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Table 3 Table of raw p-values for Welch t-statistics and limma methods using and from the apoAI control treatment expression data.

From: Proportion statistics to detect differentially expressed genes: a comparison with log-ratio statistics

rank

p-value ()

rank

p-value ()

rank

p-value(limma ())

rank

p-value(limma ())

1

7.3 × 10-7

1

4.2 × 10-6

1

3.8 × 10-12

1

1.5 × 10-9

2

2.4 × 10-5

2

2.4 × 10-5

4

5.2 × 10-7

4

1.3 × 10-6

3

3.4 × 10-5

4

4.0 × 10-5

2

2.6 × 10-8

3

1.2 × 10-7

4

5.0 × 10-5

3

2.8 × 10-5

3

5.1 × 10-8

2

7.6 × 10-8

5

1.0 × 10-4

6

1.2 × 10-4

5

1.4 × 10-6

6

7.5 × 10 -6

6

1.0 × 10-4

5

5.8 × 10-5

7

9.6 × 10-6

7

1.2 × 10-5

7

2.9 × 10-4

7

2.7 × 10-4

12

4.5 × 10-5

11

3.7 × 10-5

8

5.9 × 10-4

9

6.4 × 10-4

8

1.3 × 10-5

16

4.8 × 10-5

9

7.4 × 10-4

8

5.8 × 10-4

10

1.5 × 10-4

61

3.3 × 10-4

10

1.3 × 10-3

10

1.1 × 10-3

6

2.0 × 10-6

5

1.4 × 10-6

rank

t-stat ()

rank

t-stat ()

rank

t-stat(limma ())

rank

t-stat(limma ())

1

-16.5

1

-12.8

1

-23.1

1

-14.4

2

-9.8

2

-9.8

4

-9.0

4

-8.3

3

-9.3

4

-9.1

2

-11.5

3

-10.1

4

-8.8

3

-9.6

3

-10.9

2

-10.5

5

-7.9

6

-7.7

5

-8.2

6

-7.0

6

-7.8

5

-8.5

7

-6.7

7

-6.7

7

6.6

7

6.7

12

5.9

11

6.0

8

-5.9

9

-5.8

8

-6.7

16

-5.9

9

-5.7

8

-5.9

10

-5.2

61

-4.8

10

5.2

10

5.3

6

8.0

5

8.2

  1. The limma method was developed for log-ratios, not proportions, but we show the results using proportions for comparison. The first group of ten rows are the p-values and the second group is the t-statistics, for reference. In the original paper, the top 8 probes were selected using the maxT multiple testing procedure with using Welch t-statistics on in [12]. This selection is the first column, ranked 1 through 10. The p-values/t-statistics for the probes using and limma correspond to the first column, with their ranks shown. Using t-statistics with , the selection is similar to , but not identical, since probes ranked 8th and 9th switch places. Using limma with and , the selection begins to vary widely at the 7th probe.