Factors influencing diagnostic delays in celiac disease

Table 3 Association between blood urea nitrogen levels and delayed diagnosis of celiac disease

Model	OR	95%CI	P value
1	1.37	1.12-1.73	0.005
2	1.34	1.07-1.72	0.015
3	1.37	1.09-1.78	0.013
4	1.42	1.09-1.91	0.015

Model 1: Unadjusted covariates. Model 2: Adjusted for age, sex, and body mass index. Model 3: Adjusted for age, sex, body mass index, presence or absence of vitamin D deficiency, presence or absence of anemia, and presence or absence of thyroid disease. Model 4: Age, sex, body mass index, presence or absence of vitamin D deficiency, presence or absence of anemia, and presence or absence of thyroid disease. Model 4: Adjusted for age, sex, body mass index, presence or absence of vitamin D deficiency, presence or absence of anemia, presence or absence of thyroid disease, white blood cells, creatinine, albumin, and serum iron.