Table 1

Patients' characteristics

Normal esophagus (n = 6)
 Reflux esophagitis (n = 6)
 Barrett's esophagus (n = 6)
 Esophagus adenocarcinoma (n = 6)
Age [years]
 55 ± 7
 50 ± 9
 78 ± 3
 79 ± 8
Male [%]
 17
 50
 67
 67
Reflux symptom index score
 1.9 ± 0.9
 3.8 ± 1.8
 1.3 ± 1.2
 1.5 ± 1
Proton pump inhibitor medication [%]
 33
 67
 67
 100
Smoker [%]
 33
 33
 33
 33
Alcohol intake >20 g/d [%]
 17
 67
 50
 33
Caucasian ethnicity [%]
 100
 100
 100
 100

De Gottardi et al. Molecular Cancer 2006 5:48   doi:10.1186/1476-4598-5-48