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) | |