Skip to main content

Table 1 Selected characteristics of sexually infected cases with early syphilis reported to the Norwegian surveillance system for communicable diseases, absolute numbers, (N = 558), 1992-2008.

From: Syphilis epidemiology in Norway, 1992-2008: resurgence among men who have sex with men

Characteristic   Selected categories Sex P1* P2*
    Women
n = 56 (%)
Men   
     Heterosexual transmission
n = 152 (%)
Homosexual transmission
n = 350 (%)
  
Age   Median age in years 26 37 37 / /
   15-24 years 22 (39.3) 8 (5.3) 33 (9.4) 0.222 < 0.001
   25-34 years 16 (28.6) 56 (36.8) 103 (29.4)   
   35-44 years 13 (23.2) 47 (30.9) 119 (34.0)   
   ≥ 45 years 5 (8.9) 41 (27.0) 95 (27.1)   
Residence   Oslo municipality 16 (28.6) 55 (36.2) 266 (76.0) < 0.001 0.304
   Other 40 (71.4) 97 (63.8) 84 (24.0)   
Birthplace   Norway 32 (57.1) 97 (63.8) 290 (82.8) < 0.001 0.773
   Europe, other 8 (14.3) 20 (12.7) 28 (8.0)   
   Asia 11 (19.6) 24 (15.8) 12 (3.4)   
   Africa 3 (5.3) 9 (5.9) 6 (1.7)   
   Other 2 (3.6) 2 (1.3) 14 (4.0)   
Reason for being in Norway   Temporary visit 0 2 (1.3) 9 (2.6) 0.546 0.644
   First generation immigrant/adopted 5 (8.9) 16 (10.5) 30 (8.6)   
   Other, including permanent residents 51 (91.1) 134 (88.1) 311 (88.9)   
Indications for testing   Symptoms 15 (26.8) 121 (79.6) 248 (70.8) < 0.001 < 0.001**
   Contact tracing 17 (30.3) 12 (7.9) 29 (8.3)   
   Own request 1 (1.8) 5 (3.3) 25 (7.1)   
   Routine testing of an immigrant 6 (10.7) 6 (3.9) 0   
   Pregnancy 13 (23.2) / /   
   No specific reason/other 4 (7.1) 8 (5.3) 48 (13.7)   
Median duration of symptoms in days***
(interquartile range)
   23
(19-47)
22
(10-56)
22
(9-44)
/ /
Stage of early syphilis   Primary 18 (32.1) 84 (55.3) 125 (35.7) < 0.001 < 0.001
   Secondary 12 (21.4) 43 (28.3) 149 (42.6)   
   Early latent 26 (46.4) 25 (16.4) 76 (21.7)   
Other reported STI****   none 52 (92.8) 140 (92.1) 239 (68.3) < 0.001 0.959
   HIV 1 (1.8) 2 (1.3) 85 (24.3)   
   Chlamydia 1 (1.8) 4 (2.6) 16 (4.6)   
   gonorrhoea 0 0 3 (0.9)   
   herpes 0 2 (1.3) 3 (0.9)   
   hepatitis B 1 (1.8) 2 (1.3) 3 (0.9)   
   other 1 (1.8) 2 (1.3) 1 (0.3)   
Source partner   Steady partner 32 (57.1) 20 (13.1) 56 (16.0) < 0.001 < 0.001
   Casual partner 11 (19.6) 78 (51.3) 254 (72.6)   
   Commercial sex worker 0 31 (20.4) 0   
   Other/Unknown 13 (23.2) 23 (15.1) 40 (11.4)   
Place of infection Abroad Total abroad 23 (41.1) 111 (73.0) 69 (19.7)   
   Europe, other 8 (14.3) 43 (28.3) 57 (16.3) < 0.001***** 0.001*****
      - In Russia 3 (5.4) 20 (13.1) 1 (0.3)   
   Asia 9 (16.1) 34 (22.4) 4 (1.1)   
   Africa 3 (5.4) 11 (7.2) 2 (0.6)   
   South/Mid America 2 (3.6) 18 (11.8) 4 (1.1)   
   Other 1 (1.8) 5 (3.3) 2 (0.6)   
  Norway Total Norway 31 (55.4) 33 (21.7) 270 (77.1)   
      - In Oslo 7 (12.5) 17 (11.2) 244 (69.7)   
  Unknown   2 (3.6) 8 (5.3) 11 (3.1)   
Diagnosed by   General practitioner, private specialist 32 (57.1) 71 (46.7) 85 (24.3) < 0.001 0.440
   Hospital 7 (12.5) 18 (11.8) 55 (15.7)   
   Youth/STI clinic 15 (26.8) 59 (38.8) 210 (60.0)   
   Other 2 (3.6) 4 (2.6) 0   
  1. *P-values for heterogeneity, using Pearson's chi squared test; P1 comparing homosexually and heterosexually infected men, P2 comparing women and heterosexually infected men
  2. **Women diagnosed during pregnancy were excluded for comparison
  3. *** Data available for 19 women, 109 men, infected heterosexually, and 199 men, infected homosexually
  4. **** Only one co-infection can be recorded into the system: if reported, HIV is always recorded
  5. ***** Seven categories were compared, including: Norway, Europe-other, Asia, Africa, South/Mid America, other (abroad), and unknown