Completion of some form of post-secondary education and being unmarried were associated with lower probabilities of a spontaneous vaginal birth, whereas being in established labour at trial entry and allocation to structured care were associated with higher probabilities of a spontaneous vaginal birth.
Trial entry and randomisation: Allocation to intervention will be undertaken using a telephone randomisation service (computer-generated random number sequence generation, with balanced variable blocks, and stratification by insulin requirement).
Only one member of the research team, not involved in data entry or intervention allocation, had access to a password-protected database on a secure computer containing the personal identifying information associated with each unique study number.
As noted, a rationale must be given for marriage law which explains the restrictions placed on entry and exit, the allocation of resources to marriage, and legal discrimination on the basis of it.
Additionally, an independent, quality assured data-entry company undertakes all data entry unaware of group allocation.
Still, assessor-blinding will be achieved by blinding the assessor performing outcome assessment and CRF data entry to the random allocation and treatment of subjects.
At that time, the expression of the precoding matrix is less complex with only b variables corresponding to the b diagonal entries of the power allocation matrix.
According to (25) and (27), the diagonal entries of the power allocation matrix Σ can be defined by σ i = E s ∑ j = 1 k ϕ j ρ j − 1 ϕ i ρ i − 1, (30).
Sequences will be generated using permuted block randomisation, with random block sizes of 6,8 or 10 entries and a 1 1 allocation ratio using an online true random number generation service [ 19].
A risk of bias table will be generated with the following entries: adequate sequence generation, allocation concealment, blinding, incomplete outcome data addressed, free of selective reporting, and free of other bias.
