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. 2021 May 12;21:211. doi: 10.1186/s12886-021-01967-7

Table 4.

Statistically Significant Correlations Between Dry Eye Clinical Tests in NSDE Group

Correlation P
NIKBUT - TBUT 0.567 0.011
Corneal staining - age − 0.698 0.001
Schirmer test - NIKBUT − 0.585 0.009
Schirmer test - TBUT − 0.458 0.049
Schimer test - Corneal staining −0.508 0.026

Statistics methods: correlation coefficients (Pearson or Spearman) and age-adjusted partial correlation coefficients (Pearson or Spearman) were calculated