How complete is AIDS surveillance in Europe? An eagle eye comparison with mortality data.

Area of Science:

• Epidemiology
• Public Health
• Infectious Disease Surveillance

Background:

• National AIDS surveillance systems in Europe vary in completeness and functionality.
• Discrepancies exist between AIDS surveillance data and mortality statistics across European countries.
• Effective treatments for AIDS present new challenges for surveillance efforts.

Purpose of the Study:

• To assess the adequacy of AIDS surveillance in Europe.
• To compare data from AIDS surveillance systems with mortality statistics.
• To identify patterns of concordance and discordance in European AIDS data.

Main Methods:

• Utilized European Non-Aggregate AIDS Data Set (ENAADS) and World Health Organization (WHO) mortality statistics.
• Compared AIDS incidence and mortality data from ENAADS with WHO mortality data.
• Included Western European countries with over 1000 adult AIDS cases (as of July 1997) in comparative analyses.

Main Results:

• Four distinct patterns of concordance were observed between AIDS surveillance and mortality data.
• High concordance was noted in Austria, Italy, and Switzerland.
• Discrepancies included reporting delays (France, Spain), underreporting in ENAADS (Germany, Portugal), and overreporting in ENAADS (Sweden, UK, Greece, Belgium).

Conclusions:

• Significant variations in national AIDS surveillance systems' completeness and functionality were identified.
• Emerging challenges, such as complex treatments, will increase demands on surveillance.
• Countries with data discrepancies must enhance and update their surveillance systems.