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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Nat Genet. 2014 Jun 22;46(8):837–843. doi: 10.1038/ng.3013

Table 1. Demographics of the patient cohorts.

EAC cohorts Barrett’s esophagus cohorts TP53 analysis on Cytosponge™

Discovery Validation Never-dysplastic
Barrett’s esophagus
Barrett’s
esophagus with HGD
No Barrett’s
esophagus Controls
Never-dysplastic
Barrett’s esophagus
Barrett’s
esophagus with HGD
Number 22 90 40 39 23 44 22

Age (years) 68 (53-82) 66 (32-83) 63 (32-81) 71 (50-87) 53 (28-74) 61 (41-85) 66 (41-82)

Sex (M:F) 5:1 5 : 1 2 : 1 12:1 1 : 2 4 : 1 10 : 1

Stage (%) I 4 (18.2) 14 (15.6)
II 6 (27.3) 14 (15.6)
III 11 (50.0) 49 (54.4)
IV 1 (4.5) 4 (4.4)
n/a 0 (0.0) 9(10.0)

Barrett’s esophagus length (cm) 4.8 (1-9) 8.6 (2-16) 5.8 (1-12) 8.5 (4-16)

Follow up from EAC diagnosis (months) 28.5 (5-63) 18 (1-134)

Total Barrett’s esophagus surveillance (months) 58 (4-132) 1 (0-45) 56 (0-175) 24 (0-180)
*

Data shown reflect mean (range) for age and Barrett’s esophagus length, number (percentage) for stage and median (range) for follow up from EAC diagnosis and total Barrett’s esophagus surveillance. Sex ratio rounded to the nearest whole number.