Comparing the effect of a lactation-specific relaxation and visualisation intervention versus standard care on lactation and mental health outcomes in mothers of very premature infants (the EXPRESS trial): study protocol for a multi-centre, unmasked, randomised, parallel-group trial

Table 3 Examples of primary outcome calculation

	Day 4	Day 14	Day 21	Primary outcome
Scenario 1	300g	500g	750g	750g
Scenario 2	100g	450g	400g	450g
Scenario 3	50g	missing	missing	50g
Scenario 4	50g	150g	Stopped expressing (0g)	150g

ISSN: 1745-6215