(HealthDay News) — From 2005 to 2015, there was a decrease in living kidney donation in men, while donation was stable for women, according to a study published online in the Journal of the American Society of Nephrology.

Jagbir Gill, MD, MPH, from the University of British Columbia in Vancouver, Canada, and colleagues used data from the Scientific Registry of Transplant Recipients and the US Census to examine longitudinal changes in living kidney donation between 2005 and 2015.

The researchers found that the unadjusted rate of donation was 30.1 and 19.3 per million population in women and men, respectively, during the study period; the adjusted incidence of donation was 44% higher in women. The incidence of donation decreased among men (incidence rate ratio, 0.75; 95% confidence interval, 0.68 to 0.83) and was stable in women (incidence rate ratio, 0.95; 95% confidence interval, 0.84 to 1.07). There was a correlation for income with longitudinal changes in donation in both sexes; donation was stable in the highest two population income quartiles and in the highest income quartile in women and men, respectively. Living related donations declined in both sexes, irrespective of income.

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“In conclusion, living donation declined in men but remained stable in women between 2005 and 2015, and income appeared to have a greater effect on living donation in men,” the authors write.

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Gill J, Joffres Y, Rose C, Lesage J, Landsberg D, Kadatz M, Gill J. The Change in Living Kidney Donation in Women and Men in the United States (2005–2015): A Population-Based Analysis. J Am Soc Nephrol. doi: 10.1681/ASN.2017111160
Matas AJ and Hays RE. Gender Disparities and Financial Barriers to Living Kidney Donation. J Am Soc Nephrol. doi: 10.1681/ASN.2018020158