Completeness of cancer registration: a new method for routine use

J, Bullard; Coleman, Michel P; Robinson, David; Jm, Lutz; Bell, James; Peto, Julian

doi:10.1054/bjoc.1999.1048

Cited by 62 publications

(56 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We matched a higher, but still fairly low, proportion (44%) of people from the CDSC data with Burkitt's lymphoma or immunoblastic lymphoma and a first report from a region located wholly or partly within the TCR catchment area to a TCR NHL record. The overall completeness of registrations 5 years after diagnosis has been estimated as 92% (Bullard et al, 2000), but failure to register cancers may be more likely in HIV-infected people than the general population. Overall, any incompleteness of cancer Bold values indicate cancer sites where the 95% confidence interval does not include one.…”

Section: Discussionmentioning

confidence: 99%

The risk of cancer in HIV-infected people in southeast England: a cohort study

Newnham

Harris²,

Evans

et al. 2004

Br J Cancer

View full text Add to dashboard Cite

This study used data from the Communicable Disease Surveillance Centre's national HIV database and the Thames Cancer Registry to assess the risk of cancer in HIV-infected people in southeast England. Among 26 080 HIV-infected men with 158 660 person-years follow-up, 1851 cancers, and among 7110 HIV-infected women (31 098 person-years), 171 cancers were identified. The standardised incidence ratio (SIR) for all non-AIDS-defining cancers was significantly increased in HIV-infected men (2.8, 95% confidence interval (CI) 2.6 -3.1) but was nonsignificant in HIV-infected women (1.1, 95% CI 0.8 -1.6). Most of the cancers observed were in men (n ¼ 1559) and women (n ¼ 127) with AIDS, and among them, the SIR for all non-AIDS-defining cancers was significantly increased in men (8.2, 95% CI 7.2 -9.2) and women (2.8, 95% CI 1.6 -4.6). The SIR for all non-AIDS-defining cancers was only just significantly increased in men with HIV-infection but not AIDS (1.2, 95% CI 1.0 -1.5) and was nonsignificant in such women (0.8, 95% CI 0.5 -1.2).

show abstract

Section: Discussionmentioning

confidence: 99%

The risk of cancer in HIV-infected people in southeast England: a cohort study

Newnham

Harris²,

Evans

et al. 2004

Br J Cancer

View full text Add to dashboard Cite

show abstract

“…We found the lowest risks in North East Thames (RR = 0.79, 95% CI: 0.73-0.84) and the highest risks in Scotland (RR = 1.32, 95% CI: 1.25-1.38), but no consistent north-south gradient. The lower risk in North East Thames may, at least partly, reflect relative underascertainment, which was a particular problem with this registry prior to 1986 (Best and Wakefield, 1999;Bullard et al, 2000).…”

Section: Geographical Variationmentioning

confidence: 98%

Spatial variation and temporal trends of testicular cancer in Great Britain

et al. 2001

View full text Add to dashboard Cite

Increases in testicular cancer incidence have been reported in several countries over a long period. Geographical variability has also been reported in some studies. We have investigated temporal trends and spatial variation of testicular cancer at ages 20–49 in Britain. Temporal trends in testicular cancer incidence were examined, 1974 to 1991 and in mortality, 1981–1997. Spatial variation in incidence was analysed across electoral wards, 1975 to 1991. We used Poisson regression to examine for regional and socio-economic effects and Bayesian mapping techniques to analyse small-area spatial variability. Incidence increased from 6.5 to 11.1 per 100 000 in men at ages 20–34, and from 5.6 to 9.7 per 100 000 in men at ages 35–49, while mortality declined by 50% in both age groups. Risks of testicular cancer varied across regional cancer registries, ranging from 0.79 (95% CI: 0.73–0.84) to 1.32 (95% CI: 1.25–1.38), and was higher in the most affluent compared with the most deprived areas. Analyses within 2 regions (one predominantly urban, the other predominantly rural) did not indicate any localized geographical clustering. The increasing incidence contrasted with a decreasing mortality over time in Great Britain, similar to that found in other countries. The higher risk in more affluent areas is not consistent with findings on social class at the individual level. The absence of any marked geographical variability at small area scale argues against a geographically varying environmental factor operating strongly in the aetiology of testicular cancer. © 2001 Cancer Research Campaign http://www.bjcancer.com

show abstract

“…Concerning quantitative methods, we estimated completeness of incidence data by applying the flow method proposed by Bullard et al [16]. The flow method estimates completeness of incidence data by taking into consideration the logical flow of the registration process and requires information on data from first registration of a cancer case, a copy of all death certificates with cancer as cause of death (''mentioning cancer'') and the knowledge whether or not a cancer case was death certificate-initiated (DCI).…”

Section: Evaluation Of Biasmentioning

confidence: 99%

“…This method estimates the probability of a patient diagnosed with cancer still being alive at time t after diagnosis, the probability of the death certificate of a patient including a mention of cancer, and the probability of a patient surviving until time t after diagnosis still being unregistered. Using these three probabilities the completeness at time t after diagnosis is estimated; details can be found in [16,17]. Our analysis was performed for year of diagnosis 1999.…”

Section: Evaluation Of Biasmentioning

confidence: 99%