Table 3

OR for case fatality rate of Ebola virus disease according to period

Year of outbreak
1976–19861987–19971998–20082009–2019
Death (n)45434873313 288
Case fatality rate (%)71676462
OR (95% CI)1.6 (1.4 to 1.8)1.7 (1.5 to 1.9)1.4 (1.3 to 1.6)1.6 (1.5 to 1.6)
P value<0.001<0.001<0.001<0.001