Table 1. Detail of patient groups.
| Training SELDI | Validation-1 SELDI | Validation-2 ELISA | |
|---|---|---|---|
| n | n | n | |
| Pancreatic ductal adenocarcinoma | 38 | 40 | 33 |
| Male | 20 | 23 | 15 |
| Female | 18 | 17 | 18 |
| Stage I | 7 | — | 1 |
| Stage IIa | 5 | 4 | 7 |
| Stage IIb | 8 | 36 | 14 |
| Stage IV | 18 | — | 11 |
| Disease control | 54 | 21 | 28 |
| Male | 28 | 18 | 16 |
| Female | 26 | 3 | 12 |
| Cholelithiasis | 17 | 2 | |
| Choledocholithiasis | 6 | ||
| Intraductal papillary mucinous neoplasm | 6 | — | 1 |
| Carotid artery stenosis | — | 6 | |
| Mucinous cystadenoma | 5 | — | 2 |
| Neuroendocrine (islet cell) tumour | 5 | — | 7 (4) |
| Gallstone pancreatitis | 4 | — | 2 |
| Chronic pancreatitis | 4 | 1 | 2 |
| Benign stricture | 2 | ||
| Hernia | 3 | 2 | |
| Acute cholecystitis | — | 3 | |
| Othera | 10 | 7 | 3 |
| Healthy volunteer | 68 | 19 | 18 |
| Male | 28 | 12 | 9 |
| Female | 40 | 7 | 9 |
Abbreviation: SELDI=surface-enhanced laser desorption and ionisation.
The number in brackets indicates malignant islet cell tumours.
a
Other includes: Training Set – villous adenoma (n=2), serous cystadenoma (n=2), pancreatic pseudocyst (n=2), solid pseudopapillary tumour (n=1), Caroli's disease (n=1), gastro-oesophageal reflux (n=1) and ruptured appendix (n=1); Validation-1 Set – leg ischaemia (n=2), rectal bleeding (n=2), diaphragmatic hernia (n=1), phlebitis (n=1) and haematological disorder (n=1); and Validation-2 Set – solitary fibrous tumour, granulomata, intrapancreatic pseudocyst.