Table 3

Changes in burn rates (per 10 000 person years) in three populations of children 0–4 years old

Baseline*Intervention†
NoPerson yearsRateNoPerson yearsRateRelative riskχp Value
*Baseline was 18 months for Trondheim and 19.5 months for Harstad and the six municipalities.
†Intervention lasted 10 years.
‡Two tailed p value by Fisher's exact test.
Harstad122 29252.44216 54625.40.494.190.04
Trondheim7612 28161.970095 78973.11.181.730.19
Six municipalities41 52526.2138 26615.70.600.320.32‡