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Objectives: To investigate the prevalence of erectile dysfunction (ED) in living donors before and after nephrectomy in China. Methods: From January 2006 to December 2008, erectile function of 94 living donors was evaluated before and after nephrectomy by International Index of Erectile Function, version 5 (IIEF-5). A subanalysis was performed by splitting the total cohort into 2 age groups: those <40 years of age (group 1, n = 21) and those ≥40 years of age (group 2, n = 73). Results: Before and after nephrectomy, the prevalence of ED in group 1 was 9.5% and 19.0% respectively, and in group 2 was 38.4% and 56.2%. The difference between groups was statistically significant at the stage of preoperation (9.5% vs 38.4%, P = .012) and 12 months postoperation (19.0% vs 56.2% P = .003). Compared with the stage of preoperation, the prevalence of ED at the stage of postoperation was significantly increased at group 2 (38.4% vs 56.2%, P = .031), but not in group 1 (9.5% vs 19.0%, P = .663). Conclusions: The prevalence of ED increased in living donors aged more than 40 years after nephrectomy in China. The change in sexual function of these living donors after nephrectomy should cause clinicians'' attention. [Copyright &y& Elsevier]

Abstract: A round robin study across 15 laboratories in China was carried out using single junction devices with an active area of 1cm2 and differently sized small module with an active area of 20 and 24cm2 respectively. The devices represented the state of the art in terms of processing as they did not employ indium or vacuum and were prepared using only printing and coating techniques on flexible substrates. The devices were studied in their flexible form and thus approach the vision of what the polymer solar cell is. The main purpose of the work was to establish and chart geographic and cultural differences in what constitutes a competent IV-characterization procedure and also to establish the spread in measured data across the globe. The main finding is that efficiency data deviated up to 30% from the mean while an overall relative standard deviation of 12% was observed. Collating this spread with previous findings points toward a seemingly region-independent i.e. global observation of the uncertainty in the IV-characterization of a polymer solar cell. Finally, we highlight what might be done to improve the accuracy of the reported data. [Copyright &y& Elsevier]