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Table 2 Comparison of risk factors for developing cardiac events

From: The heart’s exposure to radiation increases the risk of cardiac toxicity after chemoradiotherapy for superficial esophageal cancer: a retrospective cohort study

 

CE (n = 13)

Non-CE (n = 67)

P value

Patients

Age (y)

66 (60–74)

67 (62–73)

0.5308

Sex (male/female)

13/0

58/9

0.3419

BMI (kg/m2)

19.6 (17.8–22.6)

20.9 (18.7–23.1)

0.3894

Tumors

 Tumor location (Ce-Ut/Mt./Lt-Ae)

1/9/3

15/37/15

0.4009

 Tumor size (mm)

50 (30–75)

40 (20–50)

0.2255

 Macro findings (elevated/flat-depressed)

3/10

15/52

1.0000

Habits

 Smoking frequency (number/d)

20 (20–40)

20 (10–40)

0.1049

 Smoking history (y)

33 (25–46)

35 (20–45)

0.5633

 Brinkman index

1000 (600–1215)

750 (380–1170)

0.2117

Comorbidity

 Hypertension

6 (46.2%)

30 (52.6%)

1.0000

 Diabetes mellitus

2 (15.4%)

8 (14.0%)

0.6624

 Hyperlipidemia

1 (7.7%)

10 (17.5%)

0.6817

 History of cardiac disease

1 (7.7%)

4 (7.0%)

1.0000

  1. Data are presented as median (interquartile range), number, or number (%). CE, cardiac event; BMI, body mass index; Ce, cervical esophagus; Ut, upper thoracic esophagus; Mt., middle thoracic esophagus; Lt, lower thoracic esophagus; Ae, abdominal esophagus