Reliability and validity of last menstrual period for gestational age estimation in a low-to-middle-income setting
| Autor: | Shelley Macaulay, David B. Dunger, Eckhart Buchmann, Shane A. Norris |
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| Rok vydání: | 2018 |
| Předmět: |
medicine.medical_specialty
Longitudinal study Pregnancy 030219 obstetrics & reproductive medicine business.industry Obstetrics Gold standard Obstetrics and Gynecology Gestational age Prenatal diagnosis medicine.disease Confidence interval Menstruation 03 medical and health sciences 0302 clinical medicine 030220 oncology & carcinogenesis Medicine business Socioeconomic status |
| Zdroj: | Journal of Obstetrics and Gynaecology Research. 45:217-225 |
| ISSN: | 1341-8076 |
| Popis: | AIM Gestational age estimation by ultrasonography is the gold standard for dating pregnancies. However, the availability of prenatal ultrasonography in low-to-middle-income countries is limited. This study aimed to assess the reliability and validity of last menstrual period (LMP) as a gestational age dating method among women in Johannesburg, South Africa. METHODS A total of 741 pregnant women were enrolled into a longitudinal study (June 2013 to July 2016). Gestational age was determined by LMP and ultrasonography. Differences in ultrasound-based and LMP-based gestational age estimates were assessed according to the American College of Obstetrics and Gynecologists' guidelines and women were classified as having discrepant results or not. Multiple statistical analyses determined the level of agreement between the two methods and validity of LMP estimates. RESULTS Compared to ultrasound, dating by LMP assessed gestational age as 0.2 days longer. Women with discrepant results were of significantly lower weight and household socioeconomic status than those without discrepancies. While there was a substantial agreement (k = 0.64; 95% confidence interval, CI: 0.54, 0.71, P |
| Databáze: | OpenAIRE |
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