Table 4. Post hoc test in each anatomical disc level among age groups which are significantly different.

Subject	Age Group*	Age Group*	P Value	Subject	Age Group*	Age Group*	P Value
T22	25–34	45–54	0.008	ADC2#	25–34	45–54	0.016
		55–64	<0.001			55–64	0.005
	35–44	45–54	0.007		35–44	45–54	0.015
		55–64	<0.001			55–64	0.007
T23	25–34	45–54	0.001	ADC3	25–34	45–54	<0.001
		55–64	<0.001			55–64	<0.001
	35–44	45–54	0.018		35–44	45–54	0.009
		55–64	<0.001			55–64	<0.001
	45–54	55–64	0.006		45–54	55–64	0.004
T24	25–34	45–54	0.001	ADC4#	25–34	45–54	0.001
		55–64	<0.001			55–64	<0.001
	35–44	55–64	0.002		35–44	55–64	0.003
T25	25–34	35–44	0.043	ADC5#	25–34	45–5455–64	<0.001 0.003
		45–54	<0.001
		55–64	<0.001
	35–44	55–64	0.016

^*Unit: year;

^#Dunnett T3 test is used; T21, T22, T23, T24, T25 indicate the T2 intensity from L1–2 to L5-S1 IVD respectively; ADC1, ADC2, ADC3, ADC4, ADC5 indicate the ADC value from L1–2 to L5-S1 IVD in every age group respectively.