Table 1. Characteristics of patients receiving either water or mannitol solution as neutral oral contrast agent.
| water group | mannitol group | |
|---|---|---|
| No. of patients (total n = 180) | 92 | 88 |
| Sex | ||
| Number of male patients | 55 | 56 |
| Number of female patients | 37 | 32 |
| Age (y) | 59 (18–91) | 63 (29–86) |
| Body mass index (kg/m2) | 26.5 ± 5.4 | 25.7 ± 5.9 |
| Primary tumor | ||
| lip, oral cavity and pharynx | 0 | 4 |
| digestive organs | 28 | 23 |
| respiratory and intrathoracic organs | 22 | 27 |
| bone and articular cartilage | 1 | 0 |
| melanoma and other malignant neoplasms of skin | 9 | 10 |
| mesothelial and soft tissue | 5 | 5 |
| breast | 3 | 3 |
| female genital organs | 3 | 1 |
| male genital organs | 4 | 5 |
| urinary tract | 7 | 2 |
| thyroid and other endocrine glands | 3 | 1 |
| ill-defined, secondary and unspecified sites | 0 | 2 |
| lymphoid, hematopoietic and related tissue | 7 | 5 |
Underlying malignancies were classified according to the World Health Organization (WHO)[18]. Age: mean with range in parenthesis. Body mass index (BMI): mean with SD.