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Table 3 Effect of different weighting systems on estimates of under-reporting.

From: Heterogeneity in regional notification patterns and its impact on aggregate national case notification data: the example of measles in Italy

Weighting system % cases reported
Catalytic model using force of infection (FOI) from Italian seroprevalence data 8.9
Catalytic model using FOI from case notifications data 8.7
Catalytic model using EURO FOI (see text) 8.4
Age distribution of cases 1971–76 8.7
Simple moving average 8.3
  1. Estimated levels of measles case notification 1960–1974 arising from the use of different weighting systems for the moving average of numbers of births using as an example the region of Abruzzo.