Table 4.

Correlation data between tear meniscus dimensions in tear dysfunction and clinical parameters of tear dysfunction.

	All subjects		All tear dysfunction		MGDa		ATDb
	R value	p value	R value	p value	R value	p value	R value	p value
Corneal staining vs. TMHa	−0.322*	0.0008	−0.31*	0.015	0.400	0.059	−0.36*	0.04
Corneal staining vs. TMAb	−0.248	0.0106	−0.29*	0.024	0.553*	0.006	−0.40*	0.018
TBUTc vs. TMHa	0.391*	< 0.0001	0.422*	0.0003	0.173	0.48	0.374*	0.018
TBUTc vs. TMAb	0.338*	0.0004	0.405*	0.0013	0.123	0.616	0.458*	0.0065
Conjunctival staining vs. TMHa	−0.232	0.0549	−0.15	0.338	−0.02	0.931	−0.40	0.052
Conjunctival staining vs. TMAb	−0.156	0.201	−0.11	0.485	0.044	0.841	−0.36	0.085
Schirmer vs. TMHa	+0.385*	0.0002	+0.424*	0.0009	0.188	0.39	0.0686	0.691
Schirmer vs. TMAb	+0.354*	0.001	+0.382*	0.004	0.198	0.36	0.0795	0.665

For each category of tear dysfunction, Pearson's correlation coefficient (R value) was calculated for each comparison. Confidence intervals are listed in the Results section. Sjögren syndrome aqueous tear deficiency (SSATD) and non-SSATD are not listed because their clinical parameters were not found to have significant correlation with tear meniscus height or tear meniscus area. Likewise, ocular surface disease index (OSDI) is not listed as a clinical parameter in the left column because there was no significant correlation found.

^*Denotes statistically significance difference (p value ≤ 0.05).

^aMGD: Meibomian gland disease

^bATD: Aqueous tear deficiency

^cTMH: Tear meniscus height

^dTMA: Tear meniscus area