Table 1 Characteristics of study population

From: Epigenome-wide analysis identifies DNA methylation mediators of treatment-related cardiometabolic risk in survivors of childhood cancer

Characteristics

Number

Percent (%)

Total participants

2938

100.0

Sex

  

 Male

1557

53.0

 Female

1381

47.0

Primary diagnosis

  

 Leukemia

1000

34.0

 Lymphoma

547

18.6

 Embryonal tumorsa

393

13.4

 CNS tumors

373

12.7

 Bone & soft tissue sarcoma

361

12.3

 Other diagnoses

264

9.0

Chemotherapy exposures

  

 Vinca alkaloids

2099

71.4

 Anthracyclines

1676

57.0

 Alkylating agents, classic

1665

56.7

 Antimetabolites

1418

48.3

 Corticosteroids

1336

45.5

 Epipodophyllotoxins

1034

35.2

 Asparaginase enzymes

924

31.4

Radiation therapy (RT)

  

 Brain-RT

779

26.5

 Body-trunk-RTb

783

26.7

  Chest-RT

608

20.7

  Abdominal-RT

536

18.2

  Pelvic-RT

461

15.7

Cardiometabolic Risk Factors (prevalentc)

N/N at Risk

Percent (95% CI)

 Obesity

1201/2929

41.0 (39.2–42.8)

 Hypertension

842/2882

29.2 (37.6–30.9)

 Hypertriglyceridemia

595/2914

20.4 (19.0–21.9)

 Hypercholesterolemia

477/2914

16.4 (15.0–17.8)

 Abnormal glucose

304/2936

10.4 (9.3–11.5)

Cardiometabolic risk factors (incidentd)

N/N at Risk

Percent (95% CI)

 Obesity

255/2929

8.7 (7.7–9.8)

 Hypertension

201/2882

7 (6.1–8)

 Hypertriglyceridemia

80/2914

2.7 (2.2–3.4)

 Hypercholesterolemia

50/2914

1.7 (1.3–2.3)

 Abnormal glucose

74/2936

2.5 (2–3.2)

Age, years

Median

(IQR)

 Age at diagnosis

6.1

(2.8–12.6)

 Age at DNA sampling

30.1

(21.6–38)

 Age at clinical follow-up

33.4

(25.4–41.8)

  1. CI confidence interval, CNS central nervous system, IQR interquartile range.
  2. aIncludes Wilms tumor, neuroblastoma, and germ cell tumor.
  3. bBody-trunk-RT includes irradiation to the chest, abdomen, and/or pelvis; many survivors received radiation to more than one of these regions.
  4. cPrevalent cases include events occurring before or after DNAm sampling.
  5. dIncident cases include only events that developed or worsened after DNAm sampling.