Table 1.
Characteristics of HIV+ patients regularly followed at the Southern Alberta Clinic between 1 January 2006 and 31 December 2016 comparing patients who were negative for syphilis (syphilis neg) to patients who ever tested positive for syphilis (syphilis pos).
| Syphilis neg | Syphilis pos | P values | |
| N (%) | 2254 (92.1) | 194 (7.9) | |
| Age at HIV diagnosis (years) | |||
| Mean (range) | 35 (1–79) | 35 (16–69) | 0.893 |
| <30 | 813 (36.1) | 75 (38.7) | 0.801 |
| 30–39 | 802 (35.6) | 66 (34.0) | |
| 40–49 | 438 (19.4) | 37 (19.1) | |
| ≥50 | 201 (8.9) | 16 (8.3) | |
| Gender | |||
| Male | 1675 (74.3) | 183 (94.3) | <0.001 |
| Female | 572 (25.4) | 11 (5.6) | |
| Transgendered | 7 (0.3) | 0 (0.0) | |
| Self-reported ethnicity* | |||
| Caucasian | 1259 (56.0) | 140 (72.2) | <0.001 |
| Indigenous | 216 (9.6) | 6 (3.1) | |
| ACB | 536 (23.8) | 24 (12.4) | |
| Other | 243 (10.8) | 24 (12.4) | |
| Most likely HIV exposure category† | |||
| MSM | 915 (40.6) | 145 (74.4) | <0.001 |
| HET | 512 (22.7) | 14 (7.2) | |
| PWID | 731 (32.4) | 30 (15.6) | |
| Other | 96 (4.3) | 5 (2.6) |
*Indigenous people includes Aboriginal, Metis and Inuit; ACB includes African, Caribbean, Black; Other includes IndoAsian, Hispanic, East Asian and other.
†HET, self-reported heterosexual identification; MSM, self-reported men who have sex with men identification; PWID, self-reported intravenous drug use identification; Other HIV risk factor behaviour includes: blood transfusions, haemophiliac, neonatal, postnatal infection, unknown or not reported.