2.4. Exposure

The unit questionnaire covered availability of dedicated lactation personnel, advice given about when to start milk expression, if the unit was accredited a Baby Friendly Hospital or national equivalent, provision of donor milk, and maternity and neonatal policies as shown in Table 1. Investigated unit policies were associated with interventions that could potentially influence establishment of lactation (Kramer et al., 2001; Maastrup, Bojesen, Kronborg, & Hallstrom, 2012; Merewood, Philipp, Chawla, & Cimo, 2003; L. A. Parker, Sullivan, Krueger, & Mueller, 2015; M. G. Parker, Burnham, Mao, Philipp, & Merewood, 2016; World health Organization, 2009). If there were incomplete answers, reminders were sent to the units, and in some cases, telephone interviews were performed for completion of the questionnaire.

Questions and results from unit policy questionnaires administrated to head of the maternal and neonatal units.