Completeness of T, N, M and stage grouping for all cancers in the Mallorca Cancer Registry

BACKGROUND

TNM staging of cancer is used to establish the treatment and prognosis for cancer patients, and also allows the assessment of screening programmes and hospital performance. Collection of staging data is becoming a cornerstone for cancer registries. The objective of the study was to assess the completeness of T, N, M and stage grouping registration for all cancers in the Mallorca Cancer Registry in 2006-2008 and to explore differences in T, N, M and stage grouping completeness by site, gender, age and type of hospital.

METHODS

All invasive cancer cases during the period 2006-2008 were selected. DCO, as well as children's cancers, CNS, unknown primary tumours and some haematological cases were excluded. T, N, M and stage grouping were collected separately and followed UICC (International Union Against Cancer) 7th edition guidelines. For T and N, we registered whether they were pathological or clinical.

RESULTS

Ten thousand two hundred fifty-seven cases were registered. After exclusions, the study was performed with 9283 cases; 39.4 % of whom were women and 60.6 % were men. T was obtained in 48.6 % cases, N in 36.5 %, M in 40 % and stage in 37.9 %. T and N were pathological in 71 % of cases. Stage completeness exceeded 50 % in lung, colon, ovary and oesophagus, although T also exceeded 50 % at other sites, including rectum, larynx, colon, breast, bladder and melanoma. No differences were found in TNM or stage completeness by gender. Completeness was lower in younger and older patients, and in cases diagnosed in private clinics.

CONCLUSIONS

T, N, M and stage grouping data collection in population-based cancer registries is feasible and desirable.

[Treatment of prostate cancer according to life expectancy, comorbidity and clinical practice guidelines]

BACKGROUND

To describe the treatment of prostate cancer patients according to life expectancy, risk and comorbidity, to examine the degree to which Clinical Practice Guidelines (CPG) are followed, and to register secondary effects after one year.

METHODS

Retrospective study of patients diagnosed with prostate cancer in a hospital in 2011. Socio-demographic variables, as well as comorbidity (Charlson index), tumor characteristics, treatments and secondary effects were collected. A bivariate analysis was performed using the Chi square test.

RESULTS

One hundred and fourteen patients were identified. Life expectancy was higher than 10 years in 92.1%; 50% had low comorbidity, 36% medium and 14% high. Surgery was performed in 56.2%, more often in patients with intermediate-risk and low comorbidity; radiotherapy in 13.2%, more often in patients with high-risk and low comorbidity; hormonal therapy in 21.9%, more often in patients with medium comorbidity, and deferred treatment in 12.3%. CPG recommendations were not followed in 38.6%, especially in high-risk patients, 58.1%. Regarding adverse effects, 70% of patients treated with surgery presented urinary incontinence, and 48.3% erectile dysfunction. On the other hand, 17.15% of patients treated with hormonal therapy presented a cardiovascular disease, and 32.5% worsening of a cardiovascular risk factor.

CONCLUSIONS

Treatment of prostate cancer takes into account risk and comorbidity, but there could be improvement in following CPG guidelines, especially in elderly patients. It is advisable to develop preventive strategies to avoid cardiovascular effects in patients with hormonal therapy.