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Table 1 Basic characteristics of the patients in the study

From: The role of 18F-fluorodeoxyglucose positron emission tomography/computed tomography in the primary staging of rectal cancer

Total number of patients 97
Gender  
 Male 59 (60.8%)
 Female 38 (39.2%)
Age (years)  
 Male 59.3
 Female 60.1
 Mean (age range) 60.5 (27–84)
Level of the tumor  
 Lower rectum (1–5 cm) 55 (56.7%)
 Mid rectum (6–10 cm) 29 (29.9%)
 Upper rectum (11–15 cm) 13 (13.4%)
Localization of the tumor in the rectal wall  
 Posterior 15 (15.46%)
 Anterior 10 (10.31%)
 Lateral 37 (38.15%)
 Circumferential 35 (36.08%)
Histopathological evaluation of the tumor  
 Well differentiated 71 (73.8%)
 Poorly differentiated and mucinous 26 (26.2%)
Patients’ serum CEA levels  
 Normal (≤5 ng/ml) 50.6%
 High (>5 ng/ml) 49.4%