Exact(5)
In the event of multiple gestations, the outcome of the first-born infant was recorded.
Information on factors characterising each woman's first pregnancy was obtained from the birth record of her first-born infant.
In 2014, the protocol was amended (and approved by the relevant ethics committees) to limit our analyses to the first-born infant only in cases of multiple births.
Multiple pregnancies were included; however, only data on the first-born infant were used, as only these were linked to maternal data.
For pregnancies yielding more than one birth (ie, twins or more), only the birth record for the first-born infant was extracted.
Similar(55)
Parity was associated with cortisol levels such that first-born infants had lower resting cortisol and higher reactivity than infants born to multiparous women.
Current evidence suggests that first-born infants grow faster than later-born infants[10].
This study showed that the risk of early cessation of EBF was nearly five folds more in first-born infants than fifth and more born infants.
This "parenting" intervention is being compared with a home safety control among first-born infants and their parents.
Among the Sami, first-born infants had the second largest risk of dying, whereas among the non-Sami they experienced the greatest risk.
Infants with low birth weight and/or small for gestational age, as well as first-born infants, were overrepresented (Table 1).
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