Table. Incidence rate of case-patients detected by surveillance and proportions of deaths, possible infectious causes, and autopsy, Taiwan, August 2000–March 2005.
| Category | TCDC branch* |
||||
|---|---|---|---|---|---|
| Total | Northern | Middle | Southern | Eastern | |
| Incidence/100,000 person-years† | 0.12 | 0.09 | 0.16 | 0.09 | 0.64 |
| Proportion of deaths among all case-patients, % | 73 | 75 | 64 | 79 | 83 |
| Proportion of infectious causes identified, % | 65 | 63 | 68 | 68 | 39 |
| Viral agents among infection cases, % | 42 | 56 | 30 | 37 | 57 |
| Bacterial agents among infection cases, % | 46 | 36 | 57 | 47 | 36 |
| Rickettsia spp. among infection cases, % | 4 | 4 | 3 | 0 | 14 |
| Proportion of causes remaining unknown, % | 23 | 25 | 16 | 29 | 25 |
| Autopsy rate among patients who died, % | 49 | 53 | 43 | 41 | 67 |
*TCDC, Taiwan Centers for Disease Control. †Denominators for the population under surveillance, obtained from the 2002 intercensus (11) and approximately the midpoint of this study period, included all people in the age groups under surveillance at the various sites and were used to calculate the incidence rate.