Skip to main content

Table 4 The distribution of the IL-7 serum level according to the tumor characteristics

From: The role of interleukin‑7 serum level as biological marker in breast cancer: a cross‑sectional, observational, and analytical study

Grouping variables

Categories of grouping variables (n)

IL-/7 Median (25–75%)

P value

Histological subtype

IDC (NST) (165)

65.25 (29.4–166,0)

Kruskal–Wallis ANOVA test value H (2.0) = 6.30;

P = 0.043

ILC (20)

18.5 (6.9–150,3)

Other (28)

74.6 (23.4–148.0)

Axillar involvement

Yes (86)

70.9 (30.8–166.5)

Mann–Whitney adj z = 0.94; P = 0.348

No (127)

58.8 (22.9–147.0)

T-stage

T1 (103)

59.0 (22.8–144.1)

Kruskal–Wallis ANOVA test value

H = 0.3; P = 0.86

T2 (101)

64.0 (25.1–166.7)

T3 (9)

57.9 (26.9–182.0)

Stage

I (77)

52.1 (19.2–134.3)

Kruskal–Wallis ANOVA test value H = 1.72; P = 0.42

II (97)

63.6 (26–166.4)

III (39)

79.9 (23.9–169.3)

Grade

I (13)

42.4 (11.6–174.1)

Kruskal–Wallis ANOVA test value H (2.213) = 1.14;

P = 0.57

II (138)

62.4 (29.1–166.1)

III (62)

62.4 (16.8–129.2)

ER

Positive (169)

59.0 (23.9–159.3)

Mann–Whitney adj z = 0.53; P = 0.593

Negative (44)

66.1 (20.0–168.2)

PR

Positive (65)

40.5 (11.7–110.9)

Mann–Whitney adj z = 0.96; P = 0.334

Negative (148)

66.7 (29.9–168.1)

Her-2

Positive (40)

66.8 (26.6–140.0)

Mann–Whitney adj z = 1.42; P = 0.672

Negative (172)

61.1 (23.4–166.0)

Molecular surrogate subtypes

LumA (77)

71.1 (34.1–183.9)

Kruskal–Wallis ANOVA test value H (5.47) 4.0;

P = 0.247

LumB/HER2 neg (75)

51.1 (18.9–117.3)

LumB/HER2 pos (20)

52.6 (23.9–90.0)

Her-2 overexpression (19)

96.6 (43.9–225.3)

TN (22)

57.2 (17.9–151.0)

LVI

Positive (85)

62.6 (34.7–166.3)

Mann–Whitney adj z = 0.7; P = 0.484

Negative (128)

62.4 (23.1–156.0)

PNI

Positive (24)

69.0 (37.9–166.8)

Mann–Whitney adj z = 0.87; P = 0.385

Negative (80)

54.5 (22.9–158.1)