Yellow vegetables and esophageal cancer.

Esophageal cancer risk: Data about the relation with esophageal cancer risk was provided by 2 cohorts (3, 8). No associations were found.

Esophageal cancer mortality: Data about the relation with esophageal cancer mortality was provided by one cohort (6). No association was found.

Conclusion: No associations were found. No evidence was found for an association between yellow vegetables and esophageal cancer.

Author

Cohort name

Subjects

Years of follow-up

Cases

End point

Consumption of

Relative Risk (RR)

Adjustments

8) Yamaji T (2008)

The JPHC Study

38,790 men aged 45-74.
(Japan)

7.7
(1995-98 to 2004)

116

Esophageal SCC risk

Yellow vegetables (carrots, tomatoes, pumpkins and tomato juice)

HR = 0.84 (0.51-1.39; P = 0.64) for the highest vs lowest tertile of consumption.

Amount specific data (g/day):
11: HR = 1.
37: HR = 1.29 (0.85-1.96).
82: HR = 0.84 (0.51-1.39).

Age, PHC area, cigarette smoking and alcohol drinking.

6) Iso H (2007)

The JACC Study.

39,323 men, and 55,480 women.
(Japan)

Not defined.

134 men, and
25 women.

Esophageal cancer mortality

Carrot or pumpkin


Men:	Women
HR = 0.97 (0.60-1.57) for the highest vs lowest tertile of consumption. Amount specific data: < 1/w: HR = 1. 1-2/w: HR = 0.93 (0.57-1.52). ≥ 3/w: HR = 0.97 (0.60-1.57).	HR = 1.33 (0.38-4.66) for the highest vs lowest tertile of consumption. Amount specific data: < 1/w: HR = 1. 1-2/w: HR = 0.63 (0.15-2.65). ≥ 3/w: HR = 1.33 (0.38-4.66).

Age and study area.

3) Kasum CM. (2002)

The Iowa Women's Health Study

34,651 postmenopausal women aged 55-69. (USA)

14 (1986-1999)

esophageal cancer risk

yellow/orange vegetables (not defined)

HRR = 0.67 (No 95% CI and P-value) for the highest vs lowest tertile of consumption.

Amount specific data (servings/week):
0-1.0: HRR = 1.
1.5-3.0: HRR = 1.41.
3.5-106.0: HRR = 0.67.

whole grains, refined grains, alcohol, smoking, age and energy

Cancer & Diet. A systematic review.

Literature review.

Relating various aspects of our diet
to esophageal cancer risk & mortality.

Yellow vegetables and esophageal cancer.

Cancer & Diet. A systematic review.

Literature review.

Relating various aspects of our dietto esophageal cancer risk & mortality.

Yellow vegetables and esophageal cancer.

Relating various aspects of our diet
to esophageal cancer risk & mortality.