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Table 2 Frequency of SOMS-2 symptoms (%), discriminative power (LR+) and correlation with SOMS-2 full scale

From: Assessing medically unexplained symptoms: evaluation of a shortened version of the SOMS for use in primary care

  

SOMS-2 self reported

SOMS-2 FCSE

 
 

Symptoms

(%)

Positive Likelihood )

ratio (95% CI)

(%)

Positive Likelihood

ratio (95% CI)

rpbi

1

Headaches

21.6

1.54

(0.8-2.7)

31.7

2.72

(1.7-4.2)

0.31

2

Pain in the stomach

6.6

2.30

(0.7-7.3)

18.6

4.70

(2.3-9.6)

0.37

4

Joint Pain

6.0

2.90

(0.8-9.8)

9.6

3.21

(1.2-8.4)

0.24

5

Pain in the legs and/or arms

11.4

2.65

(1.1-6.2)

12.0

2.36

(1.0-5.4)

0.21

6

Chest Pain

7.2

3.86

(1.2-12)

13.2

5.15

(2.1-12)

0.33

8

Pain during sexual intercourse

4.8

5.79

(1.2-28)

7.2

5.79

(1.6-20)

0.22

10

Nausea

5.4

2.41

(0.7-8.6)

10.2

30.80

(4.2-227)

0.23

11

Bloating

15.6

4.34

(2.0-9.4)

14.4

5.79

(2.4-14)

0.45

12

Discomfort in the area around the heart

5.4

6.75

(1.5-31)

10.2

6.27

(2.1-18)

0.36

13

Vomiting (pregnancy excluded)

3.0

5|57

 

7.2

21.20

(2.8-160)

0.32

14

Bringing swallowed food up again

5.4

15.40

(1.9-120)

9.0

27.10

(3.6-200)

0.37

15

Hiccough, or burning sensations in chest or stomach

6.6

5.15

(1.4-19)

12.0

5.79

(2.2-15)

0.43

22

Frequent urination

7.2

5.79

(1.6-20)

6.6

5.15

(1.4-18)

0.28

24

Strong heart pounding

8.4

11.58

(2.7-50)

18.0

9.65

(3.9-24)

0.54

25

Stomach discomfort or churning feeling in the stomach

13.8

2.51

(1.2-5.4)

23.4

3.86

(2.2-6.9)

0.39

26

Sweating (hot or cold)

12.0

4.50

(1.8-11)

14.4

7.33

(2.9-18)

0.45

27

Flushing or blushing

6.6

8.68

(1.9-39)

4.8

5.79

(1.2-27)

0.28

28

Breathlessness (without exertion)

3.6

9.65

(1.2-80)

11.4

7.24

(2.5-21)

0.33

29

Painful breathing or hyperventilation

2.4

5.79

(0.6-54)

6.0

10|57

 

0.38

30

Excessive tiredness or mild exertion

17.4

4.29

(2.1-8.8)

19.8

5.15

(2.5-10)

0.40

31

Blotchiness or discoloration of the skin

4.8

3.21

(0.8-13)

4.2

11.58

(1.4-93)

0.26

32

Sexual indifference (loss of libido)

7.8

23.20

(3.1-174)

10.8

15.43

(3.7-65)

0.48

34

Impaired coordination or balance

5.4

3.86

(1.0-15)

7.8

6.43

(1.8-22)

0.38

35

Paralysis or localized weakness

2.4

4|57

 

4.2

7|57

 

0.42

36

Difficulty swallowing or lump in the throat

6.0

17.4

(2.3-134)

9.6

28.95

(3.9-213)

0.39

37

Aphonia

6.0

4.50

(1.2-17)

7.2

5.79

(1.6-21)

0.25

41

Unpleasant numbness or tingling sensations

12.6

3.86

(1.7-9.0)

11.4

7.24

(2.5-21)

0.32

46

Amnesia (loss of memory)

10.2

3.54

(1.4-9.1)

14.4

9.65

(3.5-27)

0.40

47

Loss of consciousness

1.8

3|57

 

4.8

8|57

 

0.35

 

Excluded (no discriminative power in FCSE)

       

3

Back Pain

11.4

1.74

(0.7-4.0)

16.2

2.81

(1.4-5.6)

0.12

7

Pain in the anus

1.8

3.86

(0.4-41)

0.6

1|57

 

0.13

9

Pain during urination

1.2

2|57

 

1.2

2|57

 

0.23

16

Food intolerance

0.6

1|57

 

1.8

3.86

(0.4-41)

0.19

17

Loss of appetite

7.2

3.86

(1.2-12)

9.6

2.48

(0.9-6.3)

0.20

18

Bad taste in mouth, or excessive coated tongue

6.6

3.38

(1.0-11)

4.2

4.82

(0.9-24)

0.16

19

Dry mouth

11.4

2.65

(1.1-6.2)

7.2

1.38

(0.5-4.2)

0.05

33

Unpleasant sensations in or around the genitals

1.8

3.86

(0.4-42)

3.6

3.86

(0.7-20)

0.16

38

Urinary retention

0.0

  

0.0

   

39

Hallucinations

1.8

3|57

 

1.2

2|57

 

0.10

42

Double vision

3.0

1.29

(0.2-7.5)

3.6

3.86

(0.7-20)

0.20

44

Deafness

1.8

3|57

 

2.4

5.79

(0.6-54)

0.08

F48

Painful menstruation

8.1

1.09

(0.3-3.7)

12.1

1.43

(0.6-3.7)

0.33

F49

Irregular menstruation

2.4

0.82

(0.1-8.8)

3.2

0.55

(0.1-5.1)

0.18

F50

Excessive menstrual bleeding

4.0

2.46

(0.4-14)

8.1

2.46

(0.7-8.3)

0.27

F52

Unusual or copious vaginal discharge

0.0

  

0.0

   

M53

Erectile or ejaculatory dysfunction

2.3

1|10

 

2.3

1|10

 

0.15

  1. CI: confidence interval; rpbi: point-biserial correlation coefficient with the overall sum of symptoms; F48 to F52: symptoms only for women; M53: symptom only for men; for these groups of symptoms frequencies, positive likelihood and correlations were calculated for the respective groups (124 women and 43 men); whenever the Positive Likelihood ratio [sensibility/(1-specificity)] was not defined the number of somatizers with that symptom is indicated (sensibility) since non-somatizers did not have the symptom (specificity = 1)
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BMC Psychiatry

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