BMC Musculoskeletal Disorders

Table 3 Comparison of efficacy between the two groups based on their clinical improvement

From: Efficacy of single high-molecular-weight versus triple low-molecular-weight hyaluronic acid intra-articular injection among knee osteoarthritis patients

	HMW-HA	LMW-HA	P value
Before [Mean]
WOMAC	42	44.00	0.713^a
Lequesne	12.42	12.50	0.866^b
VAS	8	8.00	0.276^a
2 months [Mean]
WOMAC	26.03	25.00	0.59^b
Lequesne	9.6	8.93	0.202^b
VAS	2	2.00	0.788^a
6 months [Mean]
WOMAC	24.08	26.55	0.247^b
Lequesne	8.97	9.73	0.126^b
VAS	3	4.00	0.411^a

^a P values refer to comparison between the two groups, based on the Mann-Whitney test
^b P values refer to comparison between the two groups, based on the student’s T-test

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