birth order

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birth order

A child’s ordinal position among the children in a family.


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
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 ?
We augmented the education results by examining earnings, whether full-time employed, and whether one had a child as a teenager as additional outcome variables, and found strong evidence for birth order effects, particularly for women.
This will put more pressure on the birth order effects as they have such serious repercussions for the future monarchy.
Post hoc test for group comparison, using the least significance difference, was computed to see the mean differences among four groups of birth order.
Table 1: Mean SD and t-ratio of the birth order wise four groups.
Birth order 3 or more and any intranatal complication was significantly associated with infection/sepsis.
This reflects that birth order contributes to learning and developmental processes.
There were no sex or birth order differences in self-reports of rivalry in childhood, adolescence, or currently in the sibling relationship.
Despite the large literature which reports birth order and family size effects on behavior (Sulloway, 1996; Zajonc & Markus, 1975), we did not observe them here.
This study shows that prevalence of anaemia was high in children with birth order of 3 and above when compared to lower birth order showing that high birth order was significantly associated with anaemia with a p value of 0.
But no matter how the researchers diced and spliced the data, they could find no link between birth order and any personality traits.
First, the great majority of studies on birth order and career choice have used small convenience samples, such as college students (Leong et al.
Acute leukemia is mainly casual cancer in adolescence and it might be due to increase of new chemical exposure into the patient's environment comprising of pesticides, parent's smoking, vehicle pollution, domestic chemicals, emulsions and birth order (Wiemels, 2012).