Research Article

Shared Medical and Environmental Risk Factors in Dry Eye Syndrome, Sjogren’s Syndrome, and B-Cell Non-Hodgkin Lymphoma: A Case-Control Study

Figure 1

Severity of eye dryness by the OSDI questionnaire score. Cutoff . Comparison between the 3 groups with a one-way ANOVA test: . SS vs. DES with an independent sample -test: . Error bars: standard deviations.