Table 4.

The levels of immunoglobulin A (IgA) antibodies to calreticulin peptides in patients with active coeliac disease (CD), CD patients on a gluten-free diet (CD-GFD), patients with refractory coeliac disease (RCD-GFD) and healthy controls.

Peptides	Cohorts/numbers
	CD/12	CD-GFD/10	RCD-GFD/12	Healthy controls/12
GVTKAAEKQMKD	334.7 ± 247.6*	83.6 ± 72.6	595.2 ± 385.7***	131.4 ± 93.9
IFDNFLITND	238 ± 229.2**	60.4 ± 58.4	327.3 ± 315.5**	181.2 ± 102.1**

Data are expressed as mean ± standard deviation of optical density.

^***P < 0·001, RCD-GFD versus healthy controls, CD-GFD patients.

^**P < 0·01, CD, RCD-GFD versus CD-GFD, healthy controls versus CD-GFD patients.

^*P < 0·05, CD versus CD-GFD patients.