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Table 1 Socio-demographic characteristics of respondents by gender*

From: Sexual behavior and awareness of Chinese university students in transition with implied risk of sexually transmitted diseases and HIV infection: A cross-sectional study

  Male % (n = 11,255) Female % (n = 11,238) Total % (n = 22,493)
University    
   University A 50.8 53.6 52.2
   University B 49.2 46.4 47.8
Age (years)    
   16–19 23.6 33.8 28.7
   20–23 74.6 65.5 70.0
   ≥24 1.1 0.4 0.8
   Mean age ± SD† 20.5 ± 1.4 20.1 ± 1.3 20.3 ± 1.4
Grade    
   Grade I 33.1 33.0 33.0
   Grade II 29.4 30.0 29.7
   Grade III 26.2 25.5 25.9
   Grade IV 11.3 11.4 11.4
Residence before university    
   Rural 32.3 24.2 28.3
   Town 37.9 39.4 38.6
   Urban 29.4 36.1 32.7
Current residence    
   Dormitory 97.4 98.5 98.0
   Other 2.1 1.2 1.7
Perceived family's economic status    
   Rich 7.2 8.5 7.8
   Intermediate 82.9 86.1 84.5
   Poor 9.7 5.2 7.4
  1. *The percentage of respondents may not add up to 100% due to non-response for some items.
  2. †Standard deviation.