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Table 1 Summary of samples and genotyping platforms used in the discovery and validation stages

From: A genome-wide association scan on estrogen receptor-negative breast cancer

Stage

Study

Type

No. of samples after quality control

Genotyping platform

Discovery

Swedish

ER-negative cases

153

HumanHap300 supplemented by HumanHap240S

  

Controls

764

HumanHap550

  

Additional controls from EIRA study

650

HumanHap300

 

Finnish

ER-negative cases

226

HumanHap550

  

ER-negative cases

238

Quad610 (v1)

  

Controls

3169

HumanHap370Duo

Validation

SEARCH and RBCS

ER-negative cases

1011

Taqman

  

Controls

7604

Taqman

  1. ER, estrogen receptor; RBCS, Rotterdam Breast Cancer Study; SEARCH, Study of Epidemiology and Risk factors in Cancer Heredity.