Sentences with phrase «at first birth»

Results show that the prevalence of third or fourth degree tearing at first birth for the cohort was 3.8 %.

I had always refused to test based on a midwife's advice at first birth.

Age at first birth is measured as age in the first interview following the birth, and coded as less than 30 years or 30 years and older.

Reexamining the Association of Maternal Age and Marital Status at First Birth With Youth Educational Attainment.

More on this episode here, including the video Katie recorded while pregnant with her second baby, sharing her experience with Dr. Mandeville at her first birth.

Episiotomy, hospital birth and cesarean section: technology gone haywire — what is the sutured tear rate at first births supposed to be?

We assumed that breastfeeding does not influence the costs of childbearing and discounted future costs by 3 % per year, the social discount rate, to the year when our hypothetical women were aged 25 years, the mean age of U.S. women at first birth.14 We performed sensitivity analyses with discount rates of 0 % and 5 %.

Additional control variables include the child's sex and race / ethnicity, whether the child was the mother's firstborn, and the age of the child's mother at her first birth.

A new study indicates that women who marry after the conception of a child but before the birth (the traditional «shotgun» marriage) are more likely to experience divorce in their first marriage than similar women who remain single at first birth!

Furthermore, the report found that among women who had a vaginal delivery at second birth, the rate of a severe tear was 7.2 % in women with a tear at first birth, compared to 1.3 % in women without, a more than five-fold increase in risk.

For white women in 2014, average age at first birth was 27; for Central and South Americans it was 26.5, and for women of Cuban descent it was 27.

For example, in two longitudinal studies of high - risk mothers («high - risk» due to low - socioeconomic status, single status, young age at first birth, and a history of abuse), the rate of intergenerational transmission ranged from 45 % (22) to 63 %.

Among women who had a third or fourth degree tear at first birth, 24.2 % were delivered by elective caesarean section, compared with 1.5 % of women who did not tear at first birth.

The total number of years a woman ovulated was not associated with risk of MS. Neither were other factors that would be part of that number, such as number of pregnancies, use of hormonal contraceptives and age at first birth.

Factors examined as potential confounders or effect modifiers included age (at breast cancer diagnosis for cases, at time of study enrollment for controls), age at first birth, number of children, birth of a son, history of breastfeeding, miscarriage, abortion, oral contraceptive use, smoking status, age at menarche and number of cell equivalents tested for detection of FMc.

While age at first birth has been inching up for some time, «we have seen sharper increases since 2009,» said lead author T.J. Mathews, a demographer at the CDC's National Center for Health Statistics (NCHS).

Adjusted for age, education, family history of breast cancer, history of benign breast disease, parity, age at first birth, age at menarche, age at menopause, oral contraceptive use, postmenopausal hormone use, BMI, physical activity, smoking, calcium supplement use, and alcohol intake.

Relative risks and 95 % CIs were estimated by using Cox proportional hazards models and were adjusted for age, education, family history of breast cancer, history of benign breast disease, parity, age at first birth, age at menarche, age at menopause, oral contraceptive use, BMI, physical activity, smoking, calcium supplement use, and alcohol intake.

When modeling the relationship between these variables and educational attainment, we control for mother's age at first birth and whether the individual was the firstborn, along with gender and race or ethnicity.

We show that the size of the drop in well - being around a first birth varies greatly; furthermore, this drop has important repercussions for completed family size, net of other factors, such as age at first birth, family resources, and partnership status.

In fact, for women as a whole, the median age at first birth (25.7) now falls before the median age at first marriage (26.5), a phenomenon we call «The Great Crossover,» after the «crossover» phenomenon first documented by the National Center for Family & Marriage Research and explored in greater detail here.

Indeed, «The Great Crossover,» as the report terms it, is that «for women as a whole, the median age at first birth (25.7) now falls before the median age at first marriage (26.5).»

For 33 % of the non-experimental research papers reviewed here, actual age at first birth, fertility to date, or parental investment from the parent's or child's perspectives are outcome variables.