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Table 2 Factors associated with the awareness status of syphilis knowledge in logistic regression analysis

From: Poor awareness of syphilis prevention and treatment knowledge among six different populations in south China

  Number of participants Awareness of syphilis knowledge ORu (95 % CI) ORm (95 % CI) a
Frequency %
Population
 Urban residents 665 435 65.4 1.00   1.00  
 Factory workers 679 380 56.0 0.67 (0.54–0.84)*** 1.08 (0.84–1.39)
 College students 718 371 51.7 0.57 (0.46–0.70)*** 0.45 (0.32–0.64)***
 Pregnant women 683 451 66.0 1.03 (0.82–1.29) 0.99 (0.76–1.29)
 FSWs 371 200 53.9 0.62 (0.48–0.80)*** 1.38 (1.02–1.88)*
 MSM 354 287 81.1 2.26 (1.66–3.09)*** 1.59 (1.13–2.24)**
Age (years)
  ≤ 20 686 346 50.4 1.00   1.00  
 21–25 884 468 52.9 1.11 (0.91–1.35) 1.03 (0.82–1.30)
 26–30 846 582 68.8 2.17 (1.76–2.67)*** 1.76 (1.33–2.33)***
 31–35 452 314 69.5 2.24 (1.74–2.87)*** 1.79 (1.31–2.45)***
  > 35 602 414 68.8 2.16 (1.72–2.72)*** 1.64 (1.20–2.25)**
Gender
 Male 1289 880 68.3 1.00   1.00  
 Female 2181 1244 57.0 0.62 (0.53–0.71)*** 0.64 (0.54–0.77)***
Ethnicity
 Han 3307 2022 61.1 1.00    
 Others 163 102 62.6 1.06 (0.77-1.47)   
Education
 Junior middle school or lower 1042 542 52.0 1.00   1.00  
 Senior middle school 939 613 65.3 1.73 (1.45–2.08)*** 1.67 (1.38-2.02)***
 College or above 1489 969 65.1 1.72 (1.46–2.02)*** 2.66 (2.07-3.42)***
Hukou
 Shenzhen 839 572 68.2 1.00    
 Other cities in Guangdong province 936 543 58.0 0.64 (0.53–0.78)*** 0.79 (0.64–0.97)*
 Other provinces in China 1645 970 59.0 0.67 (0.56–0.80)*** 0.67 (0.54–0.84)***
 Hong Kong, Macao, and Taiwan 50 39 78.0 1.65 (0.83–3.28) 1.10 (0.53–2.29)
  1. CI Confidential interval, OR u odds ratio in univariate analysis, OR m odds ratio in multivariate logistic regression
  2. *p < 0.05; **p < 0.01; ***p < 0.001
  3. aAll the variables with p < 0.05 in univariate analysis were selected stepwise via a forward method, to be entered into the multivariate logistic regression model