Table 1 Frequency of risk factors of adenocarcinomas of non-cardia, oesophageal and cardia sub-sites, with matched controls
Non-cardiaOesophagealCardia
Case (66)Control (66)Case (19)Control (38)Case (53)Control (53)
PG I/II [mean (SD)]2.01 (1.01)3.46 (1.73)4.76 (2.00)3.43 (1.92)3.39 (2.23)4.19 (2.46)
Smoking
    Ever smoker28 (42.4%)15 (22.7%)10 (52.6%)9 (23.7%)19 (35.8%)12 (22.6%)
    Non-smoker38 (57.6%)51 (77.3%)9 (47.4%)29 (76.3%)34 (64.2%)41 (77.4%)
GORD symptoms
    <1 time per week50 (75.8%)33 (50.0%)2 (10.5%)19 (50.0%)25 (47.2%)32 (60.4%)
    1–2 times per week13 (19.7%)23 (34.8%)6 (31.6%)15 (39.5%)14 (26.4%)17 (32.1%)
    >2 times per week3 (4.5%)10 (15.2%)11 (57.9%)4 (10.5%)14 (26.4%)4 (7.5%)
H pylori sero-status
    Positive62 (93.9%)49 (74.2%)9 (47.4%)28 (73.7%)44 (83.0%)39 (73.6%)
    Negative4 (6.1%)17 (25.8%)10 (52.6%)10 (26.3%)9 (17.0%)14 (26.4%)
Histological subtype
    Intestinal36 (54.5%)n/a16 (84.2%)n/a34 (64.2%)n/a
    Diffuse25 (37.9%)n/a1 (5.3%)n/a16 (30.2%)n/a
    Mixed/unclassifiable5 (7.6%)n/a2 (10.5%)n/a3 (5.7%)n/a
  • n/a: not applicable.