Table 4. Comparing demographic, T1DM, and Marsh stage 1 between TTG IgA positive and negative in normal histology patients^*.

Variable	Positive (n=42)	95% CI	Negative (n=269)	95% CI	p-value
Age (yr)	8.8±4.7	7.3–10.2	10.0±5.2	9.3–10.7	0.167
Sex (male)	12 (2.6)	0.29–1.01	121 (45.0)	1.00–1.19	0.046
T1DM	15 (35.7)	3.70–9.91	11 (4.1)	0.30–0.73	<0.001
Marsh stage 1	19 (45.2)	1.75–5.18	48 (17.8)	0.68–0.93	<0.001

Values are presented as mean±standard deviation or number (%).

T1DM: type 1 diabetes mellitus, TTG: tissue transglutaminase, CI: confidence interval.

^*Total n=311 TTG IgA tests were performed with normal biopsy.