Table 2.

Comparison of total collagen accumulation following addition of licorice extract in Carbon tetrachloride induced cell lines at 24 h

After CCl4 at 24 h	Mean	SD	SE	Mean rank	χ 2	Df	P
Control	98.7433	0.11590	0.06692	17.00	16.145	5	0.006
25	93.6067	2.14197	1.23667	14.00
50	75.2100	0.55245	0.31896	11.00
100	63.9600	0.85082	0.49122	8.00
200	55.5800	20.38937	10.37950	3.83
Positive control 6	55.9300	0.27622	0.15948	3.17
Total	73.8383	17.68446	4.16827

SD: Standard deviation, SE: Standard error, CCl₄: Carbon tetrachloride