Sentence examples for multiple birth file from inspiring English sources
Study Design: We used the 1995 to 1997 matched multiple birth file for United States twin births (n = 269,287).
We used the matched multiple birth file created by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention [ 15].
The multiple birth file in 1995 1997 in the United States were linked infant deaths information according to uniform coding specifications, which have undergone vigorous editing and reviewing during the process of the record linkage.
We carried out a population-based retrospective cohort study based on the registry data in the United States for the period of 1995 1997, which was a matched multiple birth file (only twins were included in the current analysis).
Sets of multiples in the 1995 1997 birth file were matched by plurality, state and county of occurrence of delivery, mother's date of birth, date of last menstrual period (LMP), number of prenatal visits, level of education, weight gain during pregnancy, and date of delivery.
In the adjusted model (Table 2 – see additional file 2), with multiple birth status and other factors controlled, children born to mothers with secondary education or more were less likely to die before reaching their first birthday than children of mothers with no education (HR = 0.51; 95% CI: 0.36, 0.72).
Comprehensive details on sex, gestational age, birth weight, birth order, birth place, and multiple birth status are contained within the birth certificate files, along with details on the age, years of education, and working status of the parents at the time of the birth.
bAdjusted for all other variables in the column Morbidity or transfusion was more common among women with postpartum haemorrhage in the context of multiple birth, previous caesarean, previous PPH, placenta praevia and morbidly adherent placenta (Additional file 1: Table S1).
The sample distribution of children born in the five years preceding the 2003 Nigeria Demographic and Health Survey (NDHS) by multiple birth status and other selected characteristics are shown in Table 1 (see additional file 1).
TWIN TALES: The Magic and Mystery of Multiple Birth.
