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Cancer in Children, Adolescents, and Young Adults
Cancer in children is rare when compared to cancer occurring in adults. About 15,000 children younger than 20 are diagnosed with cancer each year in the United States. Pediatric cancer death rates have dropped by nearly 70% over the past 40 years. Cancer is still the leading cause of death from disease among children from birth to age 14.
No exact definition exists to differentiate childhood cancers from adolescent and young adult cancers. Cancers in young adults are those that start between the ages of 20 to 39 years of age. Eighty thousand young adults ages 20-39 are diagnosed with cancer each year.
The most common types of cancer in children aged 0 to 14 years are:
- Bone
- Brain and spinal cord tumors
- Leukemia
- Lymphoma (Hodgkin and non-Hodgkin)
- Neuroblastoma
- Retinoblastoma
- Rhabdomyosarcoma
- Wilms tumor
The most common types of cancer in adolescents aged 15 to 19 years are:
- Brain and spinal cord tumors
- Leukemia
- Lymphoma
- Melanoma
- Ovarian
- Sarcoma
- Testicular
- Thyroid
The most common types of cancer in young adults aged 20 to 39 are:
- Breast
- Brain and spinal cord tumors
- Colorectal
- Gynecological
- Lymphoma
- Melanoma
- Sarcoma
- Testicular
- Thyroid
Risk Factors
Risk factors influence a person’s chance of getting cancer, but this occurs over a longer duration of time. Risk factors are not thought to increase children’s , adolescents, or young adults risk for cancer as in older adults with lifestyle behaviors, such as smoking, alcohol use, etc.
Other risk factors that could be associated with cancer in children are radiation exposure or other environmental exposures and acquired or inherited gene mutations.
Other risk factors that could increase the chance of an adolescent or young adult getting cancer are environmental exposures, acquired or inherited gene mutations, ultraviolet (UV) radiation from tanning beds, and treatment from a childhood cancer, HPV infection, and human immunodeficiency virus (HIV) infection.
Prevention and Early Detection
Lifestyle risk factors, such as smoking, being overweight, not exercising, and eating unhealthy foods, play a role in many types of adult cancers. However, most lifestyle risk factors do not play a role in childhood cancers. Since cancer in children is rare, it is hard to detect if no symptoms are present.
Some children inherit DNA changes (mutations) from a parent that increase their risk of certain types of cancer. These changes are present in every cell of the child’s body, and they can often be tested for in the DNA of blood cells or other body cells. Some of these DNA changes are linked only with an increased risk of cancer, while others can cause syndromes that also include other health or developmental problems.
However, most childhood cancers are not caused by inherited DNA changes. They are the result of DNA changes that happen early in the child’s life, sometimes even before birth. Every time a cell divides into two new cells, it must copy its DNA. This process isn’t perfect, and errors sometimes occur, especially when the cells are growing quickly. This kind of gene mutation can happen at any time in life and is called an acquired mutation.
Some risk factors that can be reduced in adolescents are limiting exposure to environmental risk factors, such as radiation exposure and UV radiation, and receiving the HPV vaccine. No cancer screening tests for children and adolescents are recommended, as cancer is not common for this age group. Cancer is not usually screened for if there are no signs or symptoms.
For young adults, reasons why cancer may not be detected early on include infrequent visits to the doctor or not having a primary care doctor. Financial issues and insurance coverage may impact whether or not a person goes to the doctor. Cancers are not common between ages 20 and 39. Many screening tests to look for cancer in people in this age group are not recommended unless they have an increased risk.
Incidence: Cancer in Children, Adolescents, and Young Adults
Figure 13 below summarizes the incidence rate for all childhood invasive cancers combined for 2017 in Illinois.
