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Changes in the prevalence of benign prostatic hyperplasia in China.

OBJECTIVE
To understand the rapid increase of benign prostatic hyperplasia (BPH) in China by a comparative study of the nutrition status and BPH morbidity between urban and rural areas.


METHODS
A study was conducted in 1993-1995 in Beijing on the influence of diet on the prevalence of BPH in 413 rural and 419 urban male inhabitants over 40 years of age.


RESULTS
The results indicated distinctive differences in dietary patterns and the prevalence of BPH between rural and urban inhabitants.


CONCLUSION
The changing prevalence of BPH in China can be attributed to the increased daily intake of total calories, fat and animal protein, and the decreased daily intake of vegetables and whole grain, the sources of phytoestrogens.