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. Author manuscript; available in PMC: 2020 May 26.
Published in final edited form as: Contemp Clin Trials. 2018 Jun 6;71:70–79. doi: 10.1016/j.cct.2018.06.002

Table 4.

Baseline Characteristics of all participants in the DRy Eye Assessment and Management (DREAM©) study.

Characteristic Overall 535 patients
Age (years) 58.0 ± 13.2
Gender - no. (%)
Female 434 (81.1)
Male 101 (18.9)
Race - no. (%)
White 398 (74.4)
Black 64 (12.0)
Other 73 (13.6)
Ethnicity - no. (%)
Hispanic or Latino 68 (12.7)
Other 467 (87.3)
OSDI score, mean
Total 44.4 ± 14.2
Vision-related function subscale 37.8 ± 17.7
Ocular symptoms 46.6 ± 17.1
Environmental triggers subscale 55.6 ± 24.5
Short Form-36 score, mean
Physical health 47.5 ± 9.7
Mental health 52.3 ± 9.4
Brief Ocular Discomfort Index scorea, mean
Discomfort subscale 44.2 ± 16.6
Pain interference subscale 27.0 ± 17.6
Use of dry eye treatments, no. (%)
Artificial tears, drops or gel 424 (79.3)
Cyclosporine drops 205 (38.3)
Warm lid soaks 114 (21.3)
Lid scrubs or baby shampoo 83 (15.5)
Any other treatment 268 (50.1)
Systemic diseaseb
Sjogren syndrome 56 (10.5)
Thyroid disease 108 (20.2)
Rheumatoid arthritis 49 (9.2)
None of the above 357 (66.7)
Fatty acid in red blood cells, %, meanc
Eicosapentaenoic 0.6 ± 0.4
Docosahexaenoic 3.9 ± 1.1
Omega-3 index(EPA + DHA) 4.5 ± 1.5
Oleic acid (omega-9) 11.1 ± 1.2
ω6 to ω3 ratio, meanc 4.8 ± 1.4
1022 Eyes
Conjunctival staining scorea, mean 3.0 ± 1.4
Corneal staining scorea, mean 3.9 ± 2.7
Tear break-up timea, sees, mean 3.1 ± 1.5
Schirmer testa, mm, mean 9.6 ± 6.5

Plus-minus values are means ± SD.

a

Average of values from screening and eligibility confirmation visits.

b

Ongoing or past history by patient report; may have > 1 disease.

c

Missing values for 15 subjects.