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Table 1 Demographic and clinical features of the participants

From: Development and external validation of a nomogram for neurosyphilis diagnosis among non-HIV patients: a cross-sectional study

Diagnosis

Development Cohort

Validation Cohort

Not or non-reactive NS

Reactive NS

P value

Not or non-reactive NS

Reactive NS

P value

N

44

104

 

40

27

 

Sex, n (%)

  

0·219

  

0·432

 Male

33 (75·0)

87 (83·7)

 

26 (65·0)

20 (74·1)

 

 Female

11 (25·0)

17 (16·3)

 

14 (35·0)

7 (25·9)

 

Age, years, mean (SD)

46·4 (13·7)

47·3 (11·8)

0·694

48·75 (13·40)

52·96 (16·32)

0·252

 ≥45

22 (50·0)

62 (59·6)

0·19

   

 < 45

22 (50·0)

42 (40·4)

    

 Height, cm, mean (SD)

164·3 (7·8)

166·5 (7·7)

0·208

165·50 (8·46)

166·63 (7·98)

0·585

 Weight, kg, mean (SD)

61·4 (9·6)

62·9 (11·4)

0·542

71·13 (20·89)

68·92 (12·59)

0·642

Education level, n (%)

  

0·110

  

0·197

 High school or beyond

19 (44·2)

30 (30·3)

 

13 (32·5)

13 (48·1)

 

 Beyond high school

24 (55·8)

69 (69·7)

 

27 (67·5)

14 (51·9)

 

Address, n (%)

  

0·088

  

0·202

 City

24 (55·8)

33 (33·0)

 

9 (22·5)

5 (18·5)

 

 Urban-rural fringe area

5 (11·6)

14 (14·0)

 

6 (15·0)

5 (18·5)

 

 Village and town

14 (32·6)

47 (47·0)

 

18 (45·0)

17 (63·0)

 

 Other province of China

0 (0·0)

4 (4·0)

 

6 (15·0)

0 (0·0)

 

 Aboard

0 (0·0)

2 (2·0)

 

1 (2·5)

0 (0·0)

 

 Treatment before, n (%)

15 (43·9)

28 (27·7)

0·207

22 (55·0)

12 (44·4)

0·347

Clinical symptoms, n (%)

 No symptom

6 (13·6)

8 (7·7)

0·259

5 (12·5)

3 (11·1)

0·863

 Psychiatric behaviour disorders

9 (20·5)

52 (50·0)

< 0·001

8 (20·0)

7 (25·9)

0·568

 Memory change

9 (20·5)

40 (38·5)

0·033

7 (17·5)

5 (18·5)

0·915

 Sleep difficulty

5 (11·4)

23 (22·1)

0·127

1 (2·5)

1 (3·7)

0·776

 Photophobia

6 (13·6)

8 (7·7)

0·259

2 (5·0)

1 (3·7)

0·801

 Blurred Version

4 (9·1)

6 (5·8)

0·462

3 (7·5)

1 (3·7)

0·520

 TP CLIA, mean (SD)

57·3 (42·0)

93·3 (49·9)

0·002

 1 < X < 100, n (%)

7 (16·3)

1 (1·0)

 

24 (60·0)

7 (25·9)

 

 X > 100, n (%)

36 (83·7)

99 (99·0)

 

16 (40·0)

20 (74·1)

 

 Creatine kinase, mean (SD), U/L

106·5 (137·3)

196·5 (373·0)

0·132

63·3 (15·1)

 Elevated CK, n (%)

2 (4·8)

20 (20·6)

0·019

0 (0)

Serum TRUST, n (%)

  

< 0·001

  

0·008

 Negative

9 (22·5)

3 (3·0)

 

15 (37·5)

1 (4·0)

 

 1

14 (35·0)

9 (9·0)

 

19 (47·5)

11 (44·0)

 

 8

5 (12·5)

7 (7·0)

 

4 (10·0)

5 (20·0)

 

 16

6 (15·0)

18 (18·0)

 

1 (2·5)

3 (12·0)

 

 32

4 (10·0)

30 (30·0)

 

0 (0·0)

1 (4·0)

 

  ≥ 64

2 (5·0)

33(33·0)

 

1 (2·5)

4 (16·0)

 

Serum TPPA > 1:320, n (%)

36 (81·8)

96 (92·3)

0·060

35 (87·5)

25 (96·2)

0·130

  1. Note: SD Standard deviation, Q Quartile; Neurosyphilis, NS; Elevated creatine kinase (CK) male ≥308, female ≥192 U/L; TP CLIA Treponema pallidum chemiluminescence assay; TRUST, Toluidine red unheated serum test, TPPA Treponema pallidum particle agglutination assay, IgG Immunoglobulin. Data with normal distribution are described using mean (SD)