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We used national and regional registry region boundaries, as defined by the Office for National Statistics, to delineate NCAS and BINOCAR regions.
Forty percent of variance in rates was at registry region level and 60% at LA level.
In women, incidence rates varied from 70perr 100 000 in the Trent Cancer registry region to 83 per 100 000 in OCIU region.
Two controls were individually matched to each case on year of birth (in 5-year strata), year of diagnosis (in 4-year strata), registry region, and race/ethnicity.
Although the analysis was stratified by cancer registry region of residence at recruitment, variation in diagnostic and coding practice remains a possible source of bias.
Follow-up ended on 31 December 2008 for Scotland and the North West (Merseyside and Cheshire) cancer registry region, and 31 December 2009 elsewhere.
Similar(39)
As the NCR did not supply population figures of January 1 , 1998 we estimated it for the individual cancer registry regions by multiplying the 1997 regional age-specific population numbers by the age-specific percent change between 1997 and 1998 of the national population.
Lower rates appear particularly in parts of Eastern and West Midlands cancer registry regions.
Across the cancer registry regions of England, the level of agreement between invasive and non-invasive disease was between 88% and 98% (κ = 0.9 to 1.0; Table 4).
Cases of female invasive breast cancer diagnosed in two English cancer registry regions were linked to Hospital Episode Statistics data for the period 1st April 1997 to 31st March 2005.
It has also been suggested that, for cancer at any age, completeness may vary between registry regions of England and Wales (Quinn et al, 2001).
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