Table 3.

Interference: the observed difference in C-reactive protein (CRP) concentration between a canine test pool with interfering substance and control pool, when measured with a new automated canine-specific immunoturbidimetric CRP method. The maximum allowable change in CRP concentration caused by interference was set to ± 10%.

Interferent	CRPcontrol pool (mg/L)	CRPtest pool (mg/L)	dobs [95% CI] (mg/L)	Acceptance Limits* of Interference (mg/L)
Hemoglobin 10 g/L	29.0	29.3	0.33 [−1.28; 1.95]	[−2.9; 2.9]
	111.5	111.5	−0.03 [−2.39; 2.32]	[−11.2; 11.2]
Triglycerides 10 g/L	30.3	31.3	1.00 [−0.62; 2.62]	[−3.0; 3.0]
	119.5	119.8	0.27 [−2.08; 2.62]	[−12.0; 12.0]

d_obs (95 CI) indicates observed difference (95% confidence interval).

^*Acceptance limits = ± 0.1 × CRP_{control pool.}