

−1.084

17.2

15.2

23.9

43.7

4. Capable of making decisions

2.01

1.10

−0.709

−0.882

15.1

14.2

25.4

45.3

5. Under stress

1.85

1.06

−0.455

−1.032

14.7

20.1

30.5

34.7

6. Could not overcome difficulties

1.90

1.13

−0.548

−1.133

18.0

15.5

25.2

41.3

7. Enjoy your day-to-day activities

1.99

1.09

−0.658

−0.944

14.9

15.7

25.2

44.1

8. Face up to problems

2.02

1.12

−0.785

−0.816

17.3

9.6

26.6

46.4

9. Feeling unhappy and depressed

2.14

1.08

−0.939

−0.505

13.7

10.8

23.6

52.0

10. Losing confidence

1.50

1.17

0.008

−1.479

27.9

22.5

21.3

28.3

11. Thinking of self as worthless

2.12

1.08

−0.869

−0.662

13.3

13.4

21.2

52.0

12. Feeling reasonably happy

2.06

1.06

−0.813

−0.620

13.8

11.9

29.2

45.1

Mean GHQ-12 score

23.62

7.92

      
  1. a SD standard deviation
  2. A higher score indicates a worse situation