Table 2.

Pooled odds ratios of gastric cancer according to study-specific tertiles of fruits, non-citrus fruits, vegetables, and fruits and vegetables consumption (portions/day).

	Cases			Controls			OR (CI 95%)a	I2 (%)
	N	%	portions/day Median (P25-P75)	N	%	portions/day Median (P25-P75)
Fruits b
1st tertile	3,164	37.6	0.8 (0.4–1.2)	7,041	33.3	0.8 (0.4–1.2)	1
2nd tertile	2,604	31.0	1.9 (1.5–2.5)	6,841	32.3	1.9 (1.4–2.6)	0.81 (0.71–0.93)	49.2
3rd tertile	2,2350	27.9	3.6 (2.5–5.3)	6,617	31.2	3.6 (2.5–4.7)	0.76 (0.64–0.90)	59.7
Missing	292	3.5		673	3.2
P value for trend							<0.001
Non-citrus fruits c
1st tertile	2,686	35.6	0.6 (0.3–1.0)	6,121	32.4	0.6 (0.3–1.0)	1
2nd tertile	2,353	31.2	1.4 (1.1–2.1)	6,181	32.7	1.4 (1.1–2.0)	0.83 (0.70–0.98)	61.8
3rd tertile	2,234	29.6	3.0 (2.0–4.4)	5,956	31.5	2.8 (2.1–3.9)	0.86 (0.73–1.02)	55.0
Missing	275	3.6		625	3.3
P value for trend							<0.001
Vegetables d
1st tertile	3,311	38.8	1.0 (0.4–1.6)	7,028	33.0	1.0 (0.5–1.5)	1
2nd tertile	2,552	29.9	2.1 (1.1–2.8)	6,826	32.1	2.2 (1.6–2.8)	0.81 (0.69–0.95)	65.8
3rd tertile	2,471	28.9	3.6 (2.3–5.1)	6,867	32.3	3.8 (2.8–5.0)	0.68 (0.56–0.84)	74.5
Missing	208	2.4		547	2.6
P value for trend							<0.001
Fruits and vegetables e
1st tertile	3,200	38.7	2.0 (1.4–3.1)	6,888	33.2	2.2 (1.5–3.2)	1
2nd tertile	2,493	30.1	4.1 (2.8–5.6)	6,532	31.5	4.3 (3.1–5.6)	0.76 (0.65–0.88)	59.2
3rd tertile	2,303	27.8	7.0 (4.7–9.9)	6,667	27.8	7.1 (5.3–9.1)	0.61 (0.49–0.75)	75.5
Missing	280	3.4		648	3.1
P value for trend							<0.001

95% CI – 95% Confidence Interval; OR – Odds Ratio; P25-P75 – percentile 25 - percentile 75.

^aPooled ORs were computed using random-effects models. Study-specific ORs were adjusted, when available and applicable, for sex, age (five-year age groups: <40;40–45; …; 70–75; >75), socioeconomic status (low, intermediate, or high, as defined in each original study based on education, income or occupation), smoking status (never, former and current smokers of ≤10 cigarettes/day; 10 to 20 cigarettes per day; >20 cigarettes/day), alcohol drinking (never, low: ≤12g of ethanol/day, intermediate: >12 to ≤47 g/day, high: >47g/day), salt intake (study-specific tertiles), red and processed meat intake (study-specific tertiles), other fruits/vegetables intake (study-specific tertiles), total energy intake (study-specific quintiles), study center (for multicenter studies) and race/ethnicity (White, Black/African American, Asian, Hispanic/Latino, other).

^bNo information for study China 1.¹⁷

^cNo information for studies Brazil 1,¹³ Brazil 2,¹² China 1,¹⁷ China 4,⁶⁴ Italy 3,²⁴ Sweden 1¹¹ and Sweden 2.¹¹

^dNo information for study China 4.⁶⁴

^eNo information for studies China 1¹⁷ and China 4.⁶⁴