Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition · 2025
Exploring barriers and enablers of vitamin C nutrition care in General Medicine patients: A mixed methods study.
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Golder Janet E, Bauer Judith D, Barker Lisa A, Lemoh Christopher N, Foster Abby M, Breik Lina, Ng Mei Y, Gibson Simone J, Davidson Zoe E
Аннотация
BACKGROUND: Vitamin C deficiency (VCD) is common in adult inpatients in high-income countries and is associated with moderate to severe frailty, cognitive impairment, and scurvy signs and symptoms. However, clinical practice associated with vitamin C status has not been explored in this setting. This study aims to describe current vitamin C clinical practices and explore barriers and enablers that influence nutrition care delivered to adult hospitalized patients within routine clinical practice.
METHOD: This study was conducted across General Medicine units at a tertiary health service in Melbourne, Australia. Using an explanatory, sequential mixed methods design, data across each stage of the Nutrition Care Process (NCP) was triangulated from three phases involving analysis of clinical guidelines, file review data of patients with VCD (n = 100) according to plasma vitamin C levels, and focus groups informed by the Theoretical Domains Framework.
RESULTS: Triangulated data revealed that barriers to vitamin C nutrition care include infrequent assessment, influenced by environmental factors, beliefs about consequences, clinical priority, and healthcare professionals' (HCPs') knowledge. Enablers include strong belief in nutrition care capability and belief that vitamin C nutrition care is within HCPs' roles. Low suspected VCD diagnosis and low intervention and discharge planning rates were also observed. The single vitamin C clinical guideline lacked detail across specific stages of the NCP.
CONCLUSION: Limited vitamin C nutrition care potentially occurs in adult inpatients, hindered predominantly by assessment barriers. To achieve improvements in clinical practice, a theoretically driven implementation strategy targeted to healthcare systems, clinician behavior, and national quality standards is required.
METHOD: This study was conducted across General Medicine units at a tertiary health service in Melbourne, Australia. Using an explanatory, sequential mixed methods design, data across each stage of the Nutrition Care Process (NCP) was triangulated from three phases involving analysis of clinical guidelines, file review data of patients with VCD (n = 100) according to plasma vitamin C levels, and focus groups informed by the Theoretical Domains Framework.
RESULTS: Triangulated data revealed that barriers to vitamin C nutrition care include infrequent assessment, influenced by environmental factors, beliefs about consequences, clinical priority, and healthcare professionals' (HCPs') knowledge. Enablers include strong belief in nutrition care capability and belief that vitamin C nutrition care is within HCPs' roles. Low suspected VCD diagnosis and low intervention and discharge planning rates were also observed. The single vitamin C clinical guideline lacked detail across specific stages of the NCP.
CONCLUSION: Limited vitamin C nutrition care potentially occurs in adult inpatients, hindered predominantly by assessment barriers. To achieve improvements in clinical practice, a theoretically driven implementation strategy targeted to healthcare systems, clinician behavior, and national quality standards is required.