Cost of operating a human milk bank in the UK: a microcosting analysis

ObjectiveGlobally, demand for donor human milk (DHM) is increasing with WHO guidelines recommending DHM as the first line nutrition for premature infants in the absence or shortfall of maternal milk. Policymakers and clinicians currently have limited knowledge regarding costs incurred by human milk banks (HMBs) making the planning and resourcing of these services challenging. This study aimed to evaluate costs in a national network of HMBs in the UK.

All 14 UK HMBS were invited to complete a bottom-up microcosting survey from 1 April 2021 to 31 March 2022 covering four key areas: Staffing, equipment, donor screening and incidental costs. Total annual salary costs included on-costs (ie, national insurance, pensions), qualifications, overheads (ie, non-staff costs) and capital overheads. The annual equivalent costs for each equipment item were based on the total cost over its useful life and discounted at 3.5%.

10 out of 14 milk banks provided responses with more complete datasets returned by larger milk banks. Staffing costs ranged from £24 983 to £476 194 (n=9, mean: £159 798) and considerable expertise was provided voluntarily or from non-costed staffing. Other costs included equipment (n=7, range: £2600-£51 453, mean: £19 279), donor screening (n=6, range: £925-£38 057, mean: £18 570), incidentals (n=6, range: £650-£109 996, mean: £23 774). The total annual cost of operating a milk bank annually was £202 719 (range, £27 583-£675 699) to provide between 205 and 3495 litres of DHM. The cost per litre averaged £173.49 (range, £95.94-£274.88).

The average cost of DHM is currently higher than current cost recovery tariffs and this study likely under-represents total costs. This study provides useful benchmarking data for future economic analyses, trial development and service planning.