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Table 2 Correlation between nuclear grade and per-operative parameters

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

 

NC

NO

Spearman’s rho

Age (years)

Correlation Coefficient

.379a

.366a

Sig. (2-tailed)

.00001

.00003

N

126

126

CDE (%-seconds)

Correlation Coefficient

.660a

.643a

Sig. (2-tailed)

<.0001

<.0001

N

125

125

TAT (seconds)

Correlation Coefficient

.619a

.610a

Sig. (2-tailed)

<.0001

<.0001

N

126

126

EFU (ml)

Correlation Coefficient

.613a

.596a

Sig. (2-tailed)

<.0001

<.0001

N

126

126

  1. CDE= cumulative dissipated energy, TAT= total aspiration time, EFU= estimated fluid usage
  2. aCorrelation is significant at the 0.01 level (2-tailed)
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