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Table 4 Main logistic regression model results. All first injuries (14,081 subjects out of 112,248). Odds ratios and X2 tests for effect of build type on proportion of subjects ever injured (a) unadjusted; (b) adjusted for other factors after random imputation of deprivation and distance scores to the uninjured; and (c) adjusted for other factors after re-randomisation.

From: Home injuries and built form – methodological issues and developments in database linkage

Build type Number of residents Univariate model Adjusted for other factors, original random imputation Adjusted for other factors, re-randomisation
   Odds ratio Odds ratio (95% CI) Odds ratio (95% CI)
A 15,877 0.790 (0.746–0.837) 0.890 (0.831–0.954) 0.892 (0.832–0.955)
B 35,791 1.049 (1.009–1.091) 1.108 (1.055–1.165) 1.109 (1.055–1.166)
C 280 1.003 (0.703–1.431) 1.106 (0.768–1.592) 1.113 (0.774–1.600)
D 2,695 2.046 (1.863–2.247) 2.074 (1.870–2.301) 2.074 (1.869–2.301)
E 57,605 1.000 1.000 1.000
X2 (4 df) 327.5 254.5 254.1
p-value <0.001 <0.001 <0.001
Distance to ED (km)    
4.26 and below 1.431 (1.352–1.514) 1.469 (1.384–1.560) 1.467 (1.381–1.557)
4.27 – 5.57 1.288 (1.211–1.369) 1.413 (1.317–1.516) 1.409 (1.314–1.512)
5.58 – 8.69 1.385 (1.308–1.467) 1.356 (1.276–1.440) 1.352 (1.273–1.437)
8.70 – 13.25 1.168 (1.100–1.240) 1.243 (1.166–1.325) 1.248 (1.170–1.330)
13.26 and above 1.000 1.000 1.000
X2 (4 df) 194.8 (p < 0.001) 179.9 (p < 0.001) 176.9 (p < 0.001)
Townsend score 1.020 (1.014–1.027) 1.016 (1.008–1.024) 1.016 (1.008–1.024)
X2 (1 df) 36.8 (p < 0.001) 15.4 (p < .0.01) 15.9 (p < 0.01)