Table 1.

Study characteristics

AuthorsYearDesignLocationNo. casesCase population and ascertainmentComparison populationConfounders adjusted for
Brown (11)1995Case-controlUnited Statesn = 174 (AE + CA); n = 750 controlsCancer registryPopulation controlsA, C, E, L, T, S
Chen (12)2002Case-controlUnited Statesn = 124 (AE); n = 449 controlsCancer registryPopulation controls
Cheng (13)2000Case-controlUnited Statesn = 74 (AE); n = 74 controlsCancer registryUnited Kingdom health service registriesF, D
Chow (14)1998Case-controlUnited Statesn = 292 (AE); n = 201 (CA); n = 695 controlsCancer registryPopulation controlsA, G, L, R, T, X
Engeland (15)2004CohortNorwayn = 575 (AE); total n = 2 millionGeneral Norwegian populationGeneral Norwegian populationA
Incarbone (19)2000Case-controlItalyn = 262 (AE + CA); n = 262 controlsSingle hospitalHospital controls
Ji (48)1997Case-controlChinan = 185 (CA); n = 1,451 controlsMultiple hospitals in defined areaShanghai area resident registryA, T*, E*, S, H
Kabat (18)1993Case-controlUnited Statesn = 194 (distal AE + CA); n = 6,772 controlsMultiple hospitalsHospital controlsA, D, E, L, S, T
Lagergren (16)1999Case-controlSwedenn = 189 (AE, excluding distal); n = 262 (CA); n = 820 controlsCancer registryPopulation registryA, C, D, E, G, H, P, S, T
Lindblad (10)2005Case-controlUnited Kingdomn = 287 (AE); n = 10,000 controlsGeneral Practitioner Research databaseGeneral Practitioner Research databaseA, G, S, E, H
Tran (49)2004CohortChinan = 1089 (CA); total n = 29,584Monthly visit by health workerGeneral populationA, G
Wu (47)2001Case-controlUnited Statesn = 222 (AE); n = 277 (CA); n = 1,356 controlsCancer registryPopulation controlsA, G, R, S, T, Y
Zhang (20)1996Case-controlUnited Statesn = 95 (AE + CA); n = 132 controlsSingle hospitalHospital controlsA, B, D, E, G, H, K, R, S, T
Zhang (50)2003Case-controlChinan = 300 (CA); n = 258 controlsSingle hospitalHospital controls
  • Abbreviations: A, age; B, Barrett's esophagus; C, energy intake; D, diet; E, alcohol/ethanol; F, breast-feeding; G, gender; H, history of ulcer, reflux, or gastric disease; J, family history; K, history of hypertension; L, location, area, hospital; M, marital status; P, physical activity; R, race; S, SES, education; T, tobacco; V, vitamin intake; X, proxy or respondent status; Y, birthplace; Z, period, time between interview and disease.

  • * Adjusted for male only.