A Clinical Study on Glucosamine Sulfate versus Combination of Glucosamine Sulfate and NSAIDs in Mild to Moderate Knee Osteoarthritis

Table 2

Comparison of WOMAC stiffness mean score between group A and group B.

Review	Mean difference	95% confidence interval of the difference		𝑡-value
		Lower	Upper
0 week	0.2689	0.6406	0.0960	1.444^NS
4 weeks	1.3584	1.1049	1.1611	10.686*
8 weeks	1.6971	1.1414	1.9792	12.015*
12 weeks	2.2308	2.2130	2.4402	21.333*

* 𝑃<0.01, NS: Not significant.