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Table 2 Comparison of demographic characteristics between early diagnosis (n = 18101) and delayed diagnosis (n = 65843) in univariate analysis and multilevel model (2014 to mid-2015, Guangdong Province)

From: Stages of syphilis in South China – a multilevel analysis of early diagnosis

 

Total

Early diagnosis

Univariate analysis

Multilevel model

 

frequency

%

OR (95% C.I.)

aOR (95% C.I.)

Gender

    

PCV: -1%

 Female

39331

7719

20%

ref

ref

 Male

44613

10382

23%

1.24 (1.2–1.28)*

1.27 (1.22–1.31)*

Age at diagnosis

    

PCV: 1%

 < 60 years old

61470

14719

24%

ref

ref

 ≥ 60 years old

22474

3382

15%

0.56 (0.54–0.59)*

0.52 (0.5–0.55)*

Marital status

    

PCV: 23%

 Married, divorced, widowed

19652

3141

16%

ref

ref

 Single

3186

1082

34%

2.70 (2.49–2.94)*

2.81 (2.58–3.06)*

Among married cases

    

PCV: 21%

 Married male

9545

1585

17%

ref

ref

 Married female

9296

1458

16%

0.93 (0.86–1.01)

0.91 (0.84–0.98)*

Ethnicity

     

 Non-Han

292

76

26%

ref

ref

 Han

23069

4513

20%

0.69 (0.53–0.9)*

/

Highest education level attained

  

PCV: 33%

 No schooling or primary school

6945

1016

15%

ref

ref

 Secondary school or above

16827

3344

20%

1.45 (1.34–1.56)*

1.48 (1.36–1.6)*

  1. aOR adjusted odds ratio in multilevel model with 1 explanatory factor, C.I. confidence interval
  2. *p < 0.05