Pubic hair | Head hair | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | U− | U+ | A− | A+ | Anh | N | U− | U+ | A− | A+ | Anh | ||
Ring1-150 (%) | 5 (19) | 6 (26) | 6 (67) | 5 (24) | 6 (24) | 1 (33) | 15 (56) | 15 (65) | 7 (70) | 10 (48) | 7 (28) | 1 (33) | |
No ring (%) | 22 (81) | 17 (74) | 3 (33) | 16 (76) | 19 (76) | 2 (67) | 12 (44) | 8 (35) | 3 (30) | 11 (52) | 18 (72) | 2 (67) | |
Total = 217 | 27 | 23 | 91-151 | 21 | 25 | 3 | 27 | 23 | 10 | 21 | 25 | 3 |
N = control from normal population. U = unaffected (known not to have breast cancer). A = affected (known to have breast cancer). +/− = tested positive/negative for mutations inBRCA1 and BRCA2genes. nh = no family history.
↵1-150 Includes complete and partial ring. James et al 4 suggest that pubic hair should be used for diagnostic purposes; 50% of all head hair samples show the ring in contrast to only 27% of pubic hair samples. This difference may arise from hair treatment among other factors.
↵1-151 One woman supplied only head hair.