| 2004 | 2011 |
---|---|---|
Sent out (approximate) | 200 | 317 |
Received (response rate) | 90 (45%) | 110 (35%) |
Excluded because <5% time worked with Br Ca | 9 | 15 |
Excluded because had XRT | 0 | 1 |
Excluded because of invalid answers | 1 | 2 |
Total number excluded | 10 (11%) | 18 (16%) |
Number analysed | 80 89% of those received40% of those sent out | 9284% of those received29% of those sent out |