Feature

Missing value count

Missing value percent

Tumor_stage

501

26.31%

3-gene_classifier_subtype

106

10.71%

Primary_tumor_laterality

72

5.57%

Neoplasm_histologic_grade

54

3.78%

Cellularity

45

2.84%

Mutation_count

30

2.36%

Er_status_measured_by_ihc

22

1.58%

Type_of_breast_surgery

20

1.16%

Tumor_size

15

1.05%

Tumor_other_histologic_subtype

15

0.79%

Cancer_type_detailed

15

0.79%

Oncotree_code

15

0.79%

Death_from_cancer

1

0.53%