Pregnancy losses in young Australian women : findings from the Australian Longitudinal Study on Women's Health
Herbert, Danielle, Lucke, Jayne, & Dobson, Annette (2009) Pregnancy losses in young Australian women : findings from the Australian Longitudinal Study on Women's Health. Womens Health Issues, 19(1), pp. 21-29.
Little research has examined recognized pregnancy losses in a general population. Data from an Australian cohort study provide an opportunity to quantify this aspect of fecundity at a population level.
Participants in the Australian Longitudinal Study on Women's Health who were aged 28-33 years in 2006 (n = 9,145) completed up to 4 mailed surveys over 10 years. Participants were categorized according to the recognized outcome of their pregnancies, including live birth, miscarriage/stillbirth, termination/ectopic, or no pregnancy.
At age 18-23, more women reported terminations (7%) than miscarriages (4%). By 28-33 years, the cumulative frequency of miscarriage (15%) was as common as termination (16%). For women aged 28-33 years who had ever been pregnant (n = 5,343), pregnancy outcomes were as follows: birth only (50%); loss only (18%); and birth and loss (32%), of which half (16%) were birth and miscarriage. A comparison between first miscarriage and first birth (no miscarriage) showed that most first miscarriages occurred in women aged 18-23 years who also reported a first birth at the same survey (15%). Half (51%) of all first births and first miscarriages in women aged 18-19 ended in miscarriage. Early childbearers (<28 years) often had miscarriages around the same time period as their first live birth, suggesting proactive family formation. Delayed childbearers (32-33 years) had more first births than first miscarriages.
Recognized pregnancy losses are an important measure of fecundity in the general population because they indicate successful conception and maintenance of pregnancy to varying reproductive endpoints.
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|Item Type:||Journal Article|
|Keywords:||Abortion, Spontaneous/ep [Epidemiology], Adult, Age Distribution, Australia/ep [Epidemiology], Cohort Studies, Female, Fertility, Humans, Longitudinal Studies, Pregnancy, Pregnancy Complications/ep [Epidemiology], Pregnancy Outcome/ep [Epidemiology], Risk Factors, Women's Health, Young Adult|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000)|
|Divisions:||Current > Institutes > Institute of Health and Biomedical Innovation|
|Deposited On:||02 Nov 2012 10:58|
|Last Modified:||20 Nov 2012 11:16|
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