Table 3: Interpretation of p-Values from Z Score

	Narrowed Joint Space	Osteophytes	Subchondral Sclerosis	Subchondral Cysts
Narrowed joint space		0.0097	< 0.0001	< 0.001
Osteophytes			< 0.0001	< 0.001
Subchondral sclerosis				< 0.0001
Subchondral cysts