Why Are Men Missing Cancer Tests Despite Higher Positive Rates?

Men whitethorn beryllium slipping done nan cracks successful crab prevention, arsenic caller investigation shows they are acold little apt to acquisition familial testing contempt being much apt to transportation high-risk crab variants erstwhile they do.

Study: Testing for hereditary crab genes successful men: a missed opportunity for crab prevention. Image credit: Pixel-Shot/Shutterstock.com

A study published in Frontiers successful Oncology recovered that less men acquisition familial testing for hereditary crab syndromes compared to women, but are much apt to trial positive. This whitethorn bespeak a imaginable spread successful crab consequence surveillance and prediction.

Genetic testing reveals inherited crab risks, but often misses men 

Genetic testing for inherited crab syndromes is an important instrumentality to place familial crab risks. At-risk patients tin beryllium monitored, their relatives screened, and early involution offered wherever appropriate.

Women person benefited from familial testing. Professional aesculapian associations and organizations urge that superior attraction providers measure each women for hereditary bosom and ovarian crab consequence factors, including individual aliases family history of cancer, aliases Ashkenazi Jewish ancestry. These women whitethorn past beryllium offered familial testing for hereditary bosom and ovarian crab syndromes linked to nan beingness of BRCA variants.

Similar protocols person been established for different inherited crab syndromes successful women, including Lynch syndrome. Clinical protocols person besides been published for men pinch BRCA1/2 variants, and nan researchers recommended regular screening and intervention, arsenic good arsenic familial consequence education, to place much men pinch specified variants.

However, location is simply a deficiency of published studies connected hereditary crab testing successful men. This limits existent knowing of men's uptake of hereditary crab testing and of what predicts higher uptake. The existent study sought to capable this gap, successful position of nan higher cancer-related morbidity and mortality rates successful men compared to women.

Comparing testing patterns by sex 

The researchers conducted a retrospective study of laboratory crab testing information from adults collected betwixt June 2020 and August 2023. This compared testing successful men and women.

The study included appraisal of demographic details, individual and family history of cancer, cistron sheet size, trial results, and nan proportionality of tests that identified variants for which objective actions specified arsenic surveillance aliases involution person been recommended.

Gene sheet size was stratified arsenic mini (<20 genes), mean (20–53 genes), and ample (>53 genes).

Men dress up conscionable 5 percent of tests

The study analyzed information from 224,041 individuals, of whom only 5 % were men, highlighting a gender imbalance successful familial testing uptake. Men were besides older astatine nan clip of testing, pinch an mean property of 54 years compared to 43 years successful women. Among participants pinch disposable ethnicity data, 47 % were White, while Hispanic and Black individuals accounted for 14 % and 13 %, respectively.

Clear differences emerged successful really and why men and women underwent testing. Men were much apt to beryllium of Ashkenazi Jewish ancestry and were 7 times much apt than women to beryllium tested done cascade testing aft a pathogenic version had been identified successful a relative. At nan aforesaid time, men were importantly much apt to person a individual history of crab (27 % vs 13 %), but little apt to study a family history of cancer, pinch missing family history information besides much communal among men.

Referral pathways besides differed by sex. Men were typically referred done superior attraction aliases wide specialty clinics, specified arsenic soul aliases family medicine, whereas women were much often referred done women’s wellness services. In addition, men were much apt to person larger aliases civilization cistron panels, astatine rates 3 to 4 times higher than those seen successful women.

Despite being tested little often, men were much apt to person clinically important results. The positivity complaint for pathogenic aliases apt pathogenic variants was 14 % successful men, compared to 8 % successful women, which is notably higher than nan astir 5 % complaint reported successful unselected populations. Among individuals pinch specified variants and disposable objective data, 35.1 % of men and 19.3 % of women reported a individual history of cancer.

The types of cancers observed successful men besides showed chopped patterns. Among those pinch a individual crab history, prostate, colorectal, and pancreatic cancers were nan astir commonly reported. However, pathogenic variants were astir powerfully associated pinch lung, stomach, colorectal, and aggregate cancers successful men.

Men were besides much apt to transportation actionable variants, peculiarly successful BRCA1/2 genes, which were identified 3 times much often successful men than successful women. Together, these findings propose that men whitethorn beryllium undergoing testing later successful nan illness course, perchance aft crab has already developed, alternatively than arsenic portion of preventive consequence assessment.

Men are often tested only aft a crab diagnosis 

The authors propose respective reasons for this disparity. Men whitethorn beryllium referred for testing chiefly aft a crab diagnosis, often to guideline curen decisions aliases corroborate tumor-related findings. More broadly, little engagement pinch preventive healthcare, reduced health-seeking behavior, and little referral rates whitethorn each lend to nan underutilization of familial testing successful men. Hesitancy to prosecute testing without a clear aliases contiguous risk, on pinch nan deficiency of male-specific screening guidelines, whitethorn further limit uptake.

These challenges are compounded by limitations successful existent consequence appraisal tools. Existing BRCA-related prediction models are mostly designed for women and whitethorn not accurately place men who would use from testing, peculiarly those pinch prostate cancer. In addition, men pinch pathogenic BRCA1/2 variants are little apt to acquisition familial counseling, contempt nan implications not only for their ain crab consequence but besides for their relatives, including daughters astatine consequence of bosom and ovarian cancer.

Improve male-focused crab consequence prediction tools

The authors propose 4 courses of action: improving investigation to amended archive and understand family crab history among men, optimizing male-focused hereditary crab consequence prediction tools, identifying and addressing nan reasons for debased uptake of familial counseling and preventive care, and integrating hereditary crab screening much afloat into regular healthcare for men, peculiarly successful superior attraction settings.

Strengths and limitations

This study utilized a ample diligent sample from crossed nan US, including galore individuals without a individual history of cancer, astir of whom tested negative. However, it had immoderate limitations:
Reliance connected patient- aliases provider-reported family crab history whitethorn present callback bias, arsenic good arsenic an older mean property for men compared to women, which could lend to action bias.

In addition, astir tests were ordered done women’s wellness aliases obstetrics/gynecology clinics, and utilizing information from a azygous laboratory whitethorn exclude individuals tested elsewhere. The retrospective creation utilizing information from a azygous commercialized laboratory whitethorn besides limit generalizability to nan broader population, and location whitethorn beryllium imaginable conflicts of interest, arsenic respective authors are affiliated pinch nan laboratory that provided nan data.

Closing testing gaps could amended crab outcomes

While men were little apt to acquisition familial testing for hereditary cancers, compared to women, they were much apt to trial affirmative erstwhile tested. Future investigation should found nan barriers to testing successful men. In addition, healthcare professionals should beryllium made alert of nan request for specified screening to guarantee amended crab outcomes for these patients and their families.

These findings underscore nan request for greater integration of regular screening for hereditary crab consequence factors for men successful superior attraction settings.

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