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Preterm birth, also known as premature birth, is the birth of a baby at fewer than 37 weeks gestational age, as opposed to full-term delivery at approximately 40 weeks. [1] Extreme preterm [ 2 ] is less than 28 weeks, very early preterm birth is between 28 and 32 weeks, early preterm birth occurs between 32 and 34 weeks, late preterm birth is ...
[15] [19] Inducing labour after 41 weeks of completed gestion is likely to reduce the risk of perinatal death and stillbirth compared with waiting for labour to start spontaneously. [20] Although there has been a recorded increase in the risk of perinatal death and stillbirth after 41 weeks of gestation, this risk is small.
Preterm birth, defined as birth at less than 37 weeks of gestation, is a major basis of infant mortality throughout childhood. Exposures to environmental toxins such as lead, tobacco smoke, and DDT have been linked with an increased risk for spontaneous abortion, low birth weight, or preterm birth. [3]
Preterm birth is the birth of an infant at fewer than 37 weeks gestational age. Globally, about 15 million infants were born before 37 weeks of gestation. [149] Premature birth is the leading cause of death in children under five years of age though many that survive experience disabilities including learning defects and visual and hearing ...
Unbeknownst to Tayvia, she was 37 weeks pregnant — and in active labor. What Tayvia is experienced is called a cryptic pregnancy , a rare situation in which someone does not know they are ...
Health outcomes for adults born prematurely are the long-term health effects for people who were born preterm, defined as being birthed at a gestational age of less than 37 weeks. It can be associated with and is often studied in the same group as low birth weight , but they are not the same, as preterms can also be large for gestational age .
The average age of a girl's first period is 12 to 13 (12.5 years in the United States, [6] 12.72 in Canada, [7] 12.9 in the UK [8]) but, in postmenarchal girls, about 80% of the cycles are anovulatory in the first year after menarche, which declines to 50% in the third year, and to 10% by the sixth. [9]
As of 2022, the world record for the lowest gestational age newborn to survive is held by Curtis Zy-Keith Means, who was born on 5 July 2020 in the United States, at 21 weeks and 1 day gestational age, weighing 420 grams. [5] A preterm birth, also known as premature birth, is defined as babies born alive before 37 weeks of pregnancy are ...