Table 3. Annual number of dengue cases estimated from MN and LN surveillance systems by using Chapman-Seber estimator, stratified according to geographic area and period of the year, metropolitan France, 2007–2010*.

	No. observed cases					Chapman-Seber estimator
Year, region, period	System		Common cases		Estimated no. cases (95% CI)	Completeness of MN, % (95% CI)	Completeness of LN, % (95% CI)
	MN	LN
2007
Southeast, May–Nov	4	21	4		21†	19.0†	100†
Other areas, remainder of year	52	365	21		881 (678–1,228)	5.9 (4.2–7.7)	41.4 (29.7–53.8)
Total	56	386	25		902 (699–1,249)	6.2 (4.5–8.0)	42.8 (30.9.7–55.2)
2008
Southeast, May–Nov	6	11	4		16 (14–27)	38.0 (22.0–44.4)	69.6 (40.3–81.2)
Other areas, remainder of year	58	293	42		402 (360–479)	14.4 (12.1–16.1)	72.8 (61.2–81.3)
Total	64	304	46		418 (376–495)	15.3 (12.9–17.0)	72.7 (61.2–80.7)
2009
Southeast, May–Nov	5	19	4		23 (20–38)	21.7 (13.1–24.4)	82.6 (52.3–97.6)
Other areas, remainder of year	63	331	38		544 (468–671)	11.6 (9.4–13.5)	60.9 (49.3–70.1)
Total	68	350	42		567 (490–694)	12.0 (9.8–13.8)	61.7 (50.3–71.2)
2010
Southeast, May–Nov	91	174	75		211 (200–232)	43.2 (39.3–45.4)	82.5 (75.2–86.8)
Other areas, remainder of year	494	1,951	354		2,721 (2,599–2,872)	18.2 (17.2–19.0)	71.7 (67.9–75.1)
Total	585	2,125	429		2,932 (2,809–3,083)	20.0 (19.0–20.8)	72.5 (68.9–75.6)
2007–2010
Southeast, May–Nov	106	225	87		271 (258–294)	39.2 (35.4–40.8)	83.1 (75.1–86.7)
Other areas, remainder of year	667	2,940	455		4,548 (4,262–4,907)	14.7 (13.5–15.5)	64.6 (59.3–68.5)
Total	773	3,165	542		4,818 (4,532–5,178)	16.0 (14.8–16.9)	65.7 (60.5–69.3)
*Information on geographic area or period of the year was not available for 27 cases; MN, mandatory notification; LN, laboratory network. †95% CI not presented because of null variances.