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Table 3 Observed and expected numbers of lymphoproliferative diseases and SIRs with 95% CIs among NF1 individuals in our referral center for Neurofibromatoses

From: Lymphoproliferative malignancies in patients with neurofibromatosis 1

Lymphoproliferative disease

Observed

Expected

SIR

95% CI

p value

All

13

12.1

1.07

0.60–1.79

0.796

Lymphoma

9

7.8

1.15

0.56–2.12

0.667

 Non-Hodgkin lymphoma

7

6

1.17

0.51–2.31

0.683

 Hodgkin Lymphoma

2

1.8

1.11

0.19–3.67

0.881

Leukemia

4

4.3

0.93

0.30–2.24

0.885

  1. SIR standardized incidence ratios, CI confidence interval