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. 2021 Mar 8;16(3):e0247365. doi: 10.1371/journal.pone.0247365

Table 4. Comparison of changes in clinical signs and symptoms between the two groups.

Group 1 Group 2 p-value
Meibography score ***0.48 (±0.78) *0.40 (±0.68) 0.864b
OSDI **16.34 (±17.42) *8.30 (±17.66) 0.121a
TBUT (seconds) ***-1.93 (±2.46) ***-3.15 (±3.16) 0.416b
Schirmer’s test (mm) -0.05 (±5.45) 1.20 (±3.91) 0.528b
Expressibility of meibum ***-11.12 (±13.58) **-10.03 (±12.02) 0.773a
Cornea staining score *0.31 (±0.85) 0.23 (±0.85) 0.731a
Meibum quality score 0.05 (±0.41) 0.08 (±0.61) 0.450b

Data are presented as number and mean value ±standard deviation.

a: Independent samples t-test results.

b: Mann-Whitney U test results. OSDI: ocular surface disease index; TBUT: tear film break-up time. Asterisks indicate values with significant differences before and after treatment in each group (

* p<0.05,

** p<0.01,

*** p<0.001).