Table 1 Incidence rate ratios (IRRs) from univariate models for ALL by age group for wards classified according to quintiles of ratio of 1991 to 1981 census population estimates
Significance level | IRR in each quintile category | ||||||
|---|---|---|---|---|---|---|---|
Age group (years) | Heterogeneity | Trend | 1 (decline) | 2 | 3 | 4 | 5 (increase) |
0 | 0.62 | 0.40 | 1 | 1.42 | 1.10 | 1.18 | 1.44 |
1–4 | 0.12 | 0.08 | 1 | 1.00 | 1.19 | 1.08 | 1.11 |
5–14 | 1.00 | 0.99 | 1 | 0.97 | 0.99 | 0.98 | 1.00 |
