Endocannabinoids and related lipids in blood plasma following touch massage: a randomised, crossover study

BMC Research Notes

Table 2 Relative reliability of measurements of endocannabinoids and six related lipids in human plasma samples

Lipid	1st measurement		2nd measurement		P value	Relative reliability (transformed data)
Lipid	Median	IQR	Median	IQR	P value	Lin’s CCC	ICC
2-AG	3245	2024	3300	2541	0.57	0.15 (−0.24 to 0.51)	0.17 (−0.27 to 0.56)
AEA	358	212	364	237	>0.99	0.23 (−0.22 to 0.59)	0.24 (−0.20 to 0.61)
PEA	2572	1595	2074	1565	0.28	0.27 (−0.15 to 0.61)	0.29 (−0.16 to 0.64)
SEA	834	356	789	236	0.37	0.31 (−0.13 to 0.65)	0.33 (−0.11 to 0.67)
OEA	1785	869	1433	1094	0.19	0.46 (0.086 to 0.72)	0.47 (0.06 to 0.75)
LEA	3207	3199	2028	3118	0.17	0.64 (0.32 to 0.83)	0.64 (0.30 to 0.84)
POEA	416	620	342	955	0.45	0.51 (0.12 to 0.77)	0.53 (0.13 to 0.78)
NA-Gly	627	469	617	352	0.84	0.41 (−0.025 to 0.71)	0.43 (0.006 to 0.73)

Median and IQR (interquartile ranges) are for the untransformed data in pM, and the P value comparing the two measurements are from Wilcoxon’s signed ranks matched pairs tests. The Lin’s CCC and ICC (1,1) values are for the transformed data (log₁₀ except for AEA where square root was used), required so that the data passed the D’Agostino and Pearson test of normality. Values in brackets are the 95 % confidence limits

ISSN: 1756-0500