Healthspan Improvements in Caenorhabditis elegans with Traditional Chinese Herbal Tea

Table 1

Statistical analysis of survival time of C. elegans.

Genotype	Treatment (mg/ml)	Mean time^(1)	Maximum time^(2)	% effect^(3)	p value^(4)
N2	0	^a	^a	/	/
	10	^b	^b	20	<0.0001
	30	^ab	^b	16	<0.0001
	50	^ab	^ab	8	0.0260
	0 (paraquat)	^a	^a	12	0.0034
	10 (paraquat)	^b	^b
	0 (heat)	^a	^a	15	<0.0001
	10 (heat)	^b	^b
CL4176	0	^a	^a	16	<0.0001
	10	^b	^b
AM140	0	^a	^a	9	<0.0001
	10	1^b	^b
VC433	0			/	/
	10
CF1038	0			/	/
	10

⁽¹⁾Mean time = , where is the age category, is the number of worms that died in the age interval (, ), and is the total number of worms. ⁽²⁾The maximum time is the time at which fraction survival equals 0%. ⁽³⁾% effect was calculated by , where is the mean time of worms treated with HT and is the mean time of control. ⁽⁴⁾ value was calculated using the log-rank test by comparing the treated group with control.