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Table 2 Hazard ratios of gastric cancer incidence according to alcohol consumption

From: Alcohol consumption and risk of gastric cancer: a cohort study of men in Kaunas, Lithuania, with up to 30 years follow-up

Alcohol category

No. of cases

Person-years

Incidence rate/10,000 person-years

HR (95% CI)a

HR (95% CI)b

Follow-up from 1978 through 2008

Frequency

     

Non-drinkers

11

10,761

10.2

0.95 (0.47–1.92)

0.96 (0.47– 1.93)

A few times per year

27

24,948

10.8

1 (reference)

1 (reference)

1–4 times per month

132

94,719

13.9

1.37 (0.90–2.08)

1.27 (0.83–1.94)

2–7 times per week

15

6,759

22.2

2.19 (1.16–4.13)

2.00 (1.04–3.82)

p-trend c

    

0.11

Ethanol intake

     

Non-drinkers

11

10,761

10.2

0.94 (0.47–1.89)

0.95 (0.47–1.90)

0.1–9.9 g/week

29

26,574

10.9

1 (reference)

1 (reference)

10.0–24.9 g/week

56

48,660

11.5

1.10 (0.70–1.72)

1.04 (0.66–1.64)

25.0–99.9 g/week

56

34,858

16.1

1.57 (1.00–2.46)

1.44 (0.91–2.29)

≥100.0 g/week

33

16,334

20.2

2.07 (1.26–3.42)

1.90 (1.13–3.18)

Continuous, per 1 SD (90 g/week)c

    

1.12 (1.00–1.25)

Follow-up from 1993 through 2008

Frequency

     

Non-drinkers

7

9,676

7.2

1.32 (0.52–3.30)

1.34 (0.53–3.36)

A few times per year

13

23,282

5.6

1 (reference)

1 (reference)

1–4 times per month

79

86,369

9.2

1.88 (1.04–3.39)

1.81 (1.00–3.29)

2–7 times per week

11

5,917

18.6

3.95 (1.76–8.84)

3.99 (1.75–9.11)

p-trend c

    

0.007

Ethanol intake

     

Non-drinkers

7

9,676

7.2

1.20 (0.49–2.95)

1.23 (0.50–3.01)

0.1–9.9 g/week

15

24,707

6.1

1 (reference)

1 (reference)

10.0–24.9 g/week

32

44,576

7.2

1.32 (0.71–2.44)

1.29 (0.69–2.39)

25.0–99.9 g/week

36

31,626

11.4

2.13 (1.16–3.88)

2.06 (1.11–3.81)

≥100.0 g/week

20

14,658

13.6

2.74 (1.40–5.36)

2.74 (1.37–5.49)

Continuous, per 1 SD (90 g/week)c

    

1.17 (1.03–1.32)

  1. aStratified by study. Age was used as the underlying time metric for all analyses.
  2. bStratified by study and adjusted for smoking (never, former, ≤10 cig/day, 11–19 cig/day, ≥20 cig/day); education (primary, unfinished secondary, secondary, higher); BMI. Age was used as the underlying time metric for all analyses.
  3. cTest for trend was carried out after exclusion of non-drinkers.