Table 4.

Correlation between the J-OSDI total score and other clinical assessments

Clinical items	J-OSDI total score		Ocular symptoms		Vision-related function		Environmental triggers
	γ	P value	γ	P value	γ	P value	γ	P value
DEQS	0.829	***<0.001	0.786	***<0.001	0.702	***<0.001	−0.650	***<0.001
TFBUT	−0.066	0.349	−0.044	0.532	−0.057	0.416	−0.131	0.063
CFS	0.018	0.791	−0.013	0.852	−0.137	*0.049	0.161	*0.022
Schirmer I	−0.090	0.195	−0.013	0.844	−0.071	0.311	−0.129	0.067
MBI	−0.283	***<0.001	−0.215	**0.002	−0.135	0.053	−0.407	***<0.001

Pearson rank correlation coefficient was used to determine the correlations between the J-OSDI total score and subscale scores and various clinical assessments.

*p<0.05, **p<0.01 and ***p<0.001.

CFS, corneal fluorescein staining; DEQS, Dry Eye-Related Quality-of-Life Score;J-OSDI, Japanese version of the Ocular Surface Disease Index; MBI, maximum blink interval; TFBUT, tear film breakup time.