Visual Analogue Scale
The Visual analogue test was performed to test for pain
as a symptom. The Friedman test was applied to the
complete data at each visit to test for significance. As
illustrated in Table 2, the Friedman test was significant
from Day 6 onwards up to day 56. For these days the
Wilcoxon paired sample test was applied to evaluate
individual variation from the baseline at each visit. The
significant reduction in the VAS was seen directly
from the first hour after intake of the active tablet,
which continued till the last time of testing, at 4 hours
post tablet. This clearly demonstrates the early onset
action of the tablet on pain in knee osteoarthritis, which
is the most debilitating symptom for the patients.
Graph 2 shows the variation in the VAS scores