Table 3

Panels A-D: Comparison of the three different tests categorizing children according to their faecal calprotectin concentrations in five categories: normal: 0 – 50 µg/g, borderline: 50 – 100 µg/g, moderately high: 100 – 250 µg/g, high: 250 – 1000 µg/g, very high: >1000 µg/g.

	0 – 50	50 – 100	100 – 250	250 – 1000	> 1000	Test A
Panel A: Comparison of test A vs. B
0 – 50	96	6*	2**			104
50 – 100	10*	6	8*			24
100 – 250	3**	10*	20	4*		37
250 – 1000	1**	2**	17*	49		69
> 1000		1**	2**	47*	20	70
Test B	110	25	49	100	20	304
Panel B: Comparison of test A vs. C
	0 – 50	50 – 100	100 – 250	250 – 1000	> 1000	Test A
0 – 50	75	22*	5**	2**		104
50 – 100	5*	5	12*	2**		24
100 – 250	1**	2*	12	21*	1**	37
250 – 1000	1**	2**	8*	37	21*	69
> 1000	1**		3**	12*	54	70
Test C	83	31	40	74	76	304
Panel C: Comparison of test B vs. C
	0 – 50	50 – 100	100 – 250	250 – 1000	> 1000	Test B
0 – 50	77	26*	5**	1**	1**	110
50 – 100	5*	2	12*	5**	1**	25
100 – 250		2*	18	26*	3**	49
250 – 1000		1**	4*	37	58*	100
> 1000	1**		1**	5*	13	20
Test C	83	31	40	74	76	304
Panel D: Concordance and discrepancies in numbers of children between the three different tests

	Concordance	1 category	> 1 category
		discrepancy(*)	discrepancy (**)
Test A vs. Test B	191	102	11
Test A vs. Test C	183	103	18
Test B vs. Test C	147	138	19

* 1 category discrepancy
** more than 1 category discrepancy
Differences of>1 category (**) between two tests are considered as clinically meaningful.