Table 2.

The GIS index in the cinnamon oil and placebo groups before and after 6 weeks of intervention. The data are expressed as mean.

	Cinnamon oil	Placebo	Between-groups P value
Baseline score	20.72	21.94	0.317
After 6 weeks	16.2	14.75	0.174
Within-group P value	<0.001	<0.001