International Comparisons: Canada and the United States

[Table of Contents]

Volume: 25S1 - May 1999

Sexually Transmitted Diseases in Canada: 1996 Surveillance Report
(with Preliminary 1997 Data)

Comparisons of disease incidence between countries is always problematic and has to be approached cautiously; however, the value of these comparisons lies in highlighting disease-specific trends and in determining the relative success of STD prevention and control activities. Of the three reportable bacterial STD, genital chlamydia (Figure 14) has shown the most diversity in Canadian and U.S. rates since it became reportable in 1991. Syphilis and gonorrhea, on the other hand, have shown reasonably similar international trends in incidence since 1980 (Figures 15 and 16).

FIGURE 14 Reported Genital Chlamydia Rates¹ in Canada and the United States, 1991 to 1997²

FIGURE 14 Reported Genital Chlamydia Rates1 in Canada and the United States, 1991 to 1997

¹ Rate per 100,000 population. Population estimates for Canadian rates provided by Statistics Canada.
² 1997 Canadian rates are considered preliminary and are expected to change.

Source: Health Canada, Laboratory Centre for Disease Control, Bureau of HIV/AIDS, STD & TB. © 1999 U.S. Source: Sexually Transmitted Disease Surveillance, 1997, Centers for Disease Control and Prevention, 1998

FIGURE 15 Reported Gonorrhea Rates¹ in Canada and the United States, 1980 to 1997²

FIGURE 15 Reported Gonorrhea Rates1 in Canada and the United States, 1980 to 1997

¹ Rate per 100,000 population. Population estimates for Canadian rates provided by Statistics Canada. ² 1997 Canadian rates are considered preliminary and are expected to change.

FIGURE 16 Reported Early Symptomatic (primary and secondary) Syphilis Rates¹ in Canada and the United States, 1980 to 1997²

FIGURE 16 Reported Early Symptomatic (primary and secondary) Syphilis Rates1 in Canada and the United States, 1980 to 1997

¹ Rate per 100,000 population. Population estimates for Canadian rates provided by Statistics Canada. ² 1997 Canadian rates are considered preliminary and are expected to change.

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	Last Updated: 2002-11-08		Important Notices