Table 1

Comparison of incident location coding in two datasets: one supplied to AWISS without any incident narrative, the other containing incident narrative in addition to standard codes

TypeNo narrativeAll narrativeDifference% DifferenceDifference in proportions95% CI
Home852815077+6549+76.80.640.63 to 0.64
Work33325448+2116+65.30.620.61 to 0.63
School13341602+268+20.10.550.53 to 0.56
RTA15563135+1579+101.50.670.65 to 0.68
Other1487537−950−63.90.270.25 to 0.28
Not known3376324201−9562−28.30.420.41 to 0.42
Total5000050000