Table 3 The association between double kernel density (DKD) of lung and NHL morbidity rates (cases per 100,000 residents) and distance to the revealed exposure sources (Method—multivariate regression, distance variables—quadratic wind-adjusted distance terms; interaction terms added)c
From: Spatial identification of potential health hazards: a systematic areal search approach
Variables | Model 5 | Model 6 | Model 7 |
|---|---|---|---|
Ba and (tb) | Ba and (tb) | Ba and (tb) | |
A. Lung cancer | |||
 (Constant) | −15.663 (−7.937*) | −15.125 (−4.832*) | −15.791 (−4.948*) |
 Distance | 0.004 (8.591*) | 0.004 (9.314*) | 0.004 (8.109*) |
 Distance2 | −2.689E−07 (−8.258*) | −2.945E−07 (−9.067*) | −2.715E−07 (−7.587*) |
 No. of reference points | 1000 | 1000 | 1000 |
 \( {\text{R}}^{2} \) | 0.478 | 0.480 | 0.480 |
 \( {\text{R}}_{\text{adjusted}}^{2} \) | 0.470 | 0.471 | 0.472 |
 F | 56.308* | 56.582* | 56.790* |
B. NHL cancer | |||
 (Constant) | −9.890 (−4.709*) | −9.233 (−4.402*) | −10.001 (−4736*) |
 Distance | 0.003 (13.563*) | 0.003 (13.119*) | 0.003 (12.436*) |
 Distance2 | −2.438E−07 (−12.930*) | −2.457 (−11.995*) | −2.486E−07 (−11.079*) |
 No. of reference points | 1000 | 1000 | 1000 |
 \( {\text{R}}^{2} \) | 0.373 | 0.374 | 0.374 |
 \( {\text{R}}_{\text{adjusted}}^{2} \) | 0.364 | 0.364 | 0.364 |
 F | 39.311* | 39.288* | 36.704* |