joint strategic needs assessment foundation profile - JSNA

Interative Hull Atlas: www.hullpublichealth.org/Pages/hull_atlas.htm More information: www.jsnaonline.org and www.hullpublichealth.org
10.2.3.5 Five Year Survival Rates
Survival rates are not readily available in a national dataset at PCT level due to the
relatively small numbers. However, the Northern and Yorkshire Cancer Registry and
Information Service has provided this information for Hull. Table 259 gives the five-year
crude survival and relative survival rates for colorectal cancer for the diagnosed cases
within the periods 1998-2002 and 2000-2002. The crude rate is simply the percentage
of people who were diagnosed with colorectal cancer who survived to five years. The
relative survival rates are adjusted to take into account that in a cohort of people of
similar age some people would have died of other causes over a five year period, so it
reflects the relative survival rate for people diagnosed with colorectal cancer relative to
the general population. The relative survival rate for the Humber and Yorkshire Coast
Network given in Table 240 is 47% (95% CI 44% to 51%) for males and 50% (95% CI
46% to 53%) for females for colorectal cancer that was diagnosed during 1995-1999.
Therefore, the survival rates for Hull males is lower for cases diagnosed during 1998-
2002 and diagnosed during 2000-2002 and for females for cases diagnosed during
2000-2002. However, in the meantime, it is likely that survival rates across the Humber
and Yorkshire Coast Network have increased, i.e. if information was available for cases
diagnosed 2000-2002. Therefore, it is possible that current relative colorectal cancer
five-year survival rates for Hull males are lower in relation to the Network average.
However, whilst lower it is unlikely that they would be statistically significantly lower
given the overlap in the confidence intervals for Hull and the Network. It is possible that
people in Hull are diagnosed at a later stage as they do not visit their GP when they first
develop symptoms, and they may have other co-morbidities which could affect their
survival.
Table 259: Five Year Colorectal Cancer Survival Rates for Hull
Gender Five year colorectal cancer survival rates in Hull
Diagnosed 1998-2002 Diagnosed 2000-2002
Cohort Deaths Relative Survival Cohort Deaths Relative Survival
(95% CI)
(95% CI)
Males 368 243 45.1 (38.5, 51.6) 221 143 46.8 (38.3, 55.3)
Females 272 168 50.6 (42.8, 58.4) 158 100 48.9 (38.7, 59.1)
Persons 640 411 47.4 (42.4, 52.5) 379 243 47.7 (41.1, 54.2)
Joint Strategic Needs Assessment Foundation Profile – Hull Health Profile: Release 3. March 2011. 552