Systemic Factors Contributing to Gender Differences in Living Kidney Donation: A Systematic Review and Meta-Synthesis Using the Social-Ecological Model Lens.

Introduction: The field of living kidney donation is profoundly gendered contributing to a predominance of women, mothers, and wives as living kidney donors (LKDs). Individual factors have traditionally been emphasized, and there is a limited appreciation of relational, community, and sociocultural influences in decision-making. We aimed to comprehensively capture existing evidence to examine the relative importance of these factors.

Methods: This was a systematic review of existing literature that has explored the motivation of different genders to become LKDs. Of the 3,188 records screened, 16 studies from 13 counties were included. Data were synthesized thematically using the Social-Ecological Model lens.

Results: At the individual level, themes related to intrinsic motivation; thoughtful deliberation; and attitudes, fears, and beliefs; however, evidence demonstrating differences between men and women was minimal. Greater variation between genders emerged along the relational (coercion from family/network, relationship with the intended recipient, self-sacrifice within the family unit, and stability/acceptance within family); community (economic value and geographic proximity to recipient); and sociocultural (gendered societal roles, social norms and beliefs, social privilege, and legislation and policy) dimensions. The relative importance of each factor varied by context; cultural components were inferred in each study, and economic considerations seemed to transcend the gender divide.

Conclusions: A complex interplay of factors at relational, community, and sociocultural levels influences gender roles, relations, and norms and manifests as gender disparities in living kidney donation. Our findings suggest that to address gender disparities in living donation, dismantling of deep-rooted systemic contributors to gender inequities is needed.