Table 4.

Age differences in superficial layer cartilage transverse relaxation time (T2) in various compartments, plates, and subregions of the femorotibial joint

	1st Quartile		4th Quartile
	Mean ± SD	95% CI	Mean ± SD	95% CI	P-Value
Composite measures:
FTJ	45.8 ± 3.1	[44.4, 47.1]	45.7 ± 1.8	[44.9, 46.4]	0.939
MFTC	46.0 ± 3.7	[44.4, 47.6]	46.0 ± 2.8	[44.8, 47.2]	0.956
LFTC	45.6 ± 3.0	[44.3, 46.8]	45.3 ± 1.7	[44.6, 46.0]	0.733
cMFTC	46.7 ± 4.3	[44.9, 48.5]	46.4 ± 3.3	[45.0, 47.9]	0.818
cLFTC	44.3 ± 3.4	[42.8, 45.7]	44.0 ± 2.6	[42.9, 45.1]	0.956
Medial tibia (MT)
MT	42.2 ± 2.9	[41.0, 43.5]	41.9 ± 3.6	[40.3, 43.5]	0.531
cMT	43.3 ± 4.3	[41.4, 45.1]	42.5 ± 4.8	[40.4, 44.6]	0.546
eMT	45.8 ± 3.6	[44.2, 47.4]	43.7 ± 4.4	[41.7, 45.6]	0.036
iMT	37.3 ± 3.6	[35.8, 38.9]	37.7 ± 4.5	[35.7, 39.6]	0.869
aMT	41.9 ± 3.3	[40.4, 43.3]	42.1 ± 4.0	[40.3, 43.8]	0.701
pMT	42.3 ± 3.4	[40.8, 43.8]	42.6 ± 4.4	[40.7, 44.5]	0.974
Central medial femur (cMF):
cMF	49.8 ± 4.9	[47.6, 51.9]	50.1 ± 3.3	[48.7, 51.6]	0.684
ccMF	50.1 ± 5.6	[47.7, 52.5]	50.3 ± 3.3	[48.9, 51.7]	0.784
ecMF	44.6 ± 5.2	[42.3, 46.8]	45.1 ± 4.2	[43.3, 46.9]	0.921
icMF	53.3 ± 6.3	[50.6, 56.0]	53.7 ± 4.7	[51.7, 55.8]	0.652
Lateral tibia (LT):
LT	42.7 ± 2.8	[41.5, 43.9]	42.8 ± 2.8	[41.6, 44.0]	0.575
cLT	39.0 ± 3.6	[37.5, 40.6]	38.9 ± 4.3	[37.1, 40.8]	0.784
eLT	46.1 ± 3.5	[44.6, 47.6]	45.2 ± 3.6	[43.7, 46.7]	0.215
iLT	41.3 ± 4.6	[39.3, 43.3]	43.0 ± 4.3	[41.2, 44.9]	0.150
aLT	42.8 ± 2.9	[41.6, 44.0]	43.4 ± 3.2	[42.0, 44.8]	0.475
pLT	45.5 ± 3.9	[43.8, 47.1]	44.8 ± 3.5	[43.3, 46.4]	0.606
Central lateral femur (cLF):
cLF	48.4 ± 3.8	[46.8, 50.1]	47.8 ± 1.5	[47.2, 48.4]	0.448
ccLF	49.5 ± 4.5	[47.5, 51.5]	49.2 ± 2.5	[48.1, 50.2]	0.668
ecLF	46.8 ± 3.8	[45.1, 48.4]	44.3 ± 2.8	[43.1, 45.5]	0.013
icLF	48.6 ± 4.8	[46.6, 50.7]	49.0 ± 3.7	[47.3, 50.6]	0.818

For abbreviations used, please see table 1