Table 4 Statistical analysis of the preoperative and postoperative endothelial cell count

Paired samples statistics

Mean

N

Std. Deviation

Std. Error Mean

Pair 1

Preoperative ECC

2928.2000

4

214.66299

96.00021

Postoperative ECC

2817.2000

4

458.34779

204.97936

Paired samples test

Paired Differences

t

d f

Sig. (2-tailed)

Mean

Std. Deviation

Std. Error Mean

95% Confidence Interval of the Difference

Lower

Upper

Pair1

Preoperative ECC

Postoperative ECC

111.00000

590.56541

264.10888

-622.28380-

844.28380

.420

4

.696