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Fig. 1 | BMC Microbiology

Fig. 1

From: Changes in gut microbiota and plasma inflammatory factors across the stages of colorectal tumorigenesis: a case-control study

Fig. 1

Flowchart for the selection of participants and collection of specimens. Gender, BMI and chronic diseases (heart disease, hypertension, and diabetes) showed no significant differences among the four study groups. Mean (SD) age of all participants was 59.1 (9.6) years. The included patients in the polyps group were younger than those with CRC (P = 0.033). The proportion of smoking in CRC (P = 0.044) and A-CRA (P = 0.002) patients was higher than controls. There were more patients with distal lesions than those with proximal lesions (Table 1). Among the CRC patients, 20.7%, 42.3% and 36.2% were in the TNM stages I, II and III, respectively

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