Adolescent and young adult cancers in India–Findings from the National Cancer Registry Programme
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- Title : Adolescent and young adult cancers in India–Findings from the National
Cancer Registry Programme - Author:Prashant Mathur *, Anita Nath , Sathish Kumar K
- Publication: Cancer Epidemiology
- Publisher: Elsevier Inc
- Year: 2022
- Language: English
- Pages: 9
- Format: PDF
- File size: 1.884 KB
- DOI: 10.1016/j.canep.2022.102124
- CBID: CBR223
Abstract
Background
The adolescent and young adult (AYA) age group is a bridge between pediatric and adult age groups. The present study describes the epidemiology of cancers in the AYA age group in India.
Methods
The data of primary site cancers in the age group of 15–39 years from the 28 Population Based Cancer Registries (PBCRs’) and 58 Hospital Based Cancer Registries under the National Cancer Registry Programme for the reporting year 2012–2016 was analysed.
Results
The median age adjusted incidence rate (AAR) was 22.2 per 100,000 among males and 29.2 per 100,000 among females. The age-specific incidence rate increased with increasing age in both genders with the highest recorded numbers in the 35–39 age group. The proportion of myeloid leukaemia and non-Hodgkin’s lymphoma was highest in the 15–24 age group. Cancers of the breast, thyroid, mouth and tongue constituted the leading sites between 30 and 39 years. There was a significant increase in the incidence among AYA males (APC=0.9) between 1985 and 2015, while a decline in incidence was observed for females, which was not significant (APC=−0.2). The majority of patients had locoregional spread of cancer at the time of diagnosis. The projected number of cancer cases in both genders are expected to increase to 178,617 in 2025.
Conclusion
Cancers in the AYA population are a concern in India. Since AYA oncology appears to be evolving in India, a robust health care system and suitable AYA cancer care policies and programmes are strongly needed to improve disease outcomes and survival.
Highlights
- • The Age Adjusted Incidence Rate for AYA cancers (15–39 years) was found to be higher in females than males.
- • Breast, thyroid, mouth and tongue cancers were the leading sites between 30 and 39 years
- • The there has been a significant rise in breast cancer and decline in cervical cancer incidence over more than two decades.
- • Majority of the AYA cancer patients had a locoregional disease spread at the time of diagnosis.
- • Projected number of AYA cancer cases are expected to increase to 178,617 in 2025.
1
Introduction
Rapid transitions in life characterise the adolescent and young adult (AYA) age group. Therefore, a diagnosis such as cancer is least expected and could be overlooked. The Adolescent and Young Adult Oncology Progress Review Group define AYA cancers occurring in the age group of 15–39 years . AYA cancers are characterised by their distinct biology and types . The proportion of leukaemias and lymphomas tend to be higher in the AYA population than in adults. The histologic pattern of specific central nervous system (CNS) tumours may differ from those reported in adults over 40 years . In the pediatric age group, cancers tend to be of embryonic origin, whereas the origin is mainly epithelial in adults. Hence cancers in the AYA group constitute a bridge between the two age groups and exhibit heterogenous responses to therapy. There does not appear to be any significant improvement in cancer treatment and outcomes in this age group in countries with a lower Socio-Demographic Index . Moreover, the traditional healthcare systems segregated for pediatric and adult age groups could be insufficient to address this particular age group and their transitions.
Globally, in 2018, 1.2 million cancer cases and 400 000 deaths were recorded in the 15- to 39-year age group . Most studies on AYA cancers in India have been hospital-based and reported varying proportions and age group definitions . Data from Population Based Cancer Registries (PBCRs’ would help understand the incidence, trends, geographical distribution, and types of AYA cancers at the population level, which would help adopt suitable prevention and control measures and strengthen health systems for appropriate care. Data from Hospital Based Cancer Registries (HBCRs) generate clinical data which reflects upon cancer care at the concerned hospital. The present study describes the epidemiology of cancers in AYA age group of 15–39 years in India, based on recent data from the PBCRs’ and HBCRs’ under the National Cancer Registry Programme (NCRP)
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