Table 3.

Estimated Relative Risks for the Temporal Effects of the Four Components in each Time Period

Posterior median (95% CI) in year:
Component	2004	2005	2006	2007	2008
1	0.99 (0.94-1.05)	1.00 (0.97-1.04)	1.01 (0.98-1.05)	1.00 (0.97-1.04)	1.00 (0.94-1.04)
2	1.01 (0.96-1.06)	1.00 (0.97-1.04)	1.00 (0.97-1.03	1.00 (0.97-1.04)	0.99 (0.94-1.03)
3	1.00 (0.95-1.06)	1.00 (0.95-1.03)	1.00 (0.96-1.03)	1.00 (0.97-1.05)	1.00 (0.95-1.05)
4	0.99 (0.93-1.04)	1.00 (0.96-1.04)	1.00 (0.96-1.03)	1.01 (0.97-1.05)	1.01 (0.96-1.06)