Cancer Incidence in Wales, 2001-2005
The Welsh Cancer Intelligence & Surveillance Unit (WCISU) has published data for the calendar year 2005 on 22nd December 2006 which is within the twelve month target set for us by the Welsh Assembly Government (WAG). It should note that this target is six months less than that set for the Cancer Registries in England and consequently WCISU is now one of the most timely registries in the UK. It is to be hoped that these data will be useful to clinicians and service planners.
Cancer Incidence in Wales, 2000-2004
The Welsh Cancer Intelligence and Surveillance Unit (WCISU) has published Cancer Incidence Statistics for the period 2000-2004 on April 19th 2006. Detailed incidence figures by sex and five year age band are produced for the diagnosis year 2004 along with trends in cancer incidence in Wales for 2000-2004. The previous triennial report for the period 1993-2002 was published on June 15th 2005 covering incidence, mortality and survival in Wales and an update on incidence figures for the year 2003 was published on 28th November 2005.
WCISU has reported on many cancer sites together with the summary category of all malignancies but excluding the non-melanoma skin cancers. There were 16,862 new malignancies registered amongst people living in Wales in 2004. The most common cancer sites in males are prostate, lung and bladder, and in females, breast, lung and colon.
Cancer Incidence in Wales 2003
The Welsh Cancer Intelligence and Surveillance Unit (WCISU) has published Cancer Incidence Statistics for the year 2003 on May 27th 2005. The previous triennial report on incidence covered the years 1992-2001 and an update of incidence for 2002 was published on May 24th 2002. The triennial report covering 1993-2002 will be published this summer containing information on incidence, mortality and survival.
In common with most cancer registries, WCISU has reported on the main cancer sites (26) separately together with the summary category of all malignancies but excluding the non-melanoma skin cancers. There were 15,857 new malignancies registered amongst people living in Wales in 2003. The most common cancer sites in males are prostate, lung and bladder, and in females, breast, lung and colon.
Cancer registration is a dynamic process and it is always possible that more cases will accrue over time. It is dependent on receiving data from multiple sources related to the diagnosis and treatment of individual patients. In particular, ongoing data quality checks have recently revealed the fact that there were a number of PEDW records which had not been passed onto us. At the time of publication we had not had time to fully digest these records.
STATEMENT REGARDING PEDW DOWNLOAD
A suspected shortfall of registrations in 2002 has led to WCISU being made aware of missing records, particularly for lung cancer from PEDW. These records date from 1995 to the present day. WCISU have recently received the missing data and are currently assessing the impact of these records on total numbers of registrations for previous years. There are approximately 48,000 records that were received from PEDW of which 29,000 are unique neoplasm registrations. It is hoped that the data from PEDW will not lead to a large amount of new registrations and that these records consist of supplementary information to current registrations. e.g. treatment information.
These records are to be processed by the registration staff and updated versions of publications will be released accordingly.
Cancer Incidence in Wales 2002: Publication Date – May 2004
The Welsh Cancer Intelligence and Surveillance Unit (WCISU) has published Cancer Incidence Statistics for the year 2002 on May 24th 2004. The previous report covered the years 1992-2001. In common with most cancer registries, WCISU has reported on the main cancer sites (26) separately together with the summary category of all malignancies but excluding the non-melanoma skin cancers. There were 15,104 new malignancies registered amongst people living in Wales in 2002. The most common cancer sites in males are prostate, lung and bladder, and in females, breast, lung and colon.
Cancer Incidence in Wales 2002
Cancer Survival in Wales 1989-1998: Publication date - September 2003
The Welsh Cancer Intelligence and Surveillance Unit (WCISU) published statistics of cancer survival in Welsh residents for cases registered during the decade 1989-98 and followed to the end of 2001. Details of the data and statistical methods are discussed in section 1 of this report. In essence, WCISU is charged with registering all cases of cancer occurring in the population of Wales and linking these with the NHS Central Registry via ONS to provide a follow up of deaths which may occur. Survival statistics are based upon time from diagnosis to death, usually given as the percentage fraction alive at specific time points, e.g. 5-years, giving the observed survival. To account for other competing causes of mortality, relative survival has also been computed. Population based cancer survival statistics reflect the overall effectiveness of cancer treatment services, but interpretation can be complex. Apart from treatment, other health care factors such as early diagnosis and screening will influence survival. Survival is reduced by adverse socio-economic factors such as malnutrition and it also reduces with age at diagnosis. Tumour attributes such as histological type, grade and stage of cancer at diagnosis are also related to survival. Finally, data quality can influence results. The data used for this report is the result of validating, matching a merging the various inputs with aid of our computer system. WCISU have been proactive, doing intense work on data quality, including improving the linkage with NHS Central Registry, thus providing better follow up and elimination of the so called â€œimmortalsâ€?. Paradoxically survival has reduced for certain sites such as lung and pancreas. WCISU collaborates with the UK Association of Cancer Registries on peer review of data quality. Section 3 of the report describes a number of key data quality indicators. Reports are given in section 2 for each of the main (28) separate cancer sites and also for total malignancies. For each cancer site, estimated observed and relative survival is given at 1,3,5 and 10 years from diagnosis. The precision of such estimates depends largely on the number of cases followed