Exact(2)
In all three regions, the lowest risk of MMMI corresponded to the birthweight range of 3000 3500 g, which was used as the reference group.
We used the birthweight range of 3000 3499 g or at 50th 74th percentiles as the reference groups because our exploratory analyses showed that the nadir of the birthweight-specific mortality rate fell into these ranges.
Similar(58)
Perinatal deaths occurred between 24+6 and 35+0 weeks gestation corresponding to birthweights ranging from 460 to 2260 grams.
All infants of the maternal smoking groups had lower birthweights, ranging from 117 g (1-10 cigaretoes/day) to 351 g (>10 cigarettes/day).
Stillbirths occurred at gestational ages between 24+6 and 31+3 weeks with birthweights ranging from 460 to 740 grams (mean 607 grams).
This report showed a birthweight reference range for exclusive use in the assessment of multiple births.
Low birthweight prevalence ranged between 11.5 and 20.0% across all sites for offspring of mothers and fathers.
This study has addressed both the above issues and in addition provides birthweight reference ranges with regard to sex of the baby and maternal parity.
The aim of this research is to present a methdologic approach to constructing birthweight reference ranges for multiples based on Japanese birth certificates, and also to clarify how the population-based data are useful for creation of birthweight reference for multiple births.
Links between low birthweight and a range of motor and cognitive problems have been well established by previous research.
When the infants reached an average weight of 2 kilograms, those with a birthweight in the range of 700 to 1000 grams had achieved greater than the 10th percentile on average for head growth, but remained below the 3rd percentile for weight and length.
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