| Literature DB >> 17285126 |
C Foster1, M Watson, R Eeles, D Eccles, S Ashley, R Davidson, J Mackay, P J Morrison, P Hopwood, D G R Evans.
Abstract
This prospective multicentre study assesses long-term impact of genetic testing for breast/ovarian cancer predisposition in a clinical cohort. Areas evaluated include risk management, distress and insurance problems 3 years post-testing. Participants are adults unaffected with cancer from families with a known BRCA1/2 mutation. One hundred and ninety-three out of 285 (70% response) participants at nine UK clinical genetics centres completed assessments at 3 years: 80% female; 37% carriers of a BRCA1/2 mutation. In the 3 years, post-genetic testing carriers reported more risk management activities than non-carriers. Fifty-five per cent of female carriers opted for risk reducing surgery; 43% oophorectomy; and 34% mastectomy. Eighty-nine per cent had mammograms compared with 47% non-carriers. Thirty-six per cent non-carriers > or =50 years did not have a mammogram post-test. Twenty-two per cent male carriers had colorectal and 44% prostate screening compared with 5 and 19% non-carriers respectively. Seven per cent carriers and 1% non-carriers developed cancer. Distress levels did not differ in carriers and non-carriers at 3-year follow-up. Forty per cent of female carriers reported difficulties with life and/or health insurance. Given the return to pre-test levels of concern among female non-carriers at 3 years and a substantial minority not engaging in recommended screening, there appears to be a need to help some women understand the meaning of their genetic status.Entities:
Mesh:
Year: 2007 PMID: 17285126 PMCID: PMC2360079 DOI: 10.1038/sj.bjc.6603610
Source DB: PubMed Journal: Br J Cancer ISSN: 0007-0920 Impact factor: 7.640
Socio-demographic characteristics of the participants
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| Participants | 154 | 39 | 193 |
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| Carriers | 53 | 18 | 71 |
| Non-carriers | 101 | 21 | 122 |
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| Median (Range) | 42 (23–72) | 52 (28–86) | 43 (23–86) |
| <35 | 33 | 5 | 38 |
| 35–49 | 81 | 12 | 93 |
| ⩾50 | 39 | 22 | 51 |
| No. of offspring | 21 | 3 | 24 |
| 1 or more | 132 (104) | 36 (29) | 168 (133) |
| Unknown | 1 | 0 | 1 |
Figures shown are N-values unless indicated otherwise.
At baseline.
Risk management options given as percentages undertaken by women at baseline and in the 3 years post-testing according to carrier status and age
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| <35 | 29 | 81 | 22 |
| 35–49 | 46 | 91 | 44 |
| >50 | 61 | 100 | 65 |
| Total | 45 | 89 | 46 |
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| <35 | 2 | 38 | 0 |
| 35–49 | 2 | 38 | 0 |
| ⩾50 | 0 | 0 | 0 |
| Total | 1 | 34 | 0 |
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| <35 | 2 | 25 | 0 |
| 35–49 | 10 | 54 | 3 |
| >50 | 30 | 40 | 7 |
| Total | 13 | 43 | 3 |
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| <35 | Not asked | 19 | 9 |
| 35–49 | 19 | 2 | |
| ⩾50 | 20 | 6 | |
| Total | 19 | 5 | |
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| <35 | Not asked | 13 | 0 |
| 35–49 | 4 | 0 | |
| >50 | 0 | 4 | |
| Total | 6 | 1 | |
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| <35 | 8 | 81 | 5 |
| 35–49 | 32 | 75 | 16 |
| ⩾50 | 26 | 60 | 25 |
| Total | 43 | 75 | 17 |
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| <35 | 35 | 88 | 39 |
| 35–49 | 48 | 81 | 51 |
| ⩾50 | 48 | 100 | 38 |
| Total | 45 | 85 | 44 |
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| <35 | 0 | 0 | 0 |
| 35–49 | 2 | 6 | 0 |
| ⩾50 | 10 | 20 | 6 |
| Total | 3 | 6 | 2 |
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| <35 | 85 | 81 | 100 |
| 35–49 | 91 | 97 | 98 |
| ⩾50 | 83 | 100 | 88 |
| Total | 88 | 91 | 95 |
Figures exclude patients who have had BRRM (*) or BRRO (+) as appropriate.
General mental health and cancer specific worry
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| Mean (s.d) | 2.7 (4.6) | 2.6 (3.8) | 4.5 (6.3) | 3.7 (5.3) | 0.3 |
| Median (range) | 0 (0–20) | 1 (0–15) | 1 (0–27) | 1 (0–24) | |
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| Mean (s.d) | 0.8 (2.6) | 1.9 (3.5) | 1.6 (3.6) | 2.5 (5.1) | 0.8 |
| Median (range) | 0 (0–11) | 0 (0–12) | 0 (0–12) | 0 (0–17) | |
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| | 6 (12%) | 8 (8%) | 9 (18%) | 16 (17%) | 1.0 |
| | 1 (6%) | 2 (10%) | 2 (11%) | 2 (10%) | |
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| Mean (s.d) | 11.7 (3.1) | 11.5 (3.4) | 10.4(3.6) | 9.3 (2.1) | 0.2 |
| Median (range) | 11 (6–21) | 11 (6–22) | 10 (6–21) | 9 (6–15) | |
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| Mean (s.d) | Not measured | 8.2 (2.0) | 8.1 (2.0) | ||
| Median (range) | 8 (6–13) | 8 (6–11) | |||
GHQ with binary scoring and ⩾10 cutoff to indicate cases.
Comparison of the change from baseline of carriers vs non-carriers.
Significant change from baseline P=0.03.