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Table 2 Standardized incidence ratios for each cancer according to type of rheumatic disease a

From: Comparison of cancer incidence among patients with rheumatic disease: a retrospective cohort study

Site of cancer

RA

SLE

SSc

DM

PM

Breast

O/E

10/12.509

4/5.883

0/1.653

0/0.492

0/0.282

SIR (CI)

0.799 (0.304 to 1.295)

0.68 (0.185 to 1.741)

0 (0 to 2.231)

0 (0 to 7.492)

0 (0 to 13.088)

Cervical

O/E

4/3.786

7/1.635

0/0.47

0/0.136

0/0.085

SIR (CI)

1.056 (0.288 to 2.705)

4.282 (1.722 to 8.824)

0 (0 to 7.846)

0 (0 to 27.198)

0 (0 to 43.353)

Colorectal

O/E

13/18.514

5/3.933

1/1.803

0/0.491

0/0.386

SIR (CI)

0.702 (0.32 to 1.084)

1.271 (0.413 to 2.967)

0.555 (0.014 to 3.09)

0 (0 to 7.518)

0 (0 to 9.55)

Endometrial

O/E

0/1.883

0/0.742

0/0.238

2/0.066

0/0.044

SIR (CI)

0 (0 to 1.959)

0 (0 to 4.974)

0 (0 to 15.512)

30.529 (3.697 to 110.283)

0 (0 to 84.476)

Lung

O/E

14/15.667

0/2.637

7/1.424

2/0.363

0/0.319

SIR (CI)

0.894 (0.489 to 1.499)

0 (0 to 1.399)

4.917 (1.977 to 10.131)

5.514 (0.668 to 19.917)

0 (0 to 11.546)

NHL

O/E

8/2.462

5/0.675

1/0.242

1/0.071

0/0.049

SIR (CI)

3.387 (1.462 to 6.673)

7.408 (2.405 to 17.287)

4.141 (0.105 to 23.071)

14.088 (0.357 to 78.491)

0 (0 to 74.764)

Stomach

O/E

15/22.625

3/5.027

2/2.236

1/0.614

1/0.473

SIR (CI)

0.663 (0.327 to 0.998)

0.597 (0.123 to 1.744)

0.898 (0.109 to 3.245)

1.629 (0.041 to 9.076)

2.113 (0.054 to 11.774)

Thyroid

O/E

14/14.957

11/7.111

0/1.829

1/0.633

0/0.318

SIR (CI)

0.936 (0.446 to 1.426)

1.547 (0.633 to 2.461)

0 (0 to 2.017)

1.58 (0.04 to 8.805)

0 (0 to 11.601)

  1. aDM, dermatomyositis; E, expected cases; NHL, Non-Hodgkin’s lymphoma; O, observed cases; PM, polymyositis; RA, rheumatoid arthritis; SLE, systemic lupus erythematosus; SSc, systemic sclerosis. Numbers in parentheses represent the 95% confidence interval (CI). CIs in bold do not include 1. Data in bold are statistically significant.