birth cohort


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Related to birth cohort: Cohort study

birth cohort

A group of people who were born during a particular period or year.

birth

a coming into being; the act or process of being born. See also parturition.

birth canal
the canal through which the fetus passes in birth; comprising the uterus, cervix, vagina and vulva.
birth cohort
see cohort.
birth control
a term rarely used in dealing with animals. Instead see population control, contraception.
birth defects
see congenital defects.
birth difficulties
dystocia.
birth injury
occurs to the fetus during birth. Includes rib fracture and meningeal hemorrhage.
birth interval
the interval between succeeding parturitions. See also calving interval.
multiple birth
the birth of two or more offspring produced in the same gestation period.
birth order
the chronological order of births in a multiple birth. May have significance in causing stillbirths if the intervals between births are prolonged because of inertia.
premature birth
expulsion of the fetus from the uterus before termination of the normal gestation period, but after independent existence has become a possibility. In humans prematurity is defined as a pregnancy of less than 37 weeks in a pregnancy normally lasting 40 weeks.
birth process
comprises maturation of the fetus, relaxation of the bony pelvis and associated ligaments, softening and relaxation of the cervix, vagina, vulva and perineum, correct disposition of the fetus, contractions of the uterine myometrium and finally the only component under voluntary control, contraction of the abdominal muscles.
birth rate
the number of births during one year for the total population (crude birth rate), for the female population (refined birth rate), or for the female population of reproductive age (true birth rate). Not a term much used with reference to animals. See calving, lambing rate.
birth size
stature, including height at withers, crown to tail head length at birth.
birth weight
the weight at birth. A significant determinant of survival in any species and of the occurrence of dystocia. See also prolonged gestation.
References in periodicals archive ?
Early-life exposure to indoor air pollution or tobacco smoke and lower respiratory tract illness and wheezing in African infants: A longitudinal birth cohort study.
Table 1 displays sample sizes and descriptive statistics of selected variables by birth cohort and gender.
It can be observed that with regard to the period effect adjusted by age and birth cohort effects, in the Center-West, South and Southeast regions, the risk of death by homicide was lower than 1 in all periods when compared to the reference period (1995 to 1999) (Table 1 and Figure 4).
non-institutionalized, civilian population for this birth cohort.
15 and showed no significant difference among each 10-year birth cohort group (p=0.
For over 40 years the ESRC has been a major funder and proponent of longitudinal studies including birth cohorts.
The highest proportion of LT waitlist registrations for HCV-related ESLD was for persons in the birth cohort and increased incrementally from 61.
But Americans today -- particularly those between 35 and 64 -- are more supportive of legal marijuana than members of their same birth cohort were in the past.
Those studied were part of the Lothian Birth Cohort 1936 - a group born in 1936 who took part in the Scottish Mental Survey of 1947.
Maternal vegetarianism and neurodevelopment of children enrolled in The Danish National Birth Cohort.