From: Breast cancer histological classification: agreement between the Office for National Statistics and the National Health Service Breast Screening Programme
NHSBSP
Total
ONS
Invasive
Non-invasive
4,567
148
4,715
54
1,117
1,171
4,621
1,265
5,886
Percentage agreement
96.6%
Kappa statistic
0.9
Test for heterogeneity
X21
6.1
p
0.01