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. Author manuscript; available in PMC: 2016 Oct 4.
Published in final edited form as: J Biomed Inform. 2016 Apr 1;61:110–118. doi: 10.1016/j.jbi.2016.03.027

Table 3.

Correlation coefficients between the official cancer surveillance statistics and the obituary-based statistics.

Age distribution Geospatial distribution Temporal distribution
Breast cancer
All (12,716) obituaries 0.981 0.939 0.611
5000 obituaries 0.979 0.932 0.839
2500 obituaries 0.956 0.926 0.648
Lung cancer
All (11,134) obituaries 0.994 0.881 0.839
5000 obituaries 0.982 0.814 0.479
2500 obituaries 0.964 0.846 0.812
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