Postural correction training improves chronic pain, nerve function, and inflammation in knee osteoarthritis: A retrospective cohort study

Table 2 Comparison of visual analog scale scores between the two groups, mean ± SD

Groups	Pre-intervention	Intervention 14 days	Intervention 30 days
Observation group (n = 50)	6.30 ± 1.05	3.16 ± 0.68a,c	1.90 ± 0.30a,b,c
Control group (n = 50)	6.46 ± 1.07	4.94 ± 0.84a	2.58 ± 0.54a,b
F value	F(group) = 78.405, F(point in time) = 730.073, F(interaction) = 28.989
P value	P(group) = 0.000, P(point in time) = 0.000, P(interaction) = 0.000

^aP < 0.05, within-group vs pre-intervention.

^bP < 0.05, within-group vs 14 days of intervention.

^cP < 0.05, between-group vs at the same time point.