TABLE 1.

Characteristics of subjects in whom syphilis was diagnosed by PCR (2004 to 2011) from four Sydney clinics^a

Factor	Group	Value
Age at diagnosis (median, range)		41 (21–71)
Yr of diagnosis	2004	3
	2005	7
	2006	5
	2007	26
	2008	38
	2009	53
	2010	44
	2011	44
Aboriginal or Torres Strait Islander	No	157 (71.4%)
	Yes	0 (0.0%)
	Missing	63 (28.6%)
Gender	Male	219 (99.5%)
	Female	1 (0.5%)
Gender of sex partners	Male only	200 (91.0%)
	Male and female	3 (1.3%)
	Female only	3 (1.3%)
	Missing	14 (6.4%)
HIV status at diagnosis	Positive	118 (53.6%)
	Negative	102 (46.7%)
Stage of syphilis	Primary	155 (70.5%)
	Secondary	37 (16.8%)
	Missing	28 (12.7%)
Evidence of neurological syphilis	Yes	7 (3.2%)
	No	213 (96.8%)
Previous syphilis	Yes	65 (29.5%)
	No	134 (61.0%)
	Missing	21 (9.5%)
Sex overseas	No	187 (85.0%)
	Yes	33 (15.0%)
Macrolide antibiotic in previous 12 mo	Yes	47 (21.4%)
	No	173 (78.6%)

^aIn total, there were 220 study subjects.