Table 1 Number of observed cases of small intestine cancer, person-years and overall incidence rates

From: Height and body mass index in relation to cancer of the small intestine in two million Norwegian men and women

 

Men

Women

Variable

No. of cases

Person-years

Incidence rate a

No. of cases

Person-years

Incidence rate a

Time since measurement

 0–4

42

4 704 799

1

36

5 104 845

1

 5–9

55

4 186 615

1

62

4 630 922

1

 10–14

84

3 539 359

2

78

4 042 558

2

 15–19

77

2 974 592

3

97

3 554 864

3

 20–24

107

2 514 913

4

92

3 134 983

3

 25–29

101

2 100 174

5

108

2 716 707

4

 ⩾30

105

1 538 398

7

118

2 159 852

5

Age at measurement

 20–29

45

4 858 466

1

50

5 599 610

1

 30–39

102

4 647 809

2

106

5 282 390

2

 40–49

182

6 530 026

3

170

7 043 688

2

 50–59

157

3 458 166

5

155

4 467 454

3

 60–69

72

1 703 355

4

97

2 423 560

4

 70–74

13

361 029

4

13

528 029

2

Year of birth

 <1900

17

468 357

4

19

686 032

3

 1900–1909

67

1 775 881

4

94

2 555 664

4

 1910–1919

157

3 514 584

4

161

4 554 801

4

 1920–1929

177

4 995 227

4

156

5 576 162

3

 1930–1939

91

4 317 744

2

97

4 836 647

2

 1940–1949

48

4 646 655

1

52

5 114 247

1

 ⩾1950

14

1 840 403

1

12

2 021 176

1

BMI (kg/m2)

 <18.5

4

138 630

3

10

549 699

2

 18.5–24.9

281

12 576 460

2

301

14 439 090

2

 25.0–29.9

247

7 840 365

3

196

7 436 780

3

 ⩾30.0

39

1 003 396

4

84

2 919 162

3

Height (cm) b

 <150

   

9

367 010

2

 <160/150–159

2

143 607

1

177

7 051 248

3

 160–169

102

3 323 991

3

328

14 611 055

2

 170–179/⩾170

307

11 763 593

3

77

3 315 417

2

 ⩾180

160

6 327 660

3

   

Total

571

21 558 851

3

591

25 344 730

2

  1. aNumber of cases of small intestine cancer per 100 000 person-years.
  2. bSplit categories pertain to men and women, respectively.
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