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Table 2 The changes of VAS, TMH, FBUT and ABUT after treatment in the WMCGs and the 0.1% SH groups

From: Short-term effect of a developed warming moist chamber goggle for video display terminal-associated dry eye

  WMCG group (N = 22) 0.1% SH group (N = 18)  
Mean ± SD P* Mean ± SD P* P**
VAS
 Pre-treatment 5.25 ± 2.00 N/A 5.07 ± 1.98 N/A 0.800
 5 min post-treatment 1.68 ± 1.79 <0.001 4.26 ± 2.02 0.006 <0.001
 30 min post-treatment 2.80 ± 1.96 <0.001 4.51 ± 1.83 0.017 0.015
 60 min post-treatment 2.76 ± 1.84a <0.001 4.60 ± 1.69 0.058 0.005
TMH
 Pre-treatment 0.18 ± 0.05 N/A 0.18 ± 0.05 N/A 0.701
 5 min post-treatment 0.20 ± 0.06 0.004 0.21 ± 0.05 0.001 0.642
 30 min post-treatment 0.21 ± 0.07 0.001 0.19 ± 0.05 0.275 0.341
 60 min post-treatment 0.20 ± 0.06 0.012 0.18 ± 0.05 0.927 0.524
FBUT
 Pre-treatment 3.49 ± 0.97 N/A 3.52 ± 1.22 N/A 0.936
 5 min post-treatment 10.20 ± 7.21 <0.001 5.10 ± 1.76 0.011 0.004
 30 min post-treatment 6.06 ± 2.85a 0.001 5.74 ± 3.93 0.077 0.783
 60 min post-treatment 6.34 ± 3.69a 0.001 3.87 ± 1.26 0.463 0.007
ABUT
 Pre-treatment 4.86 ± 1.34 N/A 4.92 ± 1.69 N/A 0.890
 5 min post-treatment 14.29 ± 6.38 <0.001 6.86 ± 2.28 0.004 <0.001
 30 min post-treatment 8.83 ± 4.31a 0.002 6.98 ± 4.29 0.069 0.228
 60 min post-treatment 8.05 ± 3.89a 0.001 5.22 ± 1.60 0.566 0.015
  1. P<0.05 was regarded as significant difference
  2. VAS visual analog scale, TMH tear meniscus height, FBUT first break-up time, ABUT average break-up time, WMCGs warming moist chamber goggles, SH sodium hyaluronate
  3. *Self-comparison (post-treatment values compared with baseline level) by paired t test with Bonferroni correction
  4. **Comparison between the two groups at the same timepoint by independent t test
  5. aComparison between the value at 30 or 60 min and at 5 min after treatment