This single-center retrospective observational study includes all human milk donors collaborating with the milk bank at České Budějovice Hospital between 2021 and 2025. Using anonymized data extracted from the hospital database, the study will quantify the frequency of donations and the individual and cumulative volume of donated human milk and will assess the impact of key maternal and perinatal factors - including age, BMI, parity, mode of delivery, and timing of donations - on the quantity and quality of donated milk, based on routine biochemical and microbiological parameters.
Donor human milk is a key component of nutritional care for preterm and high-risk neonates when mother's own milk is unavailable or insufficient. A better under-standing of which factors are associated with higher or lower donated volumes, and with favorable biochemical and microbiological milk characteristics, may help optimize several aspects of milk bank practice. This study aims to characterize a five-year experience from a single hospital-based human milk bank in terms of donation pat-terns and donated milk volume. It also aims to evaluate the relationship between key maternal and perinatal characteristics and both the quantity and routinely assessed quality of donated human milk.
Study Type
OBSERVATIONAL
Enrollment
500
Retrospective observational study based on routinely collected clinical and milk bank data; no experimental procedure, treatment, or behavioral intervention is administered.
Department of Epidemiology and Biostatistics, Third Faculty of Medicine, Charles University
Prague, Czechia
Donation intensity
Donation intensity, defined as the cumulative volume of donated human milk per donor (mL) and the number of donation episodes per donor over the individual donation period within the 5-year study window (2021-2025).
Time frame: Assessed at the end of each donor's donation period (from first to last recorded donation), within January 1, 2021 to December 31, 2025.
Quality of donated human milk
Quality of donated human milk, assessed by routine biochemical composition parameters and microbiological safety indicators over the individual donation period within the 5-year study window (2021-2025). Biochemical composition parameters: fat (g/L), protein (g/L), carbohydrate (g/L), and calculated energy content (kcal/100 mL) Microbiological safety indicators: total viable bacterial count (CFU/mL) and culture result classified as pass/fail according to the milk bank's routine acceptance criteria
Time frame: Assessed at the end of each donor's donation period (from first to last recorded donation), within January 1, 2021 to December 31, 2025.
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