Table 2 Loadings of variables most related to each principal component representative for CD patients and nIBD

From: Mycobacterium avium subsp. paratuberculosis and associated risk factors for inflammatory bowel disease in Iranian patients

Variables	Principal components
Variables	PC1	PC2	PC3	PC4	PC5	PC6	PC7	PC8	PC9
Total variation (%)	18.89	8.57	7.9	7.26	5.7	5.15	4.65	4.56	4.08
MAP3865c_133–141	0.65	−0.15	−0.32	−0.28	0.15	0.17	−0.17	0.04	0.01
MAP3865c_125–133	0.74	−0.21	−0.28	−0.28	0.01	0.21	−0.19	−0.05	−0.02
MAP DNA	0.74	0.10	−0.21	−0.10	0.12	0.03	−0.20	0.15	−0.03
Age	−0.66	0.28	−0.32	−0.03	−0.29	0.06	−0.2	−0.11	0.15
Gender	−0.15	−0.09	−0.5	0.63	0.24	−0.06	−0.27	0.03	0.06
City	0.06	−0.23	−0.18	−0.25	−0.25	−0.31	−0.14	0.48	−0.31
IBD history	0.49	0.28	0.25	0.38	−0.39	0.04	−0.01	−0.02	0.03
Cancer history	0.02	0.46	−0.36	−0.11	0.18	0.01	0.35	0.1	−0.04
Diabetes history	0.21	0.38	−0.46	−0.05	−0.19	−0.24	0.27	0.2	0.01
Asacol treatment	0.48	0.13	0.32	0.12	−0.08	0.52	−0.12	0.19	0.07
Diarrhea	0.24	0.29	−0.09	−0.24	0.49	−0.15	0.21	−0.14	0.09
Constipation	−0.07	−0.25	−0.22	0.32	−0.06	0.19	0.46	−0.38	0.01
Bloody stool	0.47	−0.37	−0.04	0.13	−0.2	−0.21	0.21	−0.18	−0.1
Low Hb	0.54	−0.17	−0.27	0.2	−0.08	0.14	0.16	−0.33	−0.26
Weight loss	0.52	0.33	0.01	0.21	0.32	−0.26	0.07	0.17	−0.04
Smoke	0.22	0.4	−0.13	−0.28	−0.02	−0.01	0.08	−0.19	0.52
Milk consumption	0.15	−0.45	0.07	0.15	−0.23	0.29	0.11	0.16	0.28
Pasteurized milk	−0.15	0.52	0.15	0.3	0.19	0.36	−0.29	−0.26	−0.02
Fruit/vegetables	−0.57	−0.06	−0.13	−0.15	0.35	−0.08	−0.12	−0.15	−0.05
Breastfeeding duration	−0.56	0.03	−0.28	−0.36	0.02	0.15	0.03	−0.21	−0.15
Fast food	0.48	0.06	0.25	0.11	0.46	0.00	−0.04	0.11	0.05

Nine principal components with major contribution of each variable have been included. Italic values denote loadings ≥0.45. The table includes only variables exceeding the established threshold, relative to demographics, clinical history and nutritional habits of the selected participants. Percentage of the total variation is given for each principal component

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