Prevalence and Incidence of Syphilis among Volunteer Blood Donors in Israel

Table 1

Prevalence (%) of seropositive donors by gender, age, country of birth, and year of immigration.

Variable	Number of donations	Number of donors	Number of seropositives	Prevalence (%)	95% C.I. of prevalence
Total	1,290,222	606,549	283	0.0467	(0.0415, 0.0524)
Gender
Men	945,653	417,475	189	0.0453	(0.0393, 0.0522)
Women	344,569	189,074	94	0.0497	(0.0406, 0.0608)
Age
≤24	440,712	207,203	24	0.0116	(0.0078, 0.0172)
25–34	357,888	170,781	74	0.0433	0.0345, 0.0544)
35–44	217,965	107,251	81	0.0755	(0.0608, 0.0938)
≥45	273,657	121,314	104	0.0857	(0.0708, 0.1039)
Country of origin
Israel	1,022,071	474,140	101	0.0213	(0.0175, 0.0259)
Asia	29,423	14,580	17	0.1166	(0.0728, 0.1867)
Africa	9,921	5,047	9	0.1783	(0.0938, 0.3386)
USSR and Eastern Europe	141,894	70,766	136	0.1922	(0.1625, 0.2273)
Western Europe; North America and Oceania	66,106	32,370	11	0.0340	(0.0190, 0.0608)
South America	19,159	8,863	9	0.1015	(0.0534, 0.1929)
Unknown	1,648	783	0
Time of immigration
Israeli born	1,022,071	474,140	101	0.0213	(0.0175, 0.0259)
<1990	109,483	47,774	39	0.0816	0.0597, 0.1116)
≥1990	142,292	72,188	136	0.1884	(0.1593, 0.2228)
Unknown	16,376	12,447	7	0.0562	(0.0272, 0.1161)