Table 2.

Comparison of the OP pattern

	EJ (+) n = 23	JO-1 (+) n = 33	PL-7 (+) n = 30	PL-12 (+) n = 13	OJ (+) n = 9
JO-1 (+)	0.068	–	–	–	–
PL-7 (+)	< 0.001	0.019	–	–	–
PL-12 (+)	0.025	0.208	0.909	–	–
OJ (+)	0.397	1.000	0.203	0.567	–