All Childhood Invasive Cancers Combined by Age Group per 1,000,000 for 2017 in Illinois
2017 Incidence for Ages 0-14 per 1,000,000 Population in Illinois
Cancer Type | Incidence (per 1,000,000) |
---|---|
I Leukemia |
127 |
I(a) Lymphoid leukemias |
88 |
I(b) Acute myeloid leukemias |
24 |
II Lymphoma and reticuloendothelial neoplasms |
57 |
II(b) Non-Hodgkin lymphomas (except Burkitt lymphoma) |
23 |
II(d) Miscellaneous lymphoreticular neoplasms |
16 |
III CNS and misc intracranial and intraspinal neoplasms |
64 |
III(b) Astrocytomas |
32 |
III(c) Intracranial and intraspinal embryonal tumors |
19 |
IV Sympathetic nervous system tumors |
22 |
IV(a) Neuroblastoma and ganglioneuroblastoma |
22 |
VI Renal tumors |
34 |
VI(a) Nephroblastoma and other nonepithelial renal tumors |
31 |
IX Soft-tissue sarcomas |
26 |
X Germ-cell, trophoblastic and other gonadal neoplasms |
21 |
XI Carcinomas and other malignant epithelial neoplasms |
23 |
2017 Incidence for Ages 15-19 per 1,000,000 Population in Illinois
Cancer Type | Incidence (per 1,000,000) |
---|---|
I Leukemia |
31 |
I(a) Lymphoid leukemias |
17 |
II Lymphoma and reticuloendothelial neoplasms |
47 |
II(a) Hodgkin lymphomas |
29 |
III CNS and misc intracranial and intraspinal neoplasms |
20 |
VIII Malignant bone tumors |
16 |
IX Soft-tissue sarcomas |
22 |
X Germ-cell, trophoblastic and other gonadal neoplasms |
27 |
X(c) Malignant gonadal germ cell tumors |
24 |
XI Carcinomas and other malignant epithelial neoplasms |
59 |
XI(b) Thyroid carcinomas |
27 |
XI(f) Other and unspecified carcinomas |
24 |
2017 Incidence for Ages 20-39 per 100,000 Population in Illinois
Cancer Type | Incidence (per 100,000) |
---|---|
Brain and Other Nervous System |
98 |
Breast |
506 |
Cervix Uteri |
112 |
Colon and Rectum |
194 |
Corpus Uteri |
64 |
Kidney and Renal Pelvis |
90 |
Leukemias |
118 |
Lung and Bronchus |
37 |
Melanoma of the Skin |
314 |
Non-Hodgkin Lymphoma |
126 |
Oral Cavity and Pharynx |
59 |
Ovary |
65 |
Pancreas |
25 |
Stomach |
31 |
Thyroid |
392 |
Urinary Bladder, invasive and in situ |
26 |
Mortality: Cancer in Children, Adolescents, and Young Adults
2013-2017 Mortality for Ages 0-14 per 100,000 Population in Illinois
Cancer Type | Mortality (per 100,000) |
---|---|
Acute Lymphocytic Leukemia |
25 |
Acute Myeloid Leukemia |
23 |
Brain and Other Nervous System |
74 |
Endocrine System |
26 |
Leukemias |
62 |
Other Endocrine including Thymus |
26 |
Soft Tissue including Heart |
20 |
2013-2017 Mortality for Ages 15-19 per 100,000 Population in Illinois
Cancer Type | Mortality (per 100,000) |
---|---|
Bones and Joints |
20 |
Brain and Other Nervous System |
32 |
Leukemias |
42 |
2013-2017 Mortality for Ages 20-39 per 100,000 Population in Illinois
Cancer Type | Mortality (per 100,000) |
---|---|
Brain and Other Nervous System |
187 |
Breast |
236 |
Cervix Uteri |
65 |
Colon and Rectum |
160 |
Esophagus |
19 |
Kidney and Renal Pelvis |
39 |
Leukemias |
140 |
Liver |
19 |
Lung and Bronchus |
73 |
Melanoma of the Skin |
67 |
Non-Hodgkin Lymphoma |
76 |
Oral Cavity and Pharynx |
31 |
Ovary |
46 |
Pancreas |
39 |
Stomach |
68 |
Strategies
The American Childhood Cancer Organization has identified action items specifically for childhood cancers.
- Research new, less toxic therapies for treating childhood cancer
- Ensure children diagnosed with cancer (and their families) have equitable access to quality health care and psychosocial programs
- Ensure equitable access to educational opportunities for children with cancer
- Ensure children (and their families) have knowledge of the long-term effects of childhood cancer treatment and have equitable access to high quality follow-up care
- Increase awareness of childhood cancer among families, health care professionals, schools, and society as a whole
In addition to the strategies listed elsewhere in this plan, the following lists strategies by topic area.
Research
- Work with state and national partners to support funding for pediatric cancer research
- Support research leading to new therapies targeted specifically for children with cancer that are effective and less toxic
- Promote basic/molecular research leading to an improved understanding of the causes of childhood cancers
Equitable Access to Quality Health Care and Psychosocial Programs
- Work with childhood cancer advocacy organizations to support efforts aimed at improving pediatric cancer patients’ quality of life from diagnosis onward
- Identify and address family medical education needs (diagnosis, treatment, late-effects, support programs, sibling support, and respite care)
- Educate human resource professionals as to the full extent of resources available to pediatric cancer caregivers through the Family Medical Leave Act
- Provide strong recommendation for parents and caregivers to receive early and ongoing assessment of their mental health needs
- Provide bereavement follow-up for parents/caretakers
Health Care Providers/Insurers
- Expand workforce training in pediatric palliative care
- Increase awareness of clinical trial in the pediatric/adolescent population
Equitable Access to Education
- Educate patients, parents, and educators on academic challenges faced by childhood cancer patients
- Work with school intervention specialists to raise awareness among patients, families, educators, and administrators of the support that should be available through the school system
Long-term Effects
- Increase education about long-term consequences of cancer treatment for pediatric, adolescent, and young adult patients
- Educate families about the need for long-term follow-up care to monitor the late effects of childhood cancer treatment and to promote healthy survivorship
- Promote utilization of recommendations/standards for follow-up care (COG Passport for Care, Psychosocial Standards of Care Project for Childhood Cancer)
Awareness
- Increase general awareness of the incidence and impact of pediatric cancer on children in Illinois
- Increase awareness of the need for novel pediatric cancer therapies
- Increase awareness of the impact of pediatric cancer on survivors and their families