up. Table 1 on page 5 provides this information for each site, with an age breakdown in each site report. Caution is needed for sites such as bone, testis and thyroid, which might be described as â€œrare cancersâ€? owing to low frequency. Figures 1 to 4 (on pages 6 and 7) provide the overall graphical summary of relative survival at 5yrs by cancer site together with 95% confidence intervals to illustrate the effect of chance variation. Survival at 5 years ranges from less than 10% to over 80%. Survival is highest for testes in males and melanoma in women. However survival is very low for oesophagus, lung, liver and pancreas in both males and females. Survival is also low for stomach and brain cancer. These highlight possible areas to focus attention upon. Some evidence of improvements between 1989-1993 (period 1) and 1994-1998 (period 2) can be seen in these figures. For example, the increase in survival for all malignancies in both males and females appears significant, the confidence intervals being well separated. However the primary purpose of this report is not to quantify such trends but rather to address data quality issues and to provide a suitable baseline for cancer control. This topic will be dealt with more specifically in a future report. The detailed reports in 2.1 â€“ 2.29 include presentation of survival statistics by period and gender followed by a graphical summary of relative survival at 1yr and 5 yrs by agegroup and period. Thus survival between 1989-1993 (period 1) and 1994-1998 (period 2) provides a very crude measure of improvement from 1991 to 1996. There have been absolute increases in 5-year survival for prostate (+12%), breast (+6%), melanoma (+11%) and colorectal (+6%). There has been no improvement for oesophagus, stomach, pancreas and lung at 5-years, however stomach survival at 1-year shows a modest increase (+4%), which may be due to better treatment. The overall increase for all malignancies was +5% for males and +3% for females at 5-years. The apparent better survival for females over males for all malignancies is largely explained by case mix, since there are more breast cancers in females and more lung cancers in males. Thus males have a higher proportion of the cancers with poorer survival. However, the recent increase in survival of prostate cancers may help explain the bigger improvement in survival for males as compared females over this period for all malignancies. Comparisons have also been made between the NHS Regional Offices areas, as a proxy for Cancer Networks. There some differences in survival between these areas but few of these are statistically significant. The lower 5-year survival for both males and females for all malignancies in South Wales might be due in part to socio-economic factors. Inequalities in survival will form a substantial topic for a future report. These survival results are generally comparable with those produced by other UK registries, but slightly less comparable with forthcoming results to be published by Eurocare owing to differences in methodology. We hope that they prove useful to clinicians, public health specialists, strategic planners and policy makers involved in the process of Cancer Control.
Cancer Survival in Wales 1989-1998
Cancer Incidence in Wales 1992-2001: Publication Date - December 2002
The Welsh Cancer Intelligence and Surveillance Unit (WCISU) has published Cancer Incidence Statistics for the period 1992-2001 on December 13th 2002. The previous report covered the years 1989-1998. In common with most cancer registries, WCISU has reported on the main cancer sites (26) separately together with the summary category of all malignancies but excluding the non-melanoma skin cancers. Each chapter provides both quick summary statistics and more detailed information regarding cancer incidence in Wales. Age standardised rates for Wales are shown separately for the years 1992-2001. Trends are plotted. A bar chart is used to compare rates for 1992-2001 between the 22 Unitary Authorities in Wales, together with maps of relative risk. Comparisons are made with the latest available European figures, EUCAN 1997. Over the period 1992-2001 there were on average 14,700 new malignancies per year registered amongst people living in Wales. Around 1 in 8 males and 1 in 6 females can expect to develop cancer before the age of 65yrs, the lifetime risk being about 1:3. The most common cancer sites in males are lung, prostate and colon, and in females, breast, lung and colon. Lung cancer incidence reflects smoking prevalence and the industrial areas of Wales have higher rates. Whilst lung cancer is definitely decreasing in males, there is as yet little sign of a reduction in females. In fact in association with increased use of PSA testing, since 1999 prostate rates are higher than lung cancer. Breast cancer incidence continues to be higher in the rural West and North West of Wales. It appears that cancer rates in Wales in 1997 are higher than the UK average for both males and females. This reflects past statistics. The reasons for this inequality are not yet fully understood but it is likely to have something to do with lifestyle and diet. This publication was updated in May 2003, revised mid-year population estimates used.
Cancer Incidence in Wales 1992-2001
Cancer Incidence in Wales 1989-1998: Publication date - November 2001
This report is the third volume in an on-going series of statistical reports produced for the NHS in Wales by the Welsh Cancer Intelligence and Surveillance Unit.
In this report we focus on the Unitary Authority as the most relevant sub division of Wales. An import application of our data is the planning of better cancer services, thus we have included, for all the major cancer sites, summary information on the general burden of disease as well as trends.
Cancer Incidence in Wales 1989-1998
Cancer Registration and Survival in Wales 1985-1994: Publication date - November 1999
This volume is the first one to contain statistics of population based survival in Wales since an electronic database was set up in 1974.
The diagnostic cohort 1985-1989 represents data inherited from the Wales Cancer Registry. We have tried our best to clean up the data by re-matching and checking deaths with ONS as well as validating any queries on incidence directly with case notes where these are available.
Cancer Registration and Survival in Wales 1985-1994
Last updated: 28/09/2010