29 January 2019 : Original article
Are Females More Prone Than Males to Become Obese After Kidney Transplantation?
Katarzyna Hap1ABCDEF*, Katarzyna Madziarska1ACDFG, Wojciech Hap2BCDF, Sławomir Zmonarski1DFG, Dorota Zielińska1ACDFG, Dorota Kamińska1ACDFG, Mirosław Banasik1ACDFG, Katarzyna Kościelska-Kasprzak1CD, Marian Klinger1AG, Oktawia Mazanowska13ADGDOI: 10.12659/AOT.912096
Ann Transplant 2019; 24:57-61
Abstract
BACKGROUND: Being overweight for kidney transplant recipients can cause serious side effects. Weight gain affects two-thirds of kidney transplant recipients and has been attributed to a more liberal diet after transplantation, recovery of appetite due to lack of uremic toxicity, corticosteroid use, and inadequate lifestyle changes. The aim of this study was to assess gender-dependent profile of body mass index (BMI) changes after kidney transplantation (KTx).
MATERIAL AND METHODS: Sixty-two kidney transplant recipients (38 males and 24 females), aged 46.0±12.8 years at KTx, were observed according to weight gain after KTx. BMI was calculated before transplantation (pre-KTx) and at 6, 12, and 24 months post-KTx.
RESULTS: During the 24-month observation period, we found an increase in the incidence of kidney transplant recipients being overweight or obese (pre-KTx 43.5% increase and 24-month post-Ktx 61.3% increase, P=0.036). We analyzed a number of factors that could potentially influence a 24-month BMI gain including age at KTx, gender, pre-KTx BMI, time on dialysis, pre-KTx glucose metabolism disorder, and post-KTx diabetes mellitus. For female recipients, there was a significant step-wise post-KTx increase in BMI during the 24-month observation period. The overall pre-KTx to 24-month net increase for female BMI was 2 times greater than that observed for male recipients (1.90±2.20 kg/m² versus 0.89±1.85 kg/m², P<0.001).
CONCLUSIONS: Weight gain after KTx was observed in both sexes, but the net BMI increase was more than 2 times greater in females than in males at 24-months post-KTx. This indicated the need for diet education and strict weight control in kidney transplant recipients, especially in female patients.
Keywords: Kidney Transplantation, Obesity, overweight, Weight Gain, Body Mass Index, Postoperative Complications, Sex Factors
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