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Table 1 All observed and expected cancers, along with standardized incidence ratio and 95% confidence interval

From: Cancer risk in childhood-onset systemic lupus

All cancers

Observed

Expected

SIR

95% CI

Stratified by sex

    

 Male

2.0

0.5

4.4

0.5, 16.0

 Female

12.0

2.6

4.6

2.4, 8.1

Stratified by age group

    

 0 to 19 years

3.0

0.8

3.9

0.8, 11.4

 20+ years

11.0

2.3

4.8

2.4, 8.6

Stratified by SLE duration

    

  < 1 year

2.0

0.1

15.2

1.8, 54.9

 1 to 4 years

1.0

0.6

1.8

0.0, 9.9

 5 to 9 years

1.0

0.6

1.7

0.0, 9.6

 10 to 19 years

8.0

0.9

9.2

4.0, 18.2

 20+ years

2.0

0.7

3.1

0.4, 11.1

  1. CI, confidence interval; SIR, standardized incidence ratio; SLE, systemic lupus erythematosus.