An evaluation of the sensitivity of acute flaccid paralysis surveillance for poliovirus infection in Australia

BMC Infectious Diseases

Table 3 State and territory surveillance system sensitivity (2000-2005) at a design prevalence of 10^-5

Jurisdiction	Notification rate per 100,000/year*	Probability of stool sampling**	Median sensitivity (%)^† (5^th-95^th percentiles)	Sensitivity Ratio^‡
ACT	0.54 (0.07-2.78)	0.50 (0.01-0.99)	0.21 (0.03-0.49)	0.50
NSW	1.35 (1.10-1.63)	0.21 (0.01-0.30)	2.31 (1.39-3.61)	0.27
NT	2.45 (0.99-5.05)	0.00 (0.00-0.41)	0.03 (0.002-0.13)	0.09
QLD	1.28 (0.98-1.64)	0.45 (0.32-0.58)	2.99 (1.87-4.54)	0.55
SA	0.59 (0.28-1.09)	0.20 (0.03-0.56)	0.40 (0.08-1.05)	0.21
TAS	0.71 (0.19-1.82)	0.25 (0.01-0.81)	0.20 (0.03-0.54)	0.31
VIC	0.54 (0.37-0.77)	0.29 (0.14-0.48)	1.44 (0.55-3.09)	0.23
WA	0.42 (0.20-0.77)	0.30 (0.07-0.65)	0.60 (0.13-1.62)	0.22
Australia	0.98 (0.86-1.11)	0.29 (0.23-0.35)	8.22 (5.32-12.06)	0.35

*Rate per 100,000 persons aged < 15 years per year, (lower 95% binomial exact CI: upper 95% binomial exact CI).
**Probability (lower 95% binomial exact CI: upper 95% binomial exact CI).
^†Model assumes no influence of age on the likelihood of infection.
^‡Ratio of the jurisdiction sensitivity and the WHO recommended jurisdiction sensitivity.

ISSN: 1471-2334