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Obstetrics and Gynecology International
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Obstetrics and Gynecology International
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2018
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Article
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Tab 1
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Research Article
Evaluating the Agreement of Risk Categorization for Fetal Down Syndrome Screening between Ultrasound-Based Gestational Age and Menstrual-Based Gestational Age by Maternal Serum Markers
Table 1
Demographic data.
Mean
SD
Range
Maternal age (year)
1st trimester screening
29.05 ± 5.6
2nd trimester screening
29.3 ± 5.7
Total
29.2 ± 5.6
13.7–45.8
Maternal weight (kilograms)
1st trimester screening
54.9 ± 10.0
2nd trimester screening
56.1 ± 1.0
Total
55.5 ± 10.1
30.5–138.0
Gestational age (days)
1st trimester screening
LMP
dating
87.2 ± 6.3
70–97
US dating
87.1 ± 5.3
70–98
2nd trimester screening
LMP dating
112.9 ± 9.2
98–146
US dating
111.5 ± 7.2
98–142
LMP, last menstrual period; US, ultrasound.