Research Article

An Add-On Treatment for Moderate COPD with Squill-Oxymel (a Traditional Formulation from Drimia maritima (L.) Stearn): A Pilot Randomized Triple-Blinded Placebo-Controlled Clinical Trial

Table 2

Comparison of the mean distance in the 6MWT and O2 saturation between Squill-Oxymel and placebo groups.

VariablesSquill-Oxymel group
M ± SD
Placebo group
M ± SD

Mann–Whitney U test

Predistance in the 6MWT
Postdistance in the 6MWT
369.76 ± 117.26
387.38 ± 123.53
410.00 ± 133.33
399.81 ± 106.40
0.199
0.940

Pre-O2 saturation at the start of the 6MWT
Post-O2 saturation at the start of the 6MWT
86.90 ± 8.64
85.19 ± 11.25
89.95 ± 5.40
88.90 ± 6.56
0.30
0.37

Pre-O2 saturation at the end of the 6MWT
Post-O2 saturation at the end of the 6MWT
77.00 ± 13.28
77.86 ± 12.52
85.57 ± 9.10
81.29 ± 10.32
0.008
0.48

M ± SD: mean ± standard deviation.