Table 2 Relative risks of progressive encephalopathy according to time period and age estimated as incidence rate ratios with 95% confidence intervals using Poisson regression
From: Incidence rates of progressive childhood encephalopathy in Oslo, Norway: a population based study
Incidence rate ratios | |
|---|---|
Time periode | |
1985–89 | 1.0 (reference value) |
1990–94 | 0.84 (0.41–1.73) |
1995–99 | 1.39 (0.73–2.65) |
2000–04 | 1.11 (0.57–2.16) |
Age (y) | |
<1 | 1.0 (reference value) |
1–1.99 | 0.11 (0.06–0.20) |
2–5 | 0.02 (0.01–0.05) |
>5 | 0.01 (0.00 – 0.02) |