Incidence estimation from sentinel surveillance data; a simulation study and application to data from the Belgian laboratory sentinel surveillance

Table 4 Coverage estimates and the total number of cases (95% bootstrap-based confidence intervals) for the four pathogens. The presented coverage-estimates are the proportion of reporting laboratories, the catchment population and the area covered by sentinel surveillance (average of the market shares over all NIS5-areas). Participation is set equal to reporting, Belgian laboratory sentinel surveillance

Germ	Reporting 0 cases = Not participating
Germ	\( \frac{Sentinel\ labs}{All\ labs} \)	\( \frac{Covered\ pop}{Total\ pop} \)	\( \frac{Covered\ area}{Total\ area} \)
Campylobacter spp.	0.45	0.52	0.49
Influenza	0.35	0.43	0.40
Rotavirus	0.43	0.52	0.51
Y. enterocolitica	0.33	0.44	0.35
	Reported Number of cases	Estimated number of cases (95% CI)
Campylobacter spp.	8813	14918 (11404–15446)
Influenza	7382	12059 (9454–13827)
Rotavirus	2750	4325 (3455–4657)
Y. enterocolitica	370	834 (740–1049)

ISSN: 1471-2458