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Table 3 The Z-log-transformed intensities of the peaks detected with SELDI-TOF MS, ordered by their m/z.

From: Searching for early breast cancer biomarkers by serum protein profiling of pre-diagnostic serum; a nested case-control study

 

Cases

(n = 65)

Controls

(n = 65)

 

Paired

T test

M/z

Mean

Z-log-transformed

intensity (SD)

Mean

Z-log-transformed

intensity (SD)

Intensity in cases

vs. controls

p-value

2958

0.06 (0.95)

-0.03 (1.02)

-

.61

3323

0.21 (0.98)

-0.19 (0.97)

Higher

.02

3888

0.12 (1.00)

-0.13 (0.99)

-

.18

4649

0.03 (0.95)

-0.02 (1.00)

-

.80

4824

-0.09 (0.85)

0.13 (1.11)

-

.21

5343

0.09 (0.87)

-0.05 (1.08)

-

.43

5911

0.00 (0.76)

0.03 (1.16)

-

.86

6117

0.03 (0.90)

-0.01 (1.06)

-

.81

6439

0.09 (0.99)

-0.11 (1.01)

-

.27

6637

0.11 (0.97)

-0.10 (1.03)

-

.23

6842

0.08 (1.01)

-0.07 (1.00)

-

.43

6948

-0.12 (1.01)

0.14 (0.93)

-

.15

7476

-0.04 (0.94)

0.05 (1.06)

-

.62

7772

0.06 (0.95)

-0.08 (1.05)

-

.45

7978

0.11 (0.97)

-0.12 (1.02)

-

.21

8148

0.11 (0.97)

-0.12 (1.02)

-

.21

8609

-0.04 (1.02)

0.07 (0.97)

-

.55

8938

0.19 (1.02)

-0.14 (0.94)

Higher

.06

9294

0.03 (0.89)

0.00 (1.03)

-

.88

9427

0.15 (1.09)

-0.17 (0.88)

-

.08

9501

0.06 (0.87)

-0.05 (1.06)

-

.54

13892

-0.08 (0.97)

0.12 (0.95)

-

.26

  1. M/z: mass-to-charge ratio; SD: standard deviation; -: No statistically significant difference in intensity