Table 5.

Median, maximum and sum of nLL = (lactate + lipid)/NAA (n = 67) and P-values for the proportional hazards analysis with age and scanner field strength being considered as covariates

Parameter	NAWM	CEL	NEL	T2ALL	CNI2T	CNI2
nLL median	0.07 ± 0.08	0.23 ± 0.22	0.12 ± 0.12	0.15 ± 0.18	0.16 ± 0.08	0.11 ± 0.13
				P = 0.015		P = 0.027
nLL max	0.21 ± 0.30	0.29 ± 0.38	0.25 ± 0.29	0.34 ± 0.71	0.32 ± 0.71	0.32 ± 0.73
				P = 0.043		P = 0.022
nLL sum	2.00 ± 2.92	0.29 ± 2.02	1.03 ± 2.39	1.62 ± 9.22	1.61 ± 10.37	3.27 ± 11.96
				P = 0.001	P = 0.010	P = 0.006
nLac median	0.07 ± 0.06	0.21 ± 0.20	0.16 ± 0.11	0.17 ± 0.07	0.19 ± 0.07	0.13 ± 0.06
						P = 0.030
nLac max	0.20 ± 0.16	0.21 ± 0.34	0.24 ± 0.18	0.29 ± 0.17	0.30 ± 0.15	0.29 ± 0.18
				P = 0.002	P = 0.008	P = 0.0005
nLac sum	2.80 ± 1.68	0.20 ± 1.80	0.91 ± 2.18	2.05 ± 4.06	2.28 ± 4.57	3.07 ± 4.72
				P = 0.021	P = 0.032	P = 0.011
nLip median	0.02 ± 0.07	0.24 ± 0.32	0.06 ± 0.09	0.11 ± 0.08	0.12 ± 0.11	0.05 ± 0.09
nLip max	0.19 ± 0.38	0.24 ± 0.32	0.21 ± 0.28	0.31 ± 0.36	0.31 ± 0.34	0.25 ± 0.32
nLip sum	1.23 ± 1.88	0.24 ± 2.29	0.37 ± 1.88	2.02 ± 4.95	1.23 ± 4.02	1.35 ± 4.13

Significance levels are shown only for the cases where P < 0.05. Data acquired using a 1.5T scanner used a lactate edited sequence (n = 35) and the values of nLac (Lactate/nNAA) and nLip (Lipid/nNAA) were also available