Heterogeneous methodology of racial/ethnic classification may be responsible for the different risk assessments for prostate cancer between Black and White men in Brazil
Int. braz. j. urol
;
41(2): 360-366, Mar-Apr/2015. tab
Article
in English
| LILACS
| ID: lil-748293
ABSTRACT
Objectives To evaluate if the different results of prostate cancer risk between black and white Brazilian men may be associated with the varying methodology used to define participants as either Blacks or Whites. Patients and Methods We evaluated median PSA values, rate of PSA level ≥4.0 ng/mL, indications for prostate biopsy, prostate cancer detection rate, biopsy/cancer rate, cancer/biopsy rate, and the relative risk of cancer between blacks versus whites, blacks versus non-blacks (browns and whites), non-whites (browns and blacks) versus whites, African versus non-African descendants, and African descendants or blacks versus non-African descendants and non-blacks. Results From 1544 participants, there were 51.4% whites, 37.2% browns, 11.4% blacks, and 5.4% African descendants. Median PSA level was 0.9 ng/mL in whites, browns, and non-African descendants, compared to 1.2 ng/mL in blacks, and African descendants or blacks, and 1.3 ng/mL in African descendants. Indications for prostate biopsy were present in 16.9% for African descendants, 15.9% of black, 12.3% of white, 11.4% for non-African descendants, and 9.9% of brown participants. Prostate cancer was diagnosed in 30.3% of performed biopsies 6.2% of African descendants, 5.1% of blacks, 3.3% of whites, 3.0% of non-African descendants, and 2.6% of browns. Conclusions Median PSA values were higher for Blacks versus Whites in all classification systems, except for non-white versus white men. The rate of prostate biopsy, prostate cancer detection rate, and relative risk for cancer was increased in African descendants, and African descendants or blacks, compared to non-African descendants, and non-African descendants and non-blacks, respectively. .
Full text:
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Index:
LILACS (Americas)
Main subject:
Prostatic Neoplasms
/
Prostate-Specific Antigen
/
Risk Assessment
/
Black People
/
White People
/
Ethnology
Type of study:
Etiology study
/
Evaluation studies
/
Risk factors
Limits:
Humans
/
Male
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Int. braz. j. urol
Journal subject:
Urology
Year:
2015
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Hospital Policlínica Cascavel/BR
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