Table 5.

Diagnostic prediction Z score thresholds.

		Unlikely	Possible	Likely	Very Likely
Enzmology	Individual Z	Z < 2	Z ≥ 2	Z ≥ 3	Z ≥ 4
	Sum + Z only	Z < 7	Z ≥ 7	Z ≥ 9	Z ≥ 11
Oxygraphy	Individual Z	Z < 3	Z ≥ 3	Z ≥ 4	Z ≥ 5
	Sum + Z only	Z < 10	Z ≥ 10	Z ≥ 15	Z ≥ 20