This study aims to examine how the sociodemographic and professional characteristics of nurses in Jordan correlate with their levels of knowledge, attitudes, and ageism toward older adults. Ageism has not been studied in Jordan as it pertains to nurses, so a descriptive, correlational, cross‐sectional design, with a convenience sample of 317 Jordanian nurses, using the Fact on Aging Quiz 1, Fraboni Scale of Ageism, and Relating to Older People Evaluation was conducted in January to February 2019. Significant ageism was found, and differences in knowledge, attitudes, and negative ageism vary among nurses by sociodemographic/professional characteristics. Knowledge and attitudes toward older adults significantly correlate with negative ageism which is associated with poor health outcomes for older adults. Our findings reveal that even in a country with high religious observance and close family ties, ageism exists in healthcare settings because of nurses' poor knowledge and attitudes toward older adults. These findings have implications for nursing education, clinical practice, and health policy. Changes across these sectors based on the findings may contribute to reducing ageist practices and improving older adult health outcomes.

Purpose This study aims to examine the association between nurses’ ageism and their knowledge about aging and socio-demographic and professional characteristics in recent international nursing research studies. Design/methodology/approach An extensive search of seven databases covering papers since 2000 was undertaken and Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed. Findings Ageism among nurses is still poorly understood. It is evident that ageism is associated with poor nurses’ level of knowledge about aging. A range of nurses’ demographical and professional characteristics have been examined as potential predictors of ageism, but they were inconsistent with positive, negative and neutral associations. Originality/value There is a lack of robustly designed studies investigating the association of nurses’ level of knowledge about aging and their socio-demographical and professional characteristics to ageism. Future descriptive-correlational and interventional studies are recommended to understand and target ageism in health-care settings.

Despite the high prevalence of ageism worldwide, it is still underestimated and unrecognized by many nurses. Concept clarification is required to delineate the meaning of the word "ageism" in nursing. The purpose of this concept analysis is to clearly define the concept of ageism relative to nursing discipline using the Walker and Avant method. Defining the concept of ageism will provide nurses with a better understanding of its causes and consequences. It will aid policy makers in developing policies and interventions to help decrease ageism in health care environments.

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