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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