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Table 5 SIR values(95%CI) in relation to overall cancer incidence and some selected tumour types and laterality and bilaterality at diagnosis of gynecomastia. Included are only prospective cases.

From: Male gynecomastia and risk for malignant tumours – a cohort study

 

Gynecomastia

 

Unilateral right

Bilateral left

Tumour type

   

all sites

1.22(0.89–1.71)

0.90(0.60–1.31)

0.87(0.35–1.79)

testicle

4.03(0.10–22.97)

9.26(1.12–33.47)

0.00(0.00–71.05)

esophagus

6.11(0.74–22.08)

0.00(0.00–10.22)

10.33(0.26–57.55)

skin cancer (melanoma excl.)

2.44(0.67–6.29)

4.18(1.80–8.24)

1.99(0.05–11.06)

number

196

194

55

personyears

3588

3910

878