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Table 2 Correlation Analysis of Surgical Variables

From: Clinical outcomes of a beveled tip, ultra-high speed, 25-gauge pars plana vitrectomy system

A. Number of Surgical Steps Versus

r value

pvalue

Total Operative Time

0.593

< 0.0001*

Number of Times Ancillary Instrument Used

0.483

0.0004*

Postoperative Day 1 IOP

0.293

0.0388*

Shave Vitrectomy Time

0.195

0.1757

Core+Shave Victrectomy Time

0.195

0.1757

Core Vitrectomy Time

0.116

0.4241

logMAR change

0.046

0.7532

B. Number of Times Ancillary Instrument Used Versus

Pearson r

pvalue

Total Operative Time

0.535

0.0001*

Postoperative Day 1 IOP

−0.066

0.6476

Core Vitrectomy Time

0.044

0.7599

logMAR change

0.018

0.9006

Shave VItrectomy Time

−0.030

0.8362

Core+Shave Victrectomy Time

−0.011

0.9397

C. Postoperative Day 1 IOP Versus

rvalue

pvalue

Number of Surgical Steps

0.293

0.0388*

Total Operative Time

0.178

0.2158

Number of Times Ancillary I trument Used

−0.066

0.6476

Shave Time

0.050

0.7325

Core+Shave Victrectomy Time

0.047

0.7469

Core Time

0.020

0.893

D. Postoperative Pain Score Versus

rvalue

pvalue

Core Vitrectomy Time

0.156

0.2794

Number of Surgical Steps

−0.153

0.2897

Postoperative Day 1 IOP

−0.137

0.3432

Number of Times Ancillary I trument Used

0.093

0.5191

Core+Shave Victrectomy Time

0.0867

0.5492

Total Operative Time

−0.023

0.8734

Shave Vitrectomy Time

−0.002

0.9914

logMAR change

−0.066

0.6497

E.Total Vitrectomy Time (Core + Shave) Versus

r value

pvalue

Total Operative Time

0.5608

0.0001*

logMAR change

0.252

0.0773

Number of Surgical Steps

0.195

0.1757

Postoperative Day 1 IOP

0.047

0.7469

Number of Times Ancillary I trument Used

−0.011

0.9397

Postoperative Pain Score

−0.023

0.8734

F. logMAR change

rvalue

pvalue

Total OR TIME

0.234

0.1019

Shave Time

0.224

0.1174

Core Time

0.223

0.1194

PPV

0.252

0.0773

Number of Steps

0.046

0.7532

Number of instruments

0.018

0.9006

Pain

−0.066

0.6497

  1. * significant
  2. Abbreviation: IOP Intraocular pressure