Table 2. Results of Monte Carlo simulation characterizing the uncertainty about the number of cases and the passive surveillance multipliers and the annual reported and estimated cases and incidence of nontyphoidal Salmonella infections, Guangdong Province, China, 2012.

Age group, y	Annual no. cases, median (95% CI)	Multipliers, median (95% CI)	No. cases			Annual incidence, cases/100,000
			Reported	Estimated (95% CI)		Reported	Estimated (95% CI)
0–4	87,195 (68,367–138,725)	209.6 (168.5–332.1)	415	87,195 (68,367–138,725)		6.13	1,287.9 (1,009.8–2,049.0)
5–24	222,558 (90,222–1,376,278)	605.3 (248.9–3720.3)	367	222,558 (90,222–1,376,278)		0.90	547.7 (222.0–3387.1)
25–44	119,409 (49,292–488,534)	1038.3 (436.4–4250.9)	115	119,409 (49,292–488,534)		0.32	333.4 (137.6–1,364.1)
45–64	18,577 (11,400–36,234)	320.2 (216.8–603.2)	58	18,577 (11,400–36,234)		0.40	126.6 (77.7–247.0)
>65	16,421 (8,351–42,273)	457.1 (259.7–1156.5)	36	16,421 (8,351–42,273)		0.56	255.1 (129.7–656.8)
Overall	408,499 (302,899–591,901)	411.9 (308.4–592.7)	991	408,499 (302,899–591,901)		0.95	391.6 (290.3–567.4)