Incidence of Childhood Cancer in Osaka, Japan, 1971–1988: Reclassification of Registered Cases by Birch's Scheme Using Information on Clinical Diagnosis, Histology and Primary Site

Ajiki, Wakiko; Hanai, Aya; Tsukuma, Hideaki; Hiyama, Tomohiko; Fujimoto, Isaburo

doi:10.1111/j.1349-7006.1994.tb02074.x

Cited by 21 publications

(16 citation statements)

References 13 publications

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“…The decrease in Osaka may have been partly due to changes in the diagnosis or classification of ALL and ANLL, although the authors were of the opinion that most of the leukaemia changes they observed were real (Ajiki et al, 1994 (Coebergh et al, 1989). In north-west England 1954-88, there was no significant trend in the incidence of childhood ANLL (Blair and Birch, 1994).…”

Section: Discussionmentioning

confidence: 99%

Childhood leukaemias in New Zealand: time trends and ethnic differences

Dockerty

Cox²,

Cockburn³

1996

Br J Cancer

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Summary Registrations from the New Zealand Cancer Registry were used to examine time trends in the incidence of leukaemias among children aged 0-14. There was a statistically significant increase in the incidence of leukaemia among children aged 0-4 during 1953-57 to 1988 -90. In this age group, the recorded incidence rate increased from 4.89 per 100 000 person -years in 1953 -57 to 7.92 in 19887.92 in -90. During 1973 to 1988-90 (and probably in earlier years), the increase was due to an increase in acute lymphoblastic leukaemia (ALL). The trends were unlikely to be due to changes in diagnosis or case ascertainment. The childhood leukaemia trends might be related to trends in family size, maternal age, socioeconomic level or exposure to infections. However, there are uncertainties about the importance of these factors or about their trends. The incidence of acute non-lymphoblastic leukaemia (ANLL) decreased between 1968-72 and 1988-90. The time trends highlight the likely importance of environmental factors in the aetiology of childhood leukaemias in New Zealand. The risk of ALL was lower in the Maori than in the non-Maori population (relative risk Maori/non-Maori 0.74). The risk of ANLL was higher among Maori (relative risk 1.84).

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Section: Discussionmentioning

confidence: 99%

Childhood leukaemias in New Zealand: time trends and ethnic differences

Dockerty

Cox²,

Cockburn³

1996

Br J Cancer

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“…The majority of these tumours are osteosarcoma or Ewing sarcoma (Stiller et al, 2006a), in the United Kingdom 54% being osteosarcoma, 39% Ewing sarcoma, 2% chondrosarcoma and 5% other types (Stiller, 2007). Worldwide, trends in incidence rates for childhood bone tumours have remained constant (McNally et al, 2001;Stiller et al, 2006a;Magnanti et al, 2008), although a few studies have reported increases (Ajiki et al, 1994;Gurney et al, 1996). The substantial improvement in survival over the past 40 years (Arndt et al, 2007) has been attributed to chemotherapy (Stiller et al, 2006a).…”

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confidence: 99%

Incidence and survival of childhood bone cancer in northern England and the West Midlands, 1981–2002

et al. 2009

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There is a paucity of population-based studies examining incidence and survival trends in childhood bone tumours. We used high quality data from four population-based registries in England. Incidence patterns and trends were described using Poisson regression. Survival trends were analysed using Cox regression. There were 374 cases of childhood (ages 0 -14 years) bone tumours (206 osteosarcomas, 144 Ewing sarcomas, 16 chondrosarcomas, 8 other bone tumours) registered in the period 1981 -2002. Overall incidence (per million person years) rates were 2.63 (95% confidence interval (CI) 2.27 -2.99) for osteosarcoma, 1.90 (1.58 -2.21) for Ewing sarcoma and 0.21 (0.11 -0.31) for chondrosarcoma. Incidence of Ewing sarcoma declined at an average rate of 3.1% (95% CI 0.6 -5.6) per annum (P ¼ 0.04), which may be due to tumour reclassification, but there was no change in osteosarcoma incidence. Survival showed marked improvement over the 20 years (1981 -2000) for Ewing sarcoma (hazard ratio (HR) per annum ¼ 0.95 95% CI 0.91 -0.99; P ¼ 0.02). However, no improvement was seen for osteosarcoma patients (HR per annum ¼ 1.02 95% CI 0.98 -1.05; P ¼ 0.35) over this time period. Reasons for failure to improve survival including potential delays in diagnosis, accrual to trials, adherence to therapy and lack of improvement in treatment strategies all need to be considered.

