Frequent use of complementary medicine by prostate cancer patients

Objectives: To assess the use of complementary and alternative medicine (CAM) by prostate cancer patients and to characterize CAM-users in this population. Methods: Prostate cancer patients who underwent routine follow-up at urological practices completed an anonymous, self-administered questionnaire on lower urinary tract function, sexuality, quality of life and use of CAM. All patients with biopsy proven cancer irrespective of age, stage and therapy were eligible. Results: 822 men (69 +/- 8.5 years; range: 45-95) entered this survey. 245 men (29.8%) used at least one form of CAM, most frequent forms were fat-reduced diet (13.3%), selenium (10.8%) and vitamin E (9.3%). CAM-users did not differ regarding age (68.6 vs. 69.2 years), time interval between diagnosis and current evaluation (4.4 vs. 3.8 years) and PSA at diagnosis (24.9 vs. 18.5 ng/ml) from non-users. CAM-use was dependent on primary therapy (radical prostatectomy: 23.3%, radiotherapy: 31.6%, endocrine therapy: 38.8%) and disease progression. CAM-users were generally less satisfied with their treatment and rated health status and quality of life lower than those not using CAM (all p < 0.001). Conclusions: CAM is used by almost 1/3 of prostate cancer patients in Austria, particularly by those with disease progression, impaired quality of life and treatment satisfaction. Urologists have to be aware of this fact and require a detailed knowledge on this issue to provide objective and evidence-based information. (C) 2003 Elsevier Science B.V. All rights reserved.