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Table 2 Characteristics of newly reached participants and previously tested participants

From: The added value of chlamydia screening between 2008-2010 in reaching young people in addition to chlamydia testing in regular care; an observational study

Variables Newly reached participants N = 4298 % (N) Previously tested N = 1025 % (N) Unadjusted OR(95%CI) Adjusted OR(95%CI) P value
Age      
  ≤ 21 28.7 (1233) 19.1 (196) 1.63 (1.4-2.0) 1.8 (1.5-2.2) <0.001
  22-24 33.8 (1451) 40.1 (411) 0.9 (0.8-1.1) 1.0 (0.8-1.1) 0.56
  25-29 37.6 (1614) 40.8 (418) 1 1  
Sex      
  Men 38.3 (1646) 18.7 (192) 2.7 (2.3-3.2) 2.9 (2.5-3.4) <0.001
  Women 61.7 (2652) 81.3 (833) 1 1  
Chlamydia      
  Yes 4.8 (204) 4.5 (46) 1.1 (0.8-1.5) ns  
  No    1   
Nationality      
  Non-Western 2.6 (111) 3.3 (34) 0.8 (0.5-1.2)   
  Western 96.7 (990) 97.4 (4159) 1 ns  
Restricted analyses      
Age      
  ≤ 21 30.7 (783) 20.2 (123) 1.7 (1.4-2.2) 1.7 (1.3-2.2) <0.001
  22-24 33.0 (842) 39.2 (239) 0.9 (0.8-1.2) 1.0 (0.8-1.2) 0.78
  25-29 36.3 (927) 40.7 (248) 1 1 1
Sex      
  Men 32.4 (827) 15.1 (92) 2.7 (2.1-3.4) ns  
  Women 67.6 (1725) 84.9 (518) 1   
Chlamydia      
  Yes 5.9 (150) 6.1 (37) 1.0 (0.7-1.4) ns  
  No 94.1 (2402) 93.9 (573) 1   
Sexual preference      
  Men who have sex with men 1.7 (39) 0.9 (5) 2.3 (0.9-5.9) 4.0 (1.6-10.6) <0.01
  Heterosexual men 30.4 (715) 13.8 (77) 2.8 (2.2-3.6) 3.3 (2.6-4.3) <0.001
  Women 67.9 (1598) 85.3 (477) 1 1  
Sex partners      
  1 73.3 (1713) 63.8 (353) 1.8 (1.4-2.4) 2.6 (1.9-3.4) <0.001
  2 15.9 (371) 19.2 (106) 1.3 (0.9-1.8) 1.7 (1.2-2.4) <0.01
  ≥3 10.8 (253) 17.0 (94) 1 1  
Symptoms      
  Yes 2.4 (62) 3.0 (18) 1.3 (0.8-2.1) ns  
  No 97.6 (2490) 97.0 (592) 1   
  1. Crude percentages and independent determinants for being a newly reached participant in univariate and multivariable analyses. Analyses were corrected for age, sex, and year of invitation. Restricted analyses were corrected for age, sexual preference, number of sex partners, and year of invitation.