Table 4.

Outpatient laboratory tests five years to one year before, or one year after hospitalisation of patients with IBS diagnosed in France in 2015, according to the number of reimbursements for certain tests

	Before hospitalisation									After hospitalisation
Years	−5	−4	−3	−2	−1					1 year
Age	All	All	All	All	All*	18–39	40–59	60–74	75 +	All*	18–39	40–59	60–74	75 +
N					29,509	7040	12,081	7883	2505
	%	%	%	%	%	%	%	%	%	%	%	%	%	%
CBC and platelet count
0	2.7	3.4	4.7	7.3	14.3	14.5	16.9	12.0	9.1	36.3	46.6	40.8	26.2	18.2
1	7.0	9.3	13.0	20.1	35.2	35.4	37.3	35.0	25.7	32.5	27.8	32.8	36.7	30.6
2	10.4	13.4	17.6	23.9	25.7	25.9	25.0	27.1	24.4	14.6	12.2	12.9	17.9	19.5
3 or more	79.9	73.9	64.6	48.7	24.7	24.2	20.9	25.9	40.8	16.5	13.4	13.5	19.2	31.7
CRP
0	13.2	15.6	19.1	24.6	34.5	27.6	37.6	37.1	30.6	55.6	61.0	59.0	50.4	39.7
1	18.7	21.3	24.5	29.0	36.1	39.5	36.8	34.4	28.5	26.6	24.2	26.0	29.0	29.2
2	17.3	18.3	19.7	20.6	16.8	19.5	15.5	16.0	17.5	9.4	8.2	8.3	11.0	13.5
3 or more	50.9	44.8	36.7	25.8	12.6	13.4	10.1	12.5	23.5	8.4	6.6	6.7	9.6	17.7
T.S.H.
0	17.3	20.0	23.6	29.6	41.7	41.9	43.4	39.8	38.7	56.9	65.9	58.7	49.4	46.5
1	20.4	22.7	26.2	31.2	38.0	40.2	38.2	37.3	32.8	28.7	23.8	28.7	32.5	31.0
2	17.2	18.5	19.7	20.2	13.8	13.0	12.7	15.2	16.5	8.9	6.6	7.9	11.1	13.6
3 or more	45.1	38.8	30.5	19.0	6.6	4.9	5.7	7.7	12.0	5.4	3.7	4.6	7.1	8.9
Tests for coeliac disease
0	89.4*	89.7	90.2	90.8	91.8	81.5	93.2	96.7	98.4	97.0	94.6	97.4	97.9	99.0
1	6.2	6.1	5.9	5.6	5.2	11.6	4.3	2.1	0.9	1.8	3.4	1.5	1.3	0.5
2	3.2	3.1	2.9	2.7	2.4	5.4	2.0	0.9	0.6	0.8	1.4	0.8	0.5	0.4
3 or more	1.2	1.1	1.0	0.8	0.6	1.5	0.5	0.2	0.2	0.3	0.7	0.2	0.2	0.2
Stool examination for ova
0	85.3	86.3	87.3	88.5	90.0	83.0	91.5	93.1	92.7	97.5	96.2	97.9	97.8	98.0
1	10.6	10.0	9.4	8.6	7.7	13.3	6.5	5.0	6.3	1.8	2.5	1.5	1.7	1.8
2	1.7	1.5	1.3	1.1	0.8	1.4	0.7	0.6	0.4	0.3	0.5	0.2	0.2	0.1
3 or more	2.4	2.2	2.0	1.8	1.5	2.3	1.4	1.3	0.7	0.5	0.8	0.4	0.4	0.1

*P < 0.0001 for distribution comparisons between “all −1 year” vs “all 1 year”)