Table 2 Paired comparisons (Wilcoxon test) and correlation (Spearman Rho) among the single four procedures in the two eyes.

From: Comparing automated and manual assessments of tear break-up time using different non-invasive devices and a fluorescein procedure

Procedure

Right eye

Left eye

EasyTear View+

Polaris

Sirius+

EasyTear View+

Polaris

Sirius+

Polaris

Wilcoxon; P = 0.14

  

Wilcoxon; P = 0.006*

  

Spearman Rho = 0.68 (p < 0.001)*

Spearman Rho = 0.87 (p < 0.001)*

Sirius+

Wilcoxon; P = 0.022

Wilcoxon; P = 0.016

 

Wilcoxon; P = 0.002*

Wilcoxon; P = 0.07

 

Spearman Rho = 0.43 (p < 0.005)*

Spearman rho = 0.63 (p < 0.001)*

Spearman Rho = 0.56 (p < 0.001)*

Spearman Rho = 0.47 (p < 0.001)*

fBUT

Wilcoxon; P < 0.001*

Wilcoxon; P < 0.001*

Wilcoxon; P < 0.001*

Wilcoxon; P < 0.001*

Wilcoxon; P < 0.001*

Wilcoxon; P < 0.001*

Spearman Rho = 0.59 (p < 0.001)*

Spearman Rho = 0.70 (p < 0.001)*

Spearman Rho = 0.53 (p < 0.001)*

Spearman Rho = 0.77 (p < 0.001)*

Spearman Rho = 0.71 (p < 0.001)*

Spearman Rho = 0.49 (p < 0.001)*

  1. *Significant comparisons (after Bonferroni correction for multiple comparisons, alpha was lowered to 0.008) and significant correlations are reported in bold.
Back to article page