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“…[28] This is consistent with the findings in this study. There is a male predominance in the cases of lymphoma as a whole and also in the cases of Burkitt's lymphoma which is the general pattern in studies in other parts of the country and the world [2,3,7,9,[29][30][31][32][33][34][35][36][37][38][39][40].…”

Section: Discussionmentioning

confidence: 99%

“…This is similar to the findings in Jos, [15] Sokoto [19] and Lagos. [2] In Europe, however, Burkitt's lymphoma appears in older children [34][35][36][37][38][39][40].…”

Section: Discussionmentioning

confidence: 99%

“…[20] Intracranial neoplasms are relatively more common in caucasians. [17][18][19][20][21][22][23][24][25][26][31][32][33][34][35][36][37][38][39][40] However, the incidence of intracranial tumours is lower in Poland than in other European countries [36] where lymphomas, bone tumours and gonadal tumours are more frequently diagnosed when compared to other European countries.…”

Section: Introductionmentioning

confidence: 99%

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Histopathological Pattern of Childhood Solid Tumours in Ilorin: A 28-Year Retrospective Review

Omotayo¹,

Duduyemi²,

Mo³

et al. 2013

AJMSM

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Background: Cancers and other non-communicable diseases were thought to be unimportant public health problems in developing countries because of the overwhelmingly high prevalence of communicable diseases. However, with improved health care facilities and extensive national immunization programmes, coupled with generally improving socio-economic status, malignant diseases are beginning to account for a significant percentage of childhood morbidity and mortality. The study aims to determine the morphological pattern, burden and demographic characteristics of paediatric solid malignancies seen at the University of Ilorin Teaching Hospital between January 1979 and December 2006. Methodology: The demographic characteristics of all cases of malignant solid neoplasms seen in children between the ages of 0 and 15 years were retrieved from the archives and recorded. The histopathological, cytological and the post-mortem slides of the recorded cases were retrieved and reviewed. Special staining techniques were employed where necessary. Results: Three hundred and twenty four cases of childhood solid malignant neoplasms were diagnosed over the study period. The prevalence of childhood malignant solid tumours in Ilorin is 311 per million children. The commonest tumour in this study is lymphoma representing 55.56% of total paediatric malignant solid neoplasms seen. Burkitt's lymphoma constituted the largest single entity (80% of all lymphomas). This was followed by nephroblastoma, retinoblastoma and bone tumours which accounted for 8.33%, 7.72% and 4.63% respectively. Intracranial tumours were relatively rare. Conclusion: The pattern of paediatric malignant solid neoplasms seen in Ilorin is similar to what obtains in other parts of Nigeria and African countries. Burkitt's Lymphoma is the commonest childhood malignancy in this study. Nephroblastoma is the second commonest childhood malignant solid neoplasm in Ilorin as against what was observed in other centres such as Ibadan, Ife and Jos where retinoblastoma is the second commonest after lymphoma.

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Incidence of Childhood Cancer in Osaka, Japan, 1971–1988: Reclassification of Registered Cases by Birch's Scheme Using Information on Clinical Diagnosis, Histology and Primary Site

Cited by 21 publications

References 13 publications

Childhood leukaemias in New Zealand: time trends and ethnic differences

Childhood leukaemias in New Zealand: time trends and ethnic differences

Incidence and survival of childhood bone cancer in northern England and the West Midlands, 1981–2002

Histopathological Pattern of Childhood Solid Tumours in Ilorin: A 28-Year Retrospective Review

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