Table 6.

Number of responders considered at the end of the study (week 4) and at 1 and 2 month(s) after treatment^*.

		1 month after treatment	2 months after treatment
Treatment groups	responders at week 4	remaining responders/ evaluated responders†	remaining responders/ evaluated responders†
Placebo	13	11/12	9/12
Diclofenac	18	10/16	7/15
EA	27	21/25	19/24
Combined	24	14/24	14/24
p value**		0.12	0.19

^* Only the responders at the end of the study were followed up for 2 months. ^†Some patients were unable to be evaluated due to loss of follow up or use of NSAIDs for other purposes during the follow-up period. ^** Fisher test between the four groups.