Paired Samples T-Test of Control Area (Before vs. After)

Variables

T

Degree

of Freedom

Significance

(Two-Tailed)

Average

Standard Deviation

Standard

Error

95% Confidence Interval

Lower Level

Upper Level

Pigmentation (before-after)

1.250

10.392

2.324

−3.613

6.113

0.538

19

0.597

Pore reduction (before-after)

4.900

66.587

14.889

−26.264

36.064

0.329

19

0.746

Redness (before-after)

20.600

58.008

12.971

−6.548

47.748

1.588

19

0.129

Porphyrin level (before-after)

−11.400

61.376

13.724

−40.125

17.325

−0.831

19

0.416