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Table 4 Comparison of postoperative endothelial parameters between three groups

From: Effect of IOP based infusion system with and without balanced phaco tip on cumulative dissipated energy and estimated fluid usage in comparison to gravity fed infusion in torsional phacoemulsification

 

Group A (n = 42)

Group B (n = 42)

Group C (n = 42)

p value

A vs. B

A vs. C

B vs. C

 

ECD Pre-op (cell/mm2)

0.876

0.804

0.793

0.605

Anova

 Mean ± SD

2516.00 ± 211.54

2527.17 ± 199.39

2503.86 ± 212.23

 

ECD 1 week

0.712

0.959

0.499

0.463

Anova

 Mean ± SD

2321.52 ± 201.18

2323.74 ± 196.11

2291.21 ± 207.79

 

ECD 1 month

0.750

0.958

0.538

0.504

Anova

Mean ± SD

2227.45 ± 192.59

2229.69 ± 191.33

2200.00 ± 213.59

 

ECD 3 months

0.802

0.909

0.618

0.546

Anova

 Mean ± SD

2122.69 ± 192.24

2127.48 ± 191.61

2099.95 ± 223.45

 

ECD 6 months

0.515

0.558

0.378

0.308

Kruskal Wallis

 Mean ± SD

2007.24 ± 196.61

2012.07 ± 190.15

2005.81 ± 216.72

 

CCT Pre-op (μm)

0.777

0.514

0.951

0.561

Anova

 Mean ± SD

531.21 ± 25.45

526.88 ± 34.47

531.67 ± 40.52

 

CCT 1 week

0.996

0.988

0.946

0.943

Anova

 Mean ± SD

549.81 ± 23.32

549.71 ± 33.81

550.29 ± 39.25

 

CCT 1 month

0.949

0.794

0.943

0.781

Anova

 Mean ± SD

538.79 ± 24.52

537.10 ± 33.77

539.29 ± 38.11

 

CCT 3 months

0.578

0.792

0.479

0.301

Kruskal Wallis

Mean ± SD

528.10 ± 24.79

523.83 ± 31.7

528.33 ± 39.39

 

CCT 6 month

0.632

0.847

0.39

0.439

Kruskal Wallis

 Mean ± SD

525.57 ± 24.39

524.43 ± 33.84

526.81 ± 39.55

 

CV Pre-op (%)

0.022

0.017

0.017

0.832

Kruskal Wallis

 Mean ± SD

39.86 ± 3.85

38.00 ± 3.78

38.07 ± 3.80

 

CV 1 week

0.056

0.024

0.064

0.736

Kruskal Wallis

 Mean ± SD

44.14 ± 4.22

42.14 ± 3.82

42.60 ± 4.16

 

CV 1 month

0.082

0.038

0.55

0.105

Anova

 Mean ± SD

39.98 ± 3.87

38.24 ± 3.67

39.50 ± 3.38

 

CV 3 months

0.043

0.02

0.55

0.056

Kruskal Wallis

 Mean ± SD

39.21 ± 3.58

37.43 ± 3.61

38.90 ± 3.59

 

CV 6 months

    

Kruskal Wallis

 Mean ± SD

43.17 ± 3.30

40.64 ± 3.57

42.90 ± 3.47

0.001

0.001

0.52

0.004

 

6A Pre-op (%)

0.004

0.256

0.001

0.028

Kruskal Wallis

 Mean ± SD

49.88 ± 6.14

48.67 ± 5.80

45.45 ± 5.60

 

6A 1 week

0.051

0.569

0.02

0.073

Kruskal Wallis

 Mean ± SD

32.90 ± 5.56

31.90 ± 3.76

30.17 ± 4.50

 

6A 1 month

0.642

0.943

0.388

0.448

Kruskal Wallis

 Mean ± SD

38.36 ± 5.64

38.14 ± 4.18

37.36 ± 4.29

 

6A 3 months

0.997

0.964

0.928

0.986

Kruskal Wallis

 Mean ± SD

43.93 ± 4.97

43.69 ± 3.82

43.76 ± 3.97

 

6A 6 months

0.995

0.964

0.91

0.975

Kruskal Wallis

 Mean ± SD

45.93 ± 4.97

45.69 ± 3.82

45.74 ± 3.96

 
  1. ECD= endothelial cell density, CCT= central corneal thickness, CV= coefficient of variance, 6A= percentage of hexagonal endothelial cells