Table 6.
Intensities of the peaks for different categories of hormone-receptor status, Her2/neu and P53 expression and menopause status
| M/z 4276 | M/z 4292 | M/z 8129 | M/z 8941 | ||
| n |
Median intensity (IQR) |
Median intensity (IQR) |
Median intensity (IQR) |
Median intensity (IQR) |
|
| ER status | |||||
| Negative | 12 | 15.2 (0.7–70.6) |
18.3 (6.2–48.1) |
26.3 (25.2–28.5) |
39.9 (24.3–57.5) |
| Positive | 35 | 11.0 (3.9–24.3) |
14.5 (8.9–22.9) |
25.7 (17.9–28.2) |
30.5 (24.1–43.4) |
| p-value* | 47 | .961 | .696 | .421 | .380 |
| PR status | |||||
| Negative | 19 | 7.1 (4.0–29.3) |
10.9 (8.5–30.8) |
26.0 (21.7–27.8) |
31.3 (24.0–43.3) |
| Positive | 28 | 14.6 (1.8–28.2) |
15.4 (6.8–28.7) |
25.8 (19.5–29.6) |
32.1 (24.1–46.7) |
| p-value* | 47 | .649 | .696 | .762 | .588 |
| Her2/neu expression | |||||
| Negative | 35 | 11.0 (1.9–29.3) |
15.9 (5.6–29.5) |
25.9 (20.5–27.8) |
32.9 (24.1–46.9) |
| Positive | 12 | 9.5 (4.3–66.2) |
11.1 (9.1–43.2) |
26.0 (16.2–29.3) |
29.7 (23.3–41.7) |
| p-value* | 47 | .961 | .826 | .751 | .575 |
| P53 expression | |||||
| Negative | 18 | 6.5 (1.6–24.3) |
12.7 (5.3–31.3) |
23.7 (17.6–26.8) |
27.1 (17.7–42.6) |
| Positive | 23 | 11.0 (4.7–29.4) |
14.9 (8.9–29.5) |
26.5 (24.8–30.1) |
32.9 (27.8–60.8) |
| p-value* | 41 | .599 | .546 | .070 | .172 |
| Menopause status | |||||
| Premenopausal | 15 | 7.9 (1.9– 84.3) |
12.2 (10.1–69.2) |
27.6 (22.2–32.7) |
29.0 (22.7–43.3) |
| Postmenopausal | 30 | 10.2 (2.0–25.6) |
14.3 (5.5–29.8) |
25.3 (17.8–26.6) |
32.1 (24.2–45.4) |
| p-value* | 45 | .942 | .580 | .030 | .563 |
M/z = Mass to Charge ratio, IQR = Inter-Quartile Range, * Mann-Whitney U Test, ER = Oestrogen Receptor, PR = Progesterone Receptor