Table 1

Parameter values describing the parsimonious model

Model Parameters
HBV
95% C. I.
HCV
95% C. I.
Global
95% C. I.

g(t) trend in the FOI by year 1999–2003






1999–2003
0.1079
(0.0840–0.1327)
0.1608
(0.1314–0.1942)


h(τ) trend in the FOI by injecting career length






<1
1
fixed
Same as HBV


1+
0.3272
(0.2359–0.4443)
Same as HBV


HBV background prevalence b




0
(0.0–0.0161)
Frailty θ




0.6566
(0.5305–0.8224)

U -0.132

-2.524




V 0.117

0.026




W 63.99

77.52




Z 295.5

19.49




Sutton et al. BMC Infectious Diseases 2006 6:93   doi:10.1186/1471-2334-